NavList threads from 2020

[Back to overview of years]

31 Dec 2019 – 01 Jan 2020 : New Year's Eve

  1. 2019-12-31 23:10 Rommel John Miller
  2. 2020-01-01 03:11 David C
  3. 2020-01-01 03:42 John D. Howard
  4. 2020-01-01 04:06 David C

22 Dec 2019 – 01 Jan 2020 : Correcting for the movement of an observer: a plausible explanation?

  1. 2019-12-22 22:35 Tony Oz
  2. 2019-12-23 03:11 Frank Reed
  3. 2019-12-23 04:12 Greg Rudzinski
  4. 2019-12-23 12:09 Ed Popko
  5. 2019-12-23 15:20 David Pike
  6. 2019-12-23 15:53 Tony Oz
  7. 2019-12-23 18:28 Michael Cain
  8. 2019-12-24 14:44 Tony Oz
  9. 2019-12-26 10:12 Tony Oz
  10. 2019-12-28 21:12 Frank Reed
  11. 2019-12-28 23:25 Gary LaPook
  12. 2019-12-28 23:37 Gary LaPook
  13. 2019-12-29 20:15 David Pike
  14. 2019-12-31 23:56 Frank Reed
  15. 2020-01-01 01:08 Gary LaPook
  16. 2020-01-01 20:03 David Pike

01 Jan 2020 – 01 Jan 2020 : Unusual Sun

  1. 2020-01-01 06:53 David C
  2. 2020-01-01 17:35 Bill Ritchie
  3. 2020-01-01 20:15 David C
  4. 2020-01-01 22:30 Igor S.

03 Jan 2020 – 03 Jan 2020 : How high is "Angels One Five"?

  1. 2020-01-03 02:41 Tony Oz
  2. 2020-01-03 03:13 Bob Goethe
  3. 2020-01-03 03:25 John D. Howard

25 Dec 2019 – 03 Jan 2020 : Radium Infused Bubble Sextant

  1. 2019-12-25 17:06 Brad Morris
  2. 2019-12-25 20:05 Francis Upchurch
  3. 2019-12-25 21:09 David C
  4. 2019-12-25 21:23 Gary LaPook
  5. 2019-12-25 22:07 David C
  6. 2019-12-26 07:35 Francis Upchurch
  7. 2019-12-26 08:09 Tony Oz
  8. 2019-12-28 23:39 Gary LaPook
  9. 2020-01-03 04:36 Paul Dolkas

30 Dec 2019 – 03 Jan 2020 : Pilot watch slide rules

  1. 2019-12-30 21:03 Paul Hirose
  2. 2019-12-30 23:01 Sean C
  3. 2019-12-31 06:15 Tony Oz
  4. 2020-01-03 02:34 Paul Dolkas
  5. 2020-01-03 07:50 Paul Hirose

04 Jan 2020 – 04 Jan 2020 : NPR article on Betelgeuse

  1. 2020-01-04 01:48 Rommel John Miller

03 Jan 2020 – 05 Jan 2020 : Re: Dating Hughes and Son sextants

  1. 2020-01-03 09:24 Niall Fitzpatrick
  2. 2020-01-04 05:45 Sean C
  3. 2020-01-04 06:45 Francis Upchurch
  4. 2020-01-04 21:11 Fred Hebard
  5. 2020-01-04 21:28 Frank Reed
  6. 2020-01-04 23:07 David Pike
  7. 2020-01-05 05:06 Fred Hebard
  8. 2020-01-05 07:13 Bill Morris
  9. 2020-01-05 19:19 Fred Hebard

04 Jan 2020 – 07 Jan 2020 : A strange addition to a sextant

  1. 2020-01-04 19:14 Gary LaPook
  2. 2020-01-04 21:22 Frank Reed
  3. 2020-01-04 21:42 Gary LaPook
  4. 2020-01-04 22:08 Jackson McDonald
  5. 2020-01-05 08:52 Philippe Posth
  6. 2020-01-07 04:55 Robert Eno

04 Jan 2020 – 07 Jan 2020 : Re: Longitude by Lunar Occultation

  1. 2020-01-04 16:01 Robin Stuart
  2. 2020-01-04 18:09 Frank Reed
  3. 2020-01-04 21:12 Robin Stuart
  4. 2020-01-07 17:08 Robin Stuart

06 Jan 2020 – 07 Jan 2020 : Navigating in Microsoft Flight Simulator

  1. 2020-01-06 00:59 Frank Reed
  2. 2020-01-06 03:14 Jim Rives
  3. 2020-01-06 09:21 David Pike
  4. 2020-01-06 15:41 Jim Rives
  5. 2020-01-06 17:49 Joe Suligoy
  6. 2020-01-06 19:18 Dustin Baenen
  7. 2020-01-06 19:50 David Pike
  8. 2020-01-06 23:39 Jim Rives
  9. 2020-01-06 23:54 David Pike
  10. 2020-01-07 02:25 Frank Reed
  11. 2020-01-07 03:17 Jim Rives
  12. 2020-01-07 04:01 Joe Suligoy
  13. 2020-01-07 23:59 Frank Reed

07 Jan 2020 – 08 Jan 2020 : Beidou Network Operational

  1. 2020-01-07 23:26 David C
  2. 2020-01-08 00:21 Frank Reed

08 Jan 2020 – 08 Jan 2020 : Captain Cook's Astronomy

  1. 2020-01-08 17:25 Robin Stuart

08 Jan 2020 – 08 Jan 2020 : Variation or Declination?

  1. 2020-01-08 03:08 David C
  2. 2020-01-08 03:30 Frank Reed
  3. 2020-01-08 04:44 Joe Suligoy
  4. 2020-01-08 16:40 David Pike
  5. 2020-01-08 17:01 Jim Rives
  6. 2020-01-08 17:22 Frank Reed
  7. 2020-01-08 17:46 Brad Morris

04 Jan 2020 – 09 Jan 2020 : Position bias from UTC

  1. 2020-01-04 16:49 Robin Stuart
  2. 2020-01-04 18:37 Frank Reed
  3. 2020-01-04 20:51 David Iwancio
  4. 2020-01-04 21:38 Robin Stuart
  5. 2020-01-07 21:46 Paul Hirose
  6. 2020-01-08 02:52 John D. Howard
  7. 2020-01-09 06:22 Paul Hirose
  8. 2020-01-09 11:33 David Iwancio

07 Jan 2020 – 09 Jan 2020 : Moon’s SD

  1. 2020-01-07 14:02 Jim Rives
  2. 2020-01-07 17:09 Murray Peake
  3. 2020-01-07 17:09 Frank Reed
  4. 2020-01-08 03:49 Jim Rives
  5. 2020-01-08 19:19 Frank Reed
  6. 2020-01-09 21:11 Jim Rives

10 Jan 2020 – 10 Jan 2020 : Jupiter-Saturn Conjunction: 21 Dec 2020

  1. 2020-01-10 02:57 Frank Reed
  2. 2020-01-10 03:25 Brad Morris

11 Jan 2020 – 12 Jan 2020 : Reed's Lunars Calculator Anniversary

  1. 2020-01-11 12:46 Ed Popko
  2. 2020-01-11 18:56 Brad Morris
  3. 2020-01-12 00:15 Ed Popko
  4. 2020-01-12 00:50 Frank Reed

23 Dec 2019 – 12 Jan 2020 : Mystery Navy Device

  1. 2019-12-23 14:04 Geoffrey Kolbe
  2. 2019-12-23 21:56 William Edward Henry
  3. 2019-12-23 22:03 Luc Van den Borre
  4. 2020-01-11 18:28 William Edward Henry
  5. 2020-01-11 23:15 Luc Van den Borre
  6. 2020-01-12 13:18 Geoffrey Kolbe

15 Dec 2019 – 13 Jan 2020 : Air Almanac 2020 full pdf now available...

  1. 2019-12-15 23:33 Frank Reed
  2. 2019-12-16 01:35 John D. Howard
  3. 2019-12-16 04:50 Michael Cain
  4. 2019-12-20 01:38 Tracy Shrier
  5. 2020-01-01 20:33 David C
  6. 2020-01-13 16:01 Thomas Spidle

13 Jan 2020 – 13 Jan 2020 : Survival at Sea, Stove by an Orca

  1. 2020-01-13 03:33 Frank Reed
  2. 2020-01-13 09:07 Bill Lionheart
  3. 2020-01-13 09:12 Bill Lionheart
  4. 2020-01-13 09:37 Bill Lionheart
  5. 2020-01-13 19:27 Frank Reed

13 Jan 2020 – 14 Jan 2020 : Yellow page in NA

  1. 2020-01-13 09:12 Igor S.
  2. 2020-01-13 15:53 Michael Cain
  3. 2020-01-13 17:46 Robert VanderPol II
  4. 2020-01-13 17:49 David Pike
  5. 2020-01-13 20:58 Rafael C. Caruso
  6. 2020-01-14 06:49 David Iwancio
  7. 2020-01-14 21:11 David C
  8. 2020-01-14 22:33 David Iwancio

15 Jan 2020 – 15 Jan 2020 : Re: Stellarium, refraction, HP ---- YES!

  1. 2020-01-15 00:18 Jim Rives
  2. 2020-01-15 01:22 Frank Reed
  3. 2020-01-15 01:45 Jim Rives
  4. 2020-01-15 03:20 Joe Suligoy
  5. 2020-01-15 04:02 Jim Rives

08 Jan 2020 – 15 Jan 2020 : SpaceX Starlink launch: photo celestial

  1. 2020-01-08 20:10 Frank Reed
  2. 2020-01-08 22:34 David Pike
  3. 2020-01-09 10:34 David Pike
  4. 2020-01-09 15:23 Greg Rudzinski
  5. 2020-01-09 19:56 Frank Reed
  6. 2020-01-09 20:12 Frank Reed
  7. 2020-01-09 22:35 David Pike
  8. 2020-01-11 01:22 Frank Reed
  9. 2020-01-12 02:57 Frank Reed
  10. 2020-01-12 09:08 David Pike
  11. 2020-01-12 13:37 R William McAllister
  12. 2020-01-14 01:25 Frank Reed
  13. 2020-01-14 09:00 David Pike
  14. 2020-01-14 20:01 Frank Reed
  15. 2020-01-14 22:52 David Pike
  16. 2020-01-15 01:08 Frank Reed
  17. 2020-01-15 08:32 David Pike

09 Jan 2020 – 15 Jan 2020 : Stellarium, refraction, HP

  1. 2020-01-09 21:25 Jim Rives
  2. 2020-01-09 23:24 Jim Rives
  3. 2020-01-10 01:32 Frank Reed
  4. 2020-01-10 11:23 Ed Popko
  5. 2020-01-10 23:51 Joe Suligoy
  6. 2020-01-11 01:20 Jim Rives
  7. 2020-01-11 12:39 Ed Popko
  8. 2020-01-11 18:08 Jim Rives
  9. 2020-01-12 00:09 Ed Popko
  10. 2020-01-12 14:11 Jim Rives
  11. 2020-01-12 23:13 Frank Reed
  12. 2020-01-13 01:09 Jim Rives
  13. 2020-01-13 04:08 Jim Rives
  14. 2020-01-13 04:23 Frank Reed
  15. 2020-01-13 04:45 Jim Rives
  16. 2020-01-14 01:00 Jim Rives
  17. 2020-01-14 01:43 Frank Reed
  18. 2020-01-14 02:54 Jim Rives
  19. 2020-01-14 03:42 Frank Reed
  20. 2020-01-14 19:31 Paul Hirose
  21. 2020-01-14 23:57 Frank Reed
  22. 2020-01-15 00:03 Jim Rives
  23. 2020-01-15 13:10 Ed Popko
  24. 2020-01-15 17:40 Jim Rives
  25. 2020-01-15 23:47 Ed Popko

12 Jan 2020 – 16 Jan 2020 : Curve fitting for noon Sun

  1. 2020-01-12 16:33 Rafael C. Caruso
  2. 2020-01-12 23:41 Brad Morris
  3. 2020-01-13 00:02 Frank Reed
  4. 2020-01-13 00:19 David Fleming
  5. 2020-01-13 00:20 Frank Reed
  6. 2020-01-13 00:52 Brad Morris
  7. 2020-01-13 01:00 Frank Reed
  8. 2020-01-13 01:35 John D. Howard
  9. 2020-01-13 17:00 Igor S.
  10. 2020-01-13 20:32 Rafael C. Caruso
  11. 2020-01-14 00:38 Hewitt Schlereth
  12. 2020-01-14 15:10 Dave Walden
  13. 2020-01-14 19:37 Frank Reed
  14. 2020-01-14 22:18 Rafael C. Caruso
  15. 2020-01-14 23:42 Frank Reed
  16. 2020-01-16 00:10 Rafael C. Caruso

16 Jan 2020 – 16 Jan 2020 : GPS jamming

  1. 2020-01-16 08:20 Gary LaPook

16 Jan 2020 – 16 Jan 2020 : Re: Robin Stuart's paper "Probabilities in a Gaussian Cocked Hat"

  1. 2020-01-16 16:19 Robin Stuart

16 Jan 2020 – 16 Jan 2020 : Starlink satellites over New England tonight

  1. 2020-01-16 18:43 Frank Reed

16 Jan 2020 – 17 Jan 2020 : Compass direction from Moon

  1. 2020-01-16 18:39 Herman Dekker
  2. 2020-01-16 19:05 Frank Reed
  3. 2020-01-16 19:44 Igor S.
  4. 2020-01-17 03:20 Frank Reed

16 Jan 2020 – 17 Jan 2020 : Historic US chart & map collections

  1. 2020-01-16 21:03 Paul Hirose
  2. 2020-01-17 15:29 Mike Mayer

17 Jan 2020 – 17 Jan 2020 : Some pop culture sextants

  1. 2020-01-17 04:09 Frank Reed
  2. 2020-01-17 04:25 R William McAllister
  3. 2020-01-17 19:34 Frank Reed

17 Jan 2020 – 17 Jan 2020 : Time lapse coastal voyage with stars (and he can use a sextant)

  1. 2020-01-17 23:55 Dave Walden

09 Jan 2020 – 18 Jan 2020 : RAF Air Navigation: listing on ebay

  1. 2020-01-09 19:27 Bob Crawley
  2. 2020-01-09 21:59 David Pike
  3. 2020-01-15 19:36 David Pike
  4. 2020-01-16 10:27 Bob Crawley
  5. 2020-01-17 14:01 David Pike
  6. 2020-01-18 09:16 Bob Crawley

18 Jan 2020 – 18 Jan 2020 : Designed for the use of British Seaman

  1. 2020-01-18 22:06 David C
  2. 2020-01-18 23:51 Doug MacPherson

17 Jan 2020 – 19 Jan 2020 : Hardly ever get an LOP than 20 NM - why?

  1. 2020-01-17 03:42 Laurence HOlden
  2. 2020-01-17 06:11 Alan S
  3. 2020-01-17 08:18 Tony Oz
  4. 2020-01-17 08:56 Igor S.
  5. 2020-01-17 09:34 Jeremy C
  6. 2020-01-17 10:31 David Pike
  7. 2020-01-17 14:16 Jim Hickey
  8. 2020-01-17 14:29 Fred Hebard
  9. 2020-01-17 14:38 Greg Rudzinski
  10. 2020-01-17 16:49 Frank Reed
  11. 2020-01-17 19:58 Hewitt Schlereth
  12. 2020-01-18 02:48 Laurence Holden
  13. 2020-01-18 03:07 Laurence Holden
  14. 2020-01-18 03:14 Laurence Holden
  15. 2020-01-18 03:17 Laurence Holden
  16. 2020-01-18 06:50 Geoffrey Kolbe
  17. 2020-01-18 07:34 Geoffrey Kolbe
  18. 2020-01-18 09:45 Jeremy C
  19. 2020-01-18 16:08 John D. Howard
  20. 2020-01-18 17:33 Nick M
  21. 2020-01-18 18:46 Nick M
  22. 2020-01-18 23:03 Hewitt Schlereth
  23. 2020-01-18 23:21 Laurence Holden
  24. 2020-01-18 23:30 Laurence Holden
  25. 2020-01-18 23:45 Laurence Holden
  26. 2020-01-19 02:03 Nick M
  27. 2020-01-19 02:45 Laurence Holden
  28. 2020-01-19 03:08 Frank Reed
  29. 2020-01-19 07:03 Laurence Holden

19 Jan 2020 – 19 Jan 2020 : Lunar 17Jan20 Interpretation of Results

  1. 2020-01-19 13:08 Jim Rives

19 Jan 2020 – 19 Jan 2020 : IPhone 10 Compass/Sextant

  1. 2020-01-19 14:35 Jeremy Clark

19 Jan 2020 – 19 Jan 2020 : Mars Occultation Feb 18 2020

  1. 2020-01-19 14:42 Jim Rives

13 Jan 2020 – 19 Jan 2020 : Cold War Sun Hours

  1. 2020-01-13 17:59 R William McAllister
  2. 2020-01-17 19:44 Frank Reed
  3. 2020-01-19 19:08 David Pike

19 Jan 2020 – 20 Jan 2020 : Compass Check

  1. 2020-01-19 02:12 David C
  2. 2020-01-19 07:15 David C
  3. 2020-01-19 08:07 David C
  4. 2020-01-19 10:19 Jeremy C
  5. 2020-01-20 04:27 David C
  6. 2020-01-20 04:34 David C

19 Jan 2020 – 20 Jan 2020 : Bausch and Lomb WWII Aircraft Sextants

  1. 2020-01-19 20:08 Robert Swartz
  2. 2020-01-20 17:01 Ed Popko
  3. 2020-01-20 18:29 Robert Swartz
  4. 2020-01-20 18:52 Robert Swartz

22 Jan 2020 – 22 Jan 2020 : Fwd: Journal of,Astronomical History and Heritage December 2019

  1. 2020-01-22 05:18 Paul Hirose

21 Jan 2020 – 22 Jan 2020 : Percy Lyall Hooker Davis' High Latitude Tables

  1. 2020-01-21 05:45 David C
  2. 2020-01-22 15:50 Robin Stuart

19 Jan 2020 – 22 Jan 2020 : Why Can't My GNSS Receiver See Galileo?

  1. 2020-01-19 11:52 Sean C
  2. 2020-01-19 18:04 Frank Reed
  3. 2020-01-19 19:27 Bob Goethe
  4. 2020-01-19 21:43 Ian Vaughn
  5. 2020-01-20 01:56 Dave Walden
  6. 2020-01-20 03:15 Frank Reed
  7. 2020-01-20 03:49 Dave Walden
  8. 2020-01-20 04:08 Frank Reed
  9. 2020-01-20 13:07 Richard B. Langley
  10. 2020-01-21 21:11 David C
  11. 2020-01-21 21:15 David C
  12. 2020-01-21 22:25 David C
  13. 2020-01-22 21:16 David Pike

23 Jan 2020 – 23 Jan 2020 : Davis Instruments Prism-Level Owner's Manual

  1. 2020-01-23 01:51 Roger C Bucholz

23 Jan 2020 – 24 Jan 2020 : Wikipedia: (Russian-language) article on Gauss's direct fix calculations

  1. 2020-01-23 08:32 Tony Oz
  2. 2020-01-23 21:18 Alexandre Eremenko
  3. 2020-01-24 09:40 Tony Oz
  4. 2020-01-24 23:45 Igor S.

21 Jan 2020 – 26 Jan 2020 : Cosine formula to solve a right spherical triangle?

  1. 2020-01-21 03:27 Rajeev Yadav
  2. 2020-01-21 18:27 David Iwancio
  3. 2020-01-21 20:06 Alexandre Eremenko
  4. 2020-01-22 16:35 Fred Hebard
  5. 2020-01-22 23:54 David Iwancio
  6. 2020-01-23 03:36 Frank Reed
  7. 2020-01-26 12:36 Ed Popko

26 Jan 2020 – 26 Jan 2020 : Cold War Hangar Navigating & Tales from On-board Shuttle

  1. 2020-01-26 18:47 R William McAllister

25 Jan 2020 – 27 Jan 2020 : Navigation devices available now on ebay.

  1. 2020-01-25 07:05 Gary LaPook
  2. 2020-01-25 19:40 David Pike
  3. 2020-01-25 23:17 Gary LaPook
  4. 2020-01-26 09:05 David Pike
  5. 2020-01-27 05:02 Gary LaPook

19 Jan 2020 – 27 Jan 2020 : No DR position. How can you get an accurate celestial fix?

  1. 2020-01-19 15:29 Robert Goldberg
  2. 2020-01-19 17:30 Jim Rives
  3. 2020-01-19 17:41 John D. Howard
  4. 2020-01-19 17:47 John D. Howard
  5. 2020-01-19 18:13 Frank Reed
  6. 2020-01-19 18:47 David Pike
  7. 2020-01-19 19:27 Frank Reed
  8. 2020-01-19 19:40 David Pike
  9. 2020-01-19 20:01 Frank Reed
  10. 2020-01-20 00:18 Ron Jones
  11. 2020-01-20 17:42 Dustin Baenen
  12. 2020-01-21 11:43 Bill Lionheart
  13. 2020-01-21 19:17 Gary LaPook
  14. 2020-01-22 09:02 David Iwancio
  15. 2020-01-23 02:56 Frank Reed
  16. 2020-01-23 19:26 Gary LaPook
  17. 2020-01-24 07:45 Bill Lionheart
  18. 2020-01-24 19:41 David Pike
  19. 2020-01-25 03:39 Peter Hakel
  20. 2020-01-25 08:07 David Pike
  21. 2020-01-25 16:01 Mike Burkes
  22. 2020-01-25 19:12 Frank Reed
  23. 2020-01-26 02:25 David C
  24. 2020-01-27 06:33 David C

25 Jan 2020 – 27 Jan 2020 : Celestial navigation: easier basic principle?

  1. 2020-01-25 04:42 A Ponics
  2. 2020-01-26 07:44 Peter Monta
  3. 2020-01-26 12:51 R William McAllister
  4. 2020-01-26 19:10 Bruce Cutting
  5. 2020-01-27 02:59 Peter Monta
  6. 2020-01-27 03:23 Bruce Cutting
  7. 2020-01-27 06:54 Geoffrey Kolbe
  8. 2020-01-27 10:56 Ed Popko

27 Jan 2020 – 27 Jan 2020 : HMNAO Websites Down Too?

  1. 2020-01-27 07:38 David Iwancio
  2. 2020-01-27 16:22 David Iwancio

27 Jan 2020 – 29 Jan 2020 : Earliest Crescent Moon Visibility

  1. 2020-01-27 14:27 Herman Dekker
  2. 2020-01-27 16:41 Robert H. van Gent
  3. 2020-01-27 17:04 Frank Reed
  4. 2020-01-27 17:21 David Iwancio
  5. 2020-01-27 17:30 Gary LaPook
  6. 2020-01-29 11:31 Herman Dekker

26 Jan 2020 – 29 Jan 2020 : Sky & Telescope Magazine article on Capt. Cook's Astronomy

  1. 2020-01-26 06:28 Paul Saffo
  2. 2020-01-26 20:07 Roger W. Sinnott
  3. 2020-01-26 20:56 Frank Reed
  4. 2020-01-26 23:36 Roger W. Sinnott
  5. 2020-01-27 14:44 Robin Stuart
  6. 2020-01-27 18:14 Frank Reed
  7. 2020-01-29 21:08 David Pike
  8. 2020-01-29 21:26 Ed Popko

29 Jan 2020 – 30 Jan 2020 : Satellite collision over northeast US

  1. 2020-01-29 19:29 Frank Reed
  2. 2020-01-30 00:22 Dave Walden
  3. 2020-01-30 02:59 Jim Rives

27 Jan 2020 – 30 Jan 2020 : GPS Anti Spoof based on radio sextant ?

  1. 2020-01-27 16:43 Igor S.
  2. 2020-01-28 19:06 Frank Reed
  3. 2020-01-29 20:18 Igor S.
  4. 2020-01-29 22:22 Igor S.
  5. 2020-01-30 11:50 David Pike

30 Jan 2020 – 31 Jan 2020 : Anti-spoof testing my sextant

  1. 2020-01-30 17:00 Jim Rives
  2. 2020-01-31 01:57 Frank Reed
  3. 2020-01-31 02:07 Frank Reed
  4. 2020-01-31 03:06 Jim Rives

31 Jan 2020 – 31 Jan 2020 : Re: Starmaster slide rule on ebay

  1. 2020-01-31 11:56 Wil Bailey

31 Jan 2020 – 31 Jan 2020 : Arthur Rostron's sextant

  1. 2020-01-31 22:15 Paul Hirose

01 Feb 2020 – 02 Feb 2020 : Scale of Intercept

  1. 2020-02-01 04:32 David C
  2. 2020-02-01 17:20 Frank Reed
  3. 2020-02-01 17:55 John D. Howard
  4. 2020-02-01 19:01 David Pike
  5. 2020-02-01 21:19 David C
  6. 2020-02-02 01:13 Frank Reed
  7. 2020-02-02 01:25 John D. Howard
  8. 2020-02-02 03:16 David C
  9. 2020-02-02 07:14 Sean C
  10. 2020-02-02 07:19 Sean C

02 Feb 2020 – 03 Feb 2020 : A postage stamp on a football?? – try a cricket ball.

  1. 2020-02-02 10:28 David Pike
  2. 2020-02-03 02:14 Frank Reed

22 Jan 2020 – 05 Feb 2020 : Captain Cook & celestial navigation

  1. 2020-01-22 16:35 Rafael C. Caruso
  2. 2020-01-22 22:32 David Pike
  3. 2020-01-29 17:01 Frank Reed
  4. 2020-01-29 17:52 Robin Stuart
  5. 2020-01-29 19:36 David Pike
  6. 2020-01-30 06:58 Geoffrey Kolbe
  7. 2020-01-30 07:44 Geoffrey Kolbe
  8. 2020-01-30 18:54 Robin Stuart
  9. 2020-01-30 21:07 Robin Stuart
  10. 2020-01-31 18:35 John D. Howard
  11. 2020-02-02 08:10 Geoffrey Kolbe
  12. 2020-02-02 18:26 Robin Stuart
  13. 2020-02-02 18:53 Robin Stuart
  14. 2020-02-03 02:53 Frank Reed
  15. 2020-02-03 05:17 Geoffrey Kolbe
  16. 2020-02-03 05:36 Geoffrey Kolbe
  17. 2020-02-03 06:20 Geoffrey Kolbe
  18. 2020-02-04 15:47 Robin Stuart
  19. 2020-02-05 10:04 Wolfgang Köberer

04 Feb 2020 – 05 Feb 2020 : Russian Tables of Computed Altitude and Azimuth

  1. 2020-02-04 14:44 Tony Oz
  2. 2020-02-05 09:36 Igor S.
  3. 2020-02-05 17:13 Tony Oz

02 Feb 2020 – 05 Feb 2020 : History & development of HO-249

  1. 2020-02-02 17:18 Igor S.
  2. 2020-02-03 00:21 Gary LaPook
  3. 2020-02-03 02:51 Robert VanderPol II
  4. 2020-02-03 03:56 Frank Reed
  5. 2020-02-04 03:10 David C
  6. 2020-02-05 09:42 Igor S.
  7. 2020-02-05 18:46 Gary LaPook
  8. 2020-02-05 19:25 Gary LaPook
  9. 2020-02-05 19:29 Gary LaPook
  10. 2020-02-05 19:30 Gary LaPook

06 Feb 2020 – 06 Feb 2020 : The All-Haversine formula for Hc known since 1924?

  1. 2020-02-06 17:56 Tony Oz

05 Feb 2020 – 06 Feb 2020 : Re: Latitude by two stars observed simultaneously

  1. 2020-02-05 19:21 Alan S
  2. 2020-02-06 18:25 Frank Reed

05 Feb 2020 – 08 Feb 2020 : Re: Weems Star Altitude Curves

  1. 2020-02-05 13:51 Tony Oz
  2. 2020-02-05 17:39 Murray Peake
  3. 2020-02-06 08:14 Tony Oz
  4. 2020-02-06 19:43 Murray Peake
  5. 2020-02-06 20:17 Murray Peake
  6. 2020-02-06 20:50 Tony Oz
  7. 2020-02-06 21:05 Murray Peake
  8. 2020-02-06 22:06 Tony Oz
  9. 2020-02-06 22:28 Murray Peake
  10. 2020-02-07 08:54 Murray Peake
  11. 2020-02-07 18:48 Tony Oz
  12. 2020-02-07 23:08 Dave Walden
  13. 2020-02-08 08:20 Tony Oz
  14. 2020-02-08 08:52 Murray Peake
  15. 2020-02-08 09:09 Murray Peake
  16. 2020-02-08 18:47 Frank Reed
  17. 2020-02-08 20:00 Tony Oz

09 Feb 2020 – 09 Feb 2020 : Classical Lunars diagram: who invented it ?

  1. 2020-02-09 14:43 Antoine Couëtte
  2. 2020-02-09 17:46 Frank Reed

08 Feb 2020 – 10 Feb 2020 : Is this a real site (celestial... .info)?

  1. 2020-02-08 17:59 Doug Faunt
  2. 2020-02-08 18:55 Igor S.
  3. 2020-02-08 19:06 Frank Reed
  4. 2020-02-08 19:47 Paul Hirose
  5. 2020-02-08 22:12 Doug Faunt
  6. 2020-02-09 08:16 David C
  7. 2020-02-09 19:07 Philippe Posth
  8. 2020-02-10 00:25 Frank Reed
  9. 2020-02-10 00:48 Ken Gebhart Jr.
  10. 2020-02-10 08:29 Bill Lionheart

30 Jan 2020 – 12 Feb 2020 : Moon Venus Lunar - Interpretation of results

  1. 2020-01-30 16:49 Jim Rives
  2. 2020-01-31 01:36 Frank Reed
  3. 2020-01-31 02:59 Jim Rives
  4. 2020-01-31 03:36 Sean C
  5. 2020-01-31 06:05 Sean C
  6. 2020-01-31 12:36 Ed Popko
  7. 2020-01-31 15:06 Geoffrey Kolbe
  8. 2020-02-01 01:09 Jim Rives
  9. 2020-02-01 01:38 Jim Rives
  10. 2020-02-01 01:46 Jim Rives
  11. 2020-02-01 23:54 Paul Hirose
  12. 2020-02-02 02:08 Frank Reed
  13. 2020-02-02 22:26 Jim Rives
  14. 2020-02-03 17:58 Frank Reed
  15. 2020-02-03 19:00 Paul Hirose
  16. 2020-02-03 21:19 Jim Rives
  17. 2020-02-03 21:54 Jim Rives
  18. 2020-02-07 13:09 Antoine Couëtte
  19. 2020-02-08 04:05 Frank Reed
  20. 2020-02-08 07:41 Antoine Couëtte
  21. 2020-02-12 06:11 Paul Hirose

12 Feb 2020 – 12 Feb 2020 : Re: Time of Sun & Moon rise and set

  1. 2020-02-12 19:06 Steve E. Bryant
  2. 2020-02-12 20:13 Steve E. Bryant

12 Feb 2020 – 13 Feb 2020 : Re: What does the Analemma depict?

  1. 2020-02-12 18:59 Steve E. Bryant
  2. 2020-02-12 20:46 Steve E. Bryant
  3. 2020-02-12 22:27 David Iwancio
  4. 2020-02-13 13:35 Ed Popko

11 Feb 2020 – 13 Feb 2020 : Sun Slow Day

  1. 2020-02-11 18:29 Frank Reed
  2. 2020-02-12 11:23 Ed Popko
  3. 2020-02-13 14:10 Robert VanderPol II

13 Feb 2020 – 13 Feb 2020 : Celnav apps for Android

  1. 2020-02-13 18:01 Andrés Ruiz

08 Feb 2020 – 13 Feb 2020 : Celestial Navigation classes in the UK in June

  1. 2020-02-08 19:30 Frank Reed
  2. 2020-02-08 20:33 Greg Rudzinski
  3. 2020-02-13 20:05 Frank Reed

09 Feb 2020 – 14 Feb 2020 : A-12 Experiences

  1. 2020-02-09 11:44 Ed Popko
  2. 2020-02-09 17:47 Geoffrey Kolbe
  3. 2020-02-09 23:23 Tibor Miseta
  4. 2020-02-10 00:57 Ed Popko
  5. 2020-02-10 01:06 Ed Popko
  6. 2020-02-10 05:56 Geoffrey Kolbe
  7. 2020-02-10 07:04 Robert VanderPol II
  8. 2020-02-10 19:47 David Pike
  9. 2020-02-11 13:36 Ed Popko
  10. 2020-02-11 18:20 Tony Oz
  11. 2020-02-11 19:19 David Pike
  12. 2020-02-12 11:12 Ed Popko
  13. 2020-02-14 14:39 Andrés Ruiz

13 Feb 2020 – 15 Feb 2020 : Automatic Plotting of LOP's using graphing calculator

  1. 2020-02-13 22:57 Alex Spradling
  2. 2020-02-13 23:19 Tony Oz
  3. 2020-02-14 00:34 Alex Spradling
  4. 2020-02-14 06:54 Andrés Ruiz
  5. 2020-02-14 08:45 Tony Oz
  6. 2020-02-14 18:43 Tony Oz
  7. 2020-02-15 02:23 Bill Ritchie

14 Feb 2020 – 17 Feb 2020 : Lunar distance parallactic retardation

  1. 2020-02-14 21:24 Paul Hirose
  2. 2020-02-15 18:12 Antoine Couëtte
  3. 2020-02-17 19:32 Frank Reed

06 Jan 2020 – 17 Feb 2020 : Re: Kollsman periscopic sextant mount

  1. 2020-01-06 00:14 Jacob M. Huffman III
  2. 2020-01-06 15:36 Ken Gebhart
  3. 2020-02-06 07:05 Jakub Stastny
  4. 2020-02-09 05:54 Gary LaPook
  5. 2020-02-09 12:57 David Pike
  6. 2020-02-09 13:04 R William McAllister
  7. 2020-02-10 06:09 Gary LaPook
  8. 2020-02-10 06:46 Gary LaPook
  9. 2020-02-15 19:08 Michael Jones
  10. 2020-02-16 07:13 Gary LaPook
  11. 2020-02-17 21:15 Bill Morris

17 Feb 2020 – 19 Feb 2020 : Two Bodies + Angle Between Them = Third LoP

  1. 2020-02-17 19:10 David Iwancio
  2. 2020-02-17 19:33 John D. Howard
  3. 2020-02-17 19:57 Frank Reed
  4. 2020-02-17 20:36 Tony Oz
  5. 2020-02-17 21:03 David Iwancio
  6. 2020-02-17 21:24 Tony Oz
  7. 2020-02-19 10:28 David Iwancio
  8. 2020-02-19 22:46 David Iwancio

20 Feb 2020 – 20 Feb 2020 : USNO

  1. 2020-02-20 02:32 Frank Maxwell

20 Feb 2020 – 20 Feb 2020 : Re: Usno

  1. 2020-02-20 05:27 Sean C
  2. 2020-02-20 22:39 Frank Maxwell

24 Feb 2020 – 24 Feb 2020 : Martelli Table Provenance

  1. 2020-02-24 15:07 Greg Rudzinski
  2. 2020-02-24 15:37 Robert Wyatt
  3. 2020-02-24 15:56 Greg Rudzinski
  4. 2020-02-24 16:12 Dave Walden
  5. 2020-02-24 18:18 Greg Rudzinski

19 Feb 2020 – 24 Feb 2020 : Artificial horizon: gyro vs bubble?

  1. 2020-02-19 09:05 Tony Oz
  2. 2020-02-19 18:36 David Pike
  3. 2020-02-20 08:36 Tony Oz
  4. 2020-02-20 17:15 David Pike
  5. 2020-02-23 22:28 Bill Morris
  6. 2020-02-24 09:36 Tony Oz
  7. 2020-02-24 22:07 David Pike

27 Feb 2020 – 27 Feb 2020 : Katherine Johnson

  1. 2020-02-27 19:37 David Pike
  2. 2020-02-27 20:17 Frank Reed
  3. 2020-02-27 21:39 Michael Cain

28 Feb 2020 – 28 Feb 2020 : Re: Katherine Johnson/Browser trick

  1. 2020-02-28 08:32 Herman Dekker

28 Feb 2020 – 28 Feb 2020 : Final posting: Ron Peel, DFC

  1. 2020-02-28 21:20 Michael Cain

29 Feb 2020 – 29 Feb 2020 : Japanese star globe

  1. 2020-02-29 15:55 Bob Goethe

29 Feb 2020 – 29 Feb 2020 : Russian mechanical navigation computer

  1. 2020-02-29 15:57 Bob Goethe

26 Feb 2020 – 02 Mar 2020 : Choosing right A-10: how to?

  1. 2020-02-26 15:58 Tony Oz
  2. 2020-02-27 06:55 Gary LaPook
  3. 2020-02-27 10:30 David Pike
  4. 2020-02-27 17:36 Tony Oz
  5. 2020-02-27 20:58 David Pike
  6. 2020-02-27 21:30 David Pike
  7. 2020-02-27 21:55 Bill Morris
  8. 2020-02-29 01:40 Gary LaPook
  9. 2020-03-01 20:01 David Pike
  10. 2020-03-02 08:13 Gary LaPook
  11. 2020-03-02 08:42 Tony Oz
  12. 2020-03-02 11:20 David Pike

01 Mar 2020 – 02 Mar 2020 : Re: [OT] Browser trick

  1. 2020-03-01 18:08 Wolfgang Köberer
  2. 2020-03-01 21:22 Frank Reed
  3. 2020-03-01 22:24 David Pike
  4. 2020-03-02 20:41 David C

01 Mar 2020 – 03 Mar 2020 : Sunrise Time Sight /Amplitude LOP

  1. 2020-03-01 21:49 Greg Rudzinski
  2. 2020-03-03 09:46 Brian Walton

03 Mar 2020 – 03 Mar 2020 : Archive of HMS Bounty fatefulvoyage.com

  1. 2020-03-03 20:10 Frank Reed
  2. 2020-03-03 20:40 David Pike

04 Mar 2020 – 04 Mar 2020 : Re: Air Almanac 2020 full pdf now available...

  1. 2020-03-04 01:42 Frank Reed

04 Mar 2020 – 04 Mar 2020 : Chronographs

  1. 2020-03-04 03:37 Jason Owens

01 Mar 2020 – 04 Mar 2020 : Today's sub-Sun point

  1. 2020-03-01 17:57 Frank Reed
  2. 2020-03-02 17:54 Paul Saffo
  3. 2020-03-03 00:40 David C
  4. 2020-03-03 03:36 Steve E. Bryant
  5. 2020-03-03 08:18 Tony Oz
  6. 2020-03-03 13:11 John D. Howard
  7. 2020-03-03 19:26 Steve E. Bryant
  8. 2020-03-04 02:34 Frank Reed
  9. 2020-03-04 06:29 Steve E. Bryant

03 Mar 2020 – 04 Mar 2020 : Longitudes greater than 180

  1. 2020-03-03 22:07 Paul Hirose
  2. 2020-03-04 03:24 Frank Reed
  3. 2020-03-04 07:44 Geoffrey Kolbe
  4. 2020-03-04 14:02 Robert VanderPol II

04 Mar 2020 – 04 Mar 2020 : Re: Google Maps and Street view

  1. 2020-03-04 16:56 Doug Faunt

02 Mar 2020 – 05 Mar 2020 : Chronograph

  1. 2020-03-02 22:41 Jason Owens
  2. 2020-03-04 13:46 Nick M
  3. 2020-03-04 14:20 Greg Rudzinski
  4. 2020-03-04 14:31 Greg Rudzinski
  5. 2020-03-04 15:16 Greg Rudzinski
  6. 2020-03-04 15:55 Dustin Baenen
  7. 2020-03-04 16:25 Michael Cain
  8. 2020-03-04 19:18 Greg Rudzinski
  9. 2020-03-04 20:28 Tony Oz
  10. 2020-03-04 21:21 Dustin Baenen
  11. 2020-03-05 01:57 Alan S
  12. 2020-03-05 03:46 David Iwancio
  13. 2020-03-05 09:14 Geoffrey Kolbe

04 Mar 2020 – 06 Mar 2020 : AH - sandwich (working concept)

  1. 2020-03-04 23:45 Igor S.
  2. 2020-03-05 07:06 Geoffrey Kolbe
  3. 2020-03-06 00:00 Igor S.

02 Mar 2020 – 07 Mar 2020 : Smart Phone CN

  1. 2020-03-02 14:12 Greg Rudzinski
  2. 2020-03-03 15:47 Greg Rudzinski
  3. 2020-03-05 02:52 Greg Rudzinski
  4. 2020-03-05 17:56 Ed Hlywa
  5. 2020-03-05 19:50 Andrés Ruiz
  6. 2020-03-05 19:51 Greg Rudzinski
  7. 2020-03-06 23:05 Greg Rudzinski
  8. 2020-03-07 03:25 Tom Sult
  9. 2020-03-07 10:55 Greg Rudzinski

08 Mar 2020 – 09 Mar 2020 : Custom Ex-Meridian Table for Slide Rule

  1. 2020-03-08 18:10 Greg Rudzinski
  2. 2020-03-09 02:07 Greg Rudzinski

09 Mar 2020 – 09 Mar 2020 : Lunars

  1. 2020-03-09 03:00 Chris Lamousin

09 Mar 2020 – 09 Mar 2020 : Custom Compact Sight Reduction Tables

  1. 2020-03-09 22:13 Greg Rudzinski

09 Mar 2020 – 11 Mar 2020 : Using the sun's direct and reflected image to determine a sextant's IE

  1. 2020-03-09 12:59 Ed Popko
  2. 2020-03-09 17:21 Greg Rudzinski
  3. 2020-03-09 19:26 Tony Oz
  4. 2020-03-09 19:39 Greg Rudzinski
  5. 2020-03-09 20:23 Ed Popko
  6. 2020-03-09 23:34 Greg Rudzinski
  7. 2020-03-10 06:03 Paul Hirose
  8. 2020-03-10 11:46 Ed Popko
  9. 2020-03-10 13:41 Tony Oz
  10. 2020-03-10 18:47 Tony Oz
  11. 2020-03-11 19:09 Antoine Couëtte

08 Mar 2020 – 13 Mar 2020 : Another SpaceX launch: photo celestial

  1. 2020-03-08 01:03 Frank Reed
  2. 2020-03-08 22:36 Frank Reed
  3. 2020-03-12 19:41 Frank Reed
  4. 2020-03-12 20:00 Doug Faunt
  5. 2020-03-13 01:54 Thomas Spidle

13 Mar 2020 – 13 Mar 2020 : Re: Captain Cook & celestial navigation

  1. 2020-03-13 16:29 Robin Stuart
  2. 2020-03-13 17:56 Roger W. Sinnott

13 Mar 2020 – 13 Mar 2020 : Time of Sunset

  1. 2020-03-13 07:48 David C
  2. 2020-03-13 21:26 David C

17 Mar 2020 – 17 Mar 2020 : GMT by Lunar Distance in Guatemala

  1. 2020-03-17 19:59 Frank Reed

12 Mar 2020 – 17 Mar 2020 : Re: GPS Anti Spoof: time to update...

  1. 2020-03-12 17:29 Frank Reed
  2. 2020-03-17 21:53 Frank Reed

09 Mar 2020 – 17 Mar 2020 : Kelvin Hughes sounding sextant !

  1. 2020-03-09 09:25 Frank Atkins
  2. 2020-03-11 23:37 Michael Bradley
  3. 2020-03-12 12:04 Michael Bradley
  4. 2020-03-12 12:09 Frank Atkins
  5. 2020-03-13 21:36 Paul Hirose
  6. 2020-03-13 23:28 Frank Atkins
  7. 2020-03-17 06:34 Bill Morris
  8. 2020-03-17 16:51 Ed Popko
  9. 2020-03-17 17:29 Jean-Philippe Planas
  10. 2020-03-17 22:30 Frank Atkins

17 Mar 2020 – 18 Mar 2020 : Royal Museums Greenwich closed

  1. 2020-03-17 19:55 Frank Reed
  2. 2020-03-17 20:38 Chris Willmes
  3. 2020-03-17 23:40 Peter Monta
  4. 2020-03-18 04:53 David C

17 Mar 2020 – 18 Mar 2020 : Grand Princess and Plague flag

  1. 2020-03-17 04:45 Paul Saffo
  2. 2020-03-17 18:47 Lu Abel
  3. 2020-03-17 20:02 David Pike
  4. 2020-03-17 20:12 Doug Faunt
  5. 2020-03-18 09:08 Jeremy C
  6. 2020-03-18 09:13 Jeremy C

19 Mar 2020 – 19 Mar 2020 : Navigate to this island

  1. 2020-03-19 19:20 Frank Reed
  2. 2020-03-19 20:08 Greg Rudzinski
  3. 2020-03-19 20:10 Greg Rudzinski
  4. 2020-03-19 20:15 Jackson McDonald
  5. 2020-03-19 20:20 James F Campbell
  6. 2020-03-19 20:24 Tony Oz
  7. 2020-03-19 20:39 Alexandre Eremenko

17 Mar 2020 – 20 Mar 2020 : H.O. 249: rounding Ho

  1. 2020-03-17 22:56 Igor S.
  2. 2020-03-18 07:36 Gary LaPook
  3. 2020-03-20 04:26 Michael Jones
  4. 2020-03-20 18:43 Paul Hirose

20 Mar 2020 – 20 Mar 2020 : (Almost) no shadow

  1. 2020-03-20 20:13 Bob Miorelli

09 Mar 2020 – 21 Mar 2020 : Calculating the time when GHA is equals zero?

  1. 2020-03-09 06:14 Steve E. Bryant
  2. 2020-03-09 18:59 Tony Oz
  3. 2020-03-11 06:23 Steve E. Bryant
  4. 2020-03-11 20:13 Tony Oz
  5. 2020-03-12 08:06 Jeremy C
  6. 2020-03-12 18:02 Tony Oz
  7. 2020-03-13 03:20 Steve E. Bryant
  8. 2020-03-13 12:22 Jeremy C
  9. 2020-03-13 19:37 Tony Oz
  10. 2020-03-13 22:58 Tony Oz
  11. 2020-03-14 04:35 Jeremy C
  12. 2020-03-14 06:18 Steve E. Bryant
  13. 2020-03-14 10:39 Jeremy C
  14. 2020-03-14 17:45 Steve E. Bryant
  15. 2020-03-14 19:07 Tony Oz
  16. 2020-03-14 20:21 Paul Hirose
  17. 2020-03-16 10:58 Tony Oz
  18. 2020-03-21 00:15 Steve E. Bryant
  19. 2020-03-21 07:08 Tony Oz

21 Mar 2020 – 21 Mar 2020 : Tabulate Lunar Distances by GHA

  1. 2020-03-21 19:13 Frank Reed
  2. 2020-03-21 19:56 Tony Oz
  3. 2020-03-21 20:03 Tony Oz

05 Mar 2020 – 21 Mar 2020 : Modern Bygrave Slide Rule Emulator

  1. 2020-03-05 20:45 Bill Ritchie
  2. 2020-03-06 19:06 Gary LaPook
  3. 2020-03-06 20:49 Greg Rudzinski
  4. 2020-03-07 07:52 Francis Upchurch
  5. 2020-03-07 09:24 Bob Crawley
  6. 2020-03-07 21:51 Francis Upchurch
  7. 2020-03-10 20:42 Gary LaPook
  8. 2020-03-18 18:53 Bill Ritchie
  9. 2020-03-19 10:52 Francis Upchurch
  10. 2020-03-21 23:05 Bill Ritchie

17 Feb 2020 – 22 Mar 2020 : Please help to identify a sextant

  1. 2020-02-17 21:46 Tony Oz
  2. 2020-02-17 23:22 David Pike
  3. 2020-02-18 13:31 David Pike
  4. 2020-02-18 15:27 Tony Oz
  5. 2020-02-18 16:03 Dave Walden
  6. 2020-02-18 16:56 Geoffrey Kolbe
  7. 2020-02-18 19:33 David Pike
  8. 2020-02-19 08:59 Tony Oz
  9. 2020-03-19 21:04 Tony Oz
  10. 2020-03-19 23:35 Igor S.
  11. 2020-03-20 01:07 Alexandre Eremenko
  12. 2020-03-20 08:45 Tony Oz
  13. 2020-03-20 21:15 David Pike
  14. 2020-03-21 09:57 David Pike
  15. 2020-03-21 20:20 Geoffrey Kolbe
  16. 2020-03-21 20:43 Tony Oz
  17. 2020-03-21 22:15 David Pike
  18. 2020-03-21 23:25 Peter Monta
  19. 2020-03-22 10:28 David Pike

22 Mar 2020 – 22 Mar 2020 : Using Photographs from the www

  1. 2020-03-22 13:37 David Pike

22 Mar 2020 – 23 Mar 2020 : Re: Longitude by Time Sight Using a Slide Rule

  1. 2020-03-22 22:32 Alan S
  2. 2020-03-22 23:19 Greg Rudzinski
  3. 2020-03-23 02:37 Alan S
  4. 2020-03-23 06:39 Francis Upchurch

13 Mar 2020 – 23 Mar 2020 : Index error vs. index correction

  1. 2020-03-13 21:38 Paul Hirose
  2. 2020-03-20 19:36 Antoine Couëtte
  3. 2020-03-21 13:04 Dave Walden
  4. 2020-03-21 20:22 Antoine Couëtte
  5. 2020-03-22 01:39 Gary LaPook
  6. 2020-03-22 13:49 Robin Stuart
  7. 2020-03-22 19:07 Antoine Couëtte
  8. 2020-03-22 19:17 Antoine Couëtte
  9. 2020-03-22 20:54 Robin Stuart
  10. 2020-03-23 16:27 Antoine Couëtte

25 Mar 2020 – 25 Mar 2020 : Happy Birthday, John Harrison

  1. 2020-03-25 03:24 Frank Reed

22 Mar 2020 – 25 Mar 2020 : A12 vs A8-A sextants

  1. 2020-03-22 13:51 Michael Jones
  2. 2020-03-22 19:02 Gary LaPook
  3. 2020-03-22 19:06 Gary LaPook
  4. 2020-03-22 21:06 Michael Jones
  5. 2020-03-23 13:42 Dustin Baenen
  6. 2020-03-23 19:33 Michael Jones
  7. 2020-03-23 21:43 Chris Caswell
  8. 2020-03-24 03:30 Gary LaPook
  9. 2020-03-25 15:44 Robert Swartz

25 Mar 2020 – 26 Mar 2020 : Bubble Sextants

  1. 2020-03-25 18:57 Robert Swartz
  2. 2020-03-26 00:37 Robert Swartz

23 Mar 2020 – 26 Mar 2020 : Maskelyne: Astronomer Royal

  1. 2020-03-23 16:33 Charles McElhill
  2. 2020-03-23 17:28 Francis Upchurch
  3. 2020-03-23 18:11 Jackson McDonald
  4. 2020-03-23 21:42 Frank Reed
  5. 2020-03-24 12:38 Charles McElhill
  6. 2020-03-24 21:16 David Pike
  7. 2020-03-25 04:20 Frank Reed
  8. 2020-03-25 16:53 Wolfgang Köberer
  9. 2020-03-25 20:54 Alexandre Eremenko
  10. 2020-03-25 21:33 Charles McElhill
  11. 2020-03-26 00:16 Doug Faunt
  12. 2020-03-26 06:13 Geoffrey Kolbe

26 Mar 2020 – 26 Mar 2020 : LAN calculations for GHA

  1. 2020-03-26 19:28 Adam Frolic
  2. 2020-03-26 22:54 Tony Oz

24 Mar 2020 – 27 Mar 2020 : GPS Anti Spoof Pro

  1. 2020-03-24 10:59 Ed Popko
  2. 2020-03-25 03:36 Frank Reed
  3. 2020-03-26 23:11 David Pike
  4. 2020-03-27 00:10 Frank Reed
  5. 2020-03-27 06:24 David C
  6. 2020-03-27 06:28 David C
  7. 2020-03-27 06:41 David C
  8. 2020-03-27 08:40 David Pike

30 Mar 2020 – 30 Mar 2020 : Air Almanac and AP 2020 available

  1. 2020-03-30 13:35 Alexander Duytschaever

29 Mar 2020 – 30 Mar 2020 : Re: d correction

  1. 2020-03-29 14:05 Barrie Heald
  2. 2020-03-29 16:25 Tony Oz
  3. 2020-03-30 02:33 Barrie Heald
  4. 2020-03-30 09:11 Tony Oz
  5. 2020-03-30 20:59 Alan S
  6. 2020-03-30 21:38 Tony Oz

31 Mar 2020 – 31 Mar 2020 : Bagnold Sun Compass

  1. 2020-03-31 04:00 Michael Jones
  2. 2020-03-31 06:16 David C

31 Mar 2020 – 31 Mar 2020 : Sextant problem gone

  1. 2020-03-31 12:09 Paul Werner

19 Mar 2020 – 31 Mar 2020 : Navigation webinars

  1. 2020-03-19 21:36 David Pike
  2. 2020-03-31 13:29 David Pike

22 Mar 2020 – 01 Apr 2020 : Sun-Venus distance observation

  1. 2020-03-22 20:26 Tony Oz
  2. 2020-03-23 11:58 Tony Oz
  3. 2020-03-27 10:58 Igor S.
  4. 2020-03-27 19:35 Tony Oz
  5. 2020-03-27 19:46 Herman Dekker
  6. 2020-03-29 21:33 Igor S.
  7. 2020-03-29 21:56 Igor S.
  8. 2020-03-31 22:29 Frank Reed
  9. 2020-04-01 19:18 Steve E. Bryant

02 Apr 2020 – 03 Apr 2020 : Traditional Bygrave, Modern Bygrave and Linear slide rule emulators.

  1. 2020-04-02 10:40 Bill Ritchie
  2. 2020-04-02 19:53 Alan S
  3. 2020-04-03 17:07 Francis Upchurch

03 Apr 2020 – 04 Apr 2020 : Star tracker article, interesting graphics

  1. 2020-04-03 17:14 Doug Faunt
  2. 2020-04-04 09:31 Antoine Couëtte

31 Mar 2020 – 04 Apr 2020 : Lunars: optimal angular distances

  1. 2020-03-31 18:55 Steve E. Bryant
  2. 2020-03-31 22:19 Frank Reed
  3. 2020-04-02 04:48 Sean C
  4. 2020-04-04 09:38 Steve E. Bryant

05 Apr 2020 – 05 Apr 2020 : Sirius: spin-off of the "Venus in daylight"

  1. 2020-04-05 00:36 Tony Oz

04 Apr 2020 – 05 Apr 2020 : Star Tracker - Space Shuttle and the Inertial Upper Stage.

  1. 2020-04-04 18:53 Derrick Young
  2. 2020-04-05 05:16 Sean C

30 Mar 2020 – 05 Apr 2020 : Nautical Almanac App

  1. 2020-03-30 21:44 David C
  2. 2020-04-03 09:21 Andrés Ruiz
  3. 2020-04-03 21:49 David C
  4. 2020-04-03 22:41 David C
  5. 2020-04-03 22:51 David C
  6. 2020-04-04 09:40 Andrés Ruiz
  7. 2020-04-04 21:35 David C
  8. 2020-04-05 07:21 Herman Dekker
  9. 2020-04-05 17:18 Andrés Ruiz
  10. 2020-04-05 21:39 Herman Dekker
  11. 2020-04-05 22:29 David C

05 Apr 2020 – 05 Apr 2020 : Re: Curve fitting for noon Sun

  1. 2020-04-05 23:49 Antoine Couëtte

05 Apr 2020 – 06 Apr 2020 : Bausch and Lomb 5854 sextant

  1. 2020-04-05 12:00 Michael Nolan
  2. 2020-04-06 11:30 Chris Caswell

05 Apr 2020 – 06 Apr 2020 : Dutch Nautical Atlas/Almanac 1584

  1. 2020-04-05 07:02 Bob Crawley
  2. 2020-04-05 13:34 Huub Robroek
  3. 2020-04-05 22:41 Frank Reed
  4. 2020-04-06 17:50 Bob Crawley

06 Apr 2020 – 06 Apr 2020 : A strange set of Venus LoPs.

  1. 2020-04-06 09:29 Tony Oz
  2. 2020-04-06 16:35 Tony Oz
  3. 2020-04-06 17:14 Antoine Couëtte
  4. 2020-04-06 18:42 Tony Oz
  5. 2020-04-06 23:26 Mike Burkes

06 Apr 2020 – 07 Apr 2020 : Meridian Passage Table, Daily Pages

  1. 2020-04-06 21:27 Steve E. Bryant
  2. 2020-04-07 08:30 Herman Dekker

07 Apr 2020 – 07 Apr 2020 : Stellarium Star Filtering.?

  1. 2020-04-07 14:00 Marty Lyons
  2. 2020-04-07 18:03 Sean C

31 Mar 2020 – 08 Apr 2020 : Celestial in the Age of Sail, April 7-9, online

  1. 2020-03-31 18:17 Frank Reed
  2. 2020-04-01 01:41 Sam Lyness
  3. 2020-04-01 09:11 Herman Dekker
  4. 2020-04-01 20:32 David C
  5. 2020-04-01 21:21 Frank Reed
  6. 2020-04-02 19:59 Alan S
  7. 2020-04-08 02:07 David C

06 Apr 2020 – 08 Apr 2020 : Re: Celestial in the Age of Sail, April 13-15, online

  1. 2020-04-06 20:24 Frank Reed
  2. 2020-04-08 03:55 Frank Reed

07 Apr 2020 – 08 Apr 2020 : NavList-donated Amelia Earhart sign

  1. 2020-04-07 05:54 Frank Reed
  2. 2020-04-07 19:31 Gary LaPook
  3. 2020-04-08 04:57 Steve E. Bryant

31 Mar 2020 – 08 Apr 2020 : Minimum geocentric Saturn-Mars apparent angular Distance

  1. 2020-03-31 07:07 Antoine Couëtte
  2. 2020-04-01 09:04 Sean C
  3. 2020-04-02 07:35 Antoine Couëtte
  4. 2020-04-02 08:13 Sean C
  5. 2020-04-02 16:58 Dave Walden
  6. 2020-04-03 06:56 Sean C
  7. 2020-04-03 12:06 Bill Ritchie
  8. 2020-04-08 16:25 Antoine Couëtte

09 Apr 2020 – 09 Apr 2020 : STARPILOT TI-89(Titanium) calculator program update.

  1. 2020-04-09 17:50 Herman Dekker

27 Mar 2020 – 09 Apr 2020 : Venus in daylight

  1. 2020-03-27 22:19 Frank Reed
  2. 2020-03-28 01:53 Frank Reed
  3. 2020-03-28 02:39 David C
  4. 2020-03-28 03:27 Frank Reed
  5. 2020-03-28 18:57 Tony Oz
  6. 2020-03-28 19:54 Frank Reed
  7. 2020-03-28 20:14 Tony Oz
  8. 2020-03-28 23:08 David C
  9. 2020-03-28 23:17 David C
  10. 2020-03-29 00:41 Greg Rudzinski
  11. 2020-03-29 04:40 Sean C
  12. 2020-03-29 09:46 David Pike
  13. 2020-03-29 13:21 Tony Oz
  14. 2020-03-29 16:50 Doug Faunt
  15. 2020-03-29 16:52 Doug Faunt
  16. 2020-03-29 21:33 David C
  17. 2020-03-31 04:38 David C
  18. 2020-03-31 20:47 Frank Reed
  19. 2020-03-31 21:30 David C
  20. 2020-03-31 21:36 David C
  21. 2020-03-31 21:54 Frank Reed
  22. 2020-04-01 05:02 David C
  23. 2020-04-01 05:23 Frank Reed
  24. 2020-04-01 06:38 David C
  25. 2020-04-04 03:40 Peter Monta
  26. 2020-04-04 21:40 Igor S.
  27. 2020-04-04 22:38 Frank Reed
  28. 2020-04-05 13:54 David Pike
  29. 2020-04-05 22:19 David C
  30. 2020-04-05 22:26 Frank Reed
  31. 2020-04-07 00:13 David C
  32. 2020-04-07 04:19 Frank Reed
  33. 2020-04-07 12:44 Tibor Miseta
  34. 2020-04-07 20:36 David Pike
  35. 2020-04-08 02:22 David C
  36. 2020-04-08 07:05 David C
  37. 2020-04-08 14:41 David Pike
  38. 2020-04-08 16:14 Frank Reed
  39. 2020-04-08 17:01 Doug Faunt
  40. 2020-04-08 21:12 David Pike
  41. 2020-04-08 22:35 Chris Willmes
  42. 2020-04-09 04:23 Frank Reed
  43. 2020-04-09 10:50 Adrian F
  44. 2020-04-09 18:52 David Pike

09 Apr 2020 – 10 Apr 2020 : 1583 Dutch Almanac and cross staff

  1. 2020-04-09 18:51 Bob Crawley
  2. 2020-04-09 19:49 Jürgen Hoefeld
  3. 2020-04-10 06:31 Bob Crawley
  4. 2020-04-10 09:35 Huub Robroek

12 Apr 2020 – 12 Apr 2020 : 2020-04-12: 59 Earth revolutions around the Sun - since the first man orbited the Earth!

  1. 2020-04-12 11:49 Tony Oz
  2. 2020-04-12 19:35 James F Campbell

11 Apr 2020 – 13 Apr 2020 : Referring to Eds Daves & Davids for example

  1. 2020-04-11 17:07 David Pike
  2. 2020-04-13 21:35 Dustin Baenen

13 Apr 2020 – 13 Apr 2020 : Hughes, Dreisonstok and dec~lat

  1. 2020-04-13 21:58 David C

11 Apr 2020 – 14 Apr 2020 : NavList Resources

  1. 2020-04-11 14:07 Steve E. Bryant
  2. 2020-04-14 14:38 Greg Rudzinski

08 Apr 2020 – 15 Apr 2020 : Weems and Plath Celestial Slide Rule

  1. 2020-04-08 17:52 Ed J.
  2. 2020-04-08 20:39 David Pike
  3. 2020-04-09 23:51 Tracy Shrier
  4. 2020-04-10 09:04 David Pike
  5. 2020-04-10 14:51 Ed Popko
  6. 2020-04-10 20:29 Alan S
  7. 2020-04-11 16:52 David Pike
  8. 2020-04-11 19:55 Ed J.
  9. 2020-04-12 09:18 David Pike
  10. 2020-04-12 10:21 David Pike
  11. 2020-04-14 20:56 Tracy Shrier
  12. 2020-04-14 22:45 Dave Walden
  13. 2020-04-15 03:51 Alan S

08 Apr 2020 – 18 Apr 2020 : NavList social sessions LIVE today

  1. 2020-04-08 06:34 Frank Reed
  2. 2020-04-08 22:21 Frank Reed
  3. 2020-04-15 01:09 Steve E. Bryant
  4. 2020-04-15 01:50 David C
  5. 2020-04-18 18:13 Frank Reed
  6. 2020-04-18 19:29 David Pike

18 Apr 2020 – 18 Apr 2020 : Precepts - or how to make things more complicated than they really are

  1. 2020-04-18 21:44 David C

19 Apr 2020 – 19 Apr 2020 : HO 200 Aquino

  1. 2020-04-19 02:46 David C
  2. 2020-04-19 06:35 Frank Reed
  3. 2020-04-19 22:11 David C

19 Apr 2020 – 19 Apr 2020 : Online Workshop: Lunars, May 14-16

  1. 2020-04-19 18:22 Frank Reed
  2. 2020-04-19 21:08 Hewitt Schlereth
  3. 2020-04-19 22:20 Manuel Cruz

20 Apr 2020 – 20 Apr 2020 : HO 200 Copyright Infringement

  1. 2020-04-20 03:51 David C
  2. 2020-04-20 05:05 David C

10 Apr 2020 – 20 Apr 2020 : Venus mer-pass for Lat, Sun time sight for Lon.

  1. 2020-04-10 22:06 Tony Oz
  2. 2020-04-11 00:52 David C
  3. 2020-04-11 09:11 Antoine Couëtte
  4. 2020-04-11 19:20 Antoine Couëtte
  5. 2020-04-11 20:26 Tony Oz
  6. 2020-04-11 22:51 Tony Oz
  7. 2020-04-11 22:56 Antoine Couëtte
  8. 2020-04-12 01:11 Dave Walden
  9. 2020-04-12 02:04 Peter Hakel
  10. 2020-04-12 02:43 Dave Walden
  11. 2020-04-12 03:38 Dave Walden
  12. 2020-04-12 10:45 Tony Oz
  13. 2020-04-13 14:35 Dave Walden
  14. 2020-04-13 17:13 Antoine Couëtte
  15. 2020-04-14 14:22 Antoine Couëtte
  16. 2020-04-14 14:41 Tony Oz
  17. 2020-04-15 07:40 Tony Oz
  18. 2020-04-15 14:55 Antoine Couëtte
  19. 2020-04-15 16:15 Tony Oz
  20. 2020-04-15 17:12 Antoine Couëtte
  21. 2020-04-16 12:59 Dave Walden
  22. 2020-04-18 18:51 Antoine Couëtte
  23. 2020-04-18 21:00 Tony Oz
  24. 2020-04-19 14:52 Bill Ritchie
  25. 2020-04-19 18:40 Antoine Couëtte
  26. 2020-04-20 02:23 Antoine Couëtte
  27. 2020-04-20 09:03 Tony Oz

21 Apr 2020 – 21 Apr 2020 : Ogura's Short Method for Altitude (aka Nories' A_K table)

  1. 2020-04-21 07:01 David C

11 Apr 2020 – 21 Apr 2020 : Anti-spoof app

  1. 2020-04-11 00:47 David C
  2. 2020-04-11 03:09 Jim Rives
  3. 2020-04-11 21:07 David C
  4. 2020-04-12 00:14 David C
  5. 2020-04-12 01:45 Jim Rives
  6. 2020-04-12 02:45 David C
  7. 2020-04-12 07:21 Herman Dekker
  8. 2020-04-14 22:54 David C
  9. 2020-04-18 17:49 Frank Reed
  10. 2020-04-21 22:05 David C

22 Apr 2020 – 22 Apr 2020 : Re: Usno

  1. 2020-04-22 06:57 Sean C

20 Apr 2020 – 22 Apr 2020 : False horizon under the Moon, under the Sun too?

  1. 2020-04-20 11:58 Tony Oz
  2. 2020-04-20 17:15 Frank Reed
  3. 2020-04-20 18:58 Gary LaPook
  4. 2020-04-20 22:50 Frank Reed
  5. 2020-04-20 23:17 Michael Cain
  6. 2020-04-21 08:26 Tony Oz
  7. 2020-04-21 11:33 Tony Oz
  8. 2020-04-21 20:55 Gary LaPook
  9. 2020-04-22 12:42 Tony Oz

22 Apr 2020 – 22 Apr 2020 : Will anyone ever find Shackleton's lost ship?

  1. 2020-04-22 14:04 Robin Stuart

24 Apr 2020 – 24 Apr 2020 : Paper: Geometry of Elliptical Probability Contours...

  1. 2020-04-24 16:07 David Pike
  2. 2020-04-24 19:21 Andrés Ruiz
  3. 2020-04-24 19:56 Gary LaPook

25 Apr 2020 – 25 Apr 2020 : Change of assumed position terminology

  1. 2020-04-25 01:56 David C

24 Apr 2020 – 25 Apr 2020 : Buffy, the Moon is wrong...

  1. 2020-04-24 19:50 Frank Reed
  2. 2020-04-25 12:15 Robin Stuart

21 Apr 2020 – 26 Apr 2020 : April 28: Venus maximum brilliance

  1. 2020-04-21 12:37 Tony Oz
  2. 2020-04-21 21:59 Frank Reed
  3. 2020-04-26 06:01 Frank Reed
  4. 2020-04-26 11:21 Fred Hebard
  5. 2020-04-26 15:56 Geoffrey Kolbe

22 Apr 2020 – 26 Apr 2020 : Sign of d in HO249

  1. 2020-04-22 14:20 Philippe Posth
  2. 2020-04-22 21:45 David Pike
  3. 2020-04-23 14:57 Tony Oz
  4. 2020-04-23 17:06 David Pike
  5. 2020-04-23 19:08 David Pike
  6. 2020-04-23 19:08 David Pike
  7. 2020-04-23 21:36 Philippe Posth
  8. 2020-04-23 22:23 David C
  9. 2020-04-24 00:37 Gary LaPook
  10. 2020-04-24 04:52 Sean C
  11. 2020-04-24 07:07 David Pike
  12. 2020-04-24 07:31 David Iwancio
  13. 2020-04-24 19:51 David Pike
  14. 2020-04-25 02:20 David Iwancio
  15. 2020-04-25 12:58 David Pike
  16. 2020-04-25 13:05 Robert VanderPol II
  17. 2020-04-26 12:40 David Pike
  18. 2020-04-26 17:56 David Pike

26 Apr 2020 – 26 Apr 2020 : Hyatt's Celestial Coordinator

  1. 2020-04-26 13:49 Dave Walden
  2. 2020-04-26 17:37 Steve E. Bryant
  3. 2020-04-26 20:30 Jürgen Hoefeld
  4. 2020-04-26 20:54 Frank Reed

24 Apr 2020 – 26 Apr 2020 : WWV is audible again (here)

  1. 2020-04-24 19:01 Tony Oz
  2. 2020-04-24 19:54 Gary LaPook
  3. 2020-04-24 20:34 Peter Monta
  4. 2020-04-25 08:40 Tony Oz
  5. 2020-04-26 21:19 Tony Oz

27 Apr 2020 – 27 Apr 2020 : Meteorite over Iraqi Kurdistan in 1888

  1. 2020-04-27 16:00 Frank Reed

25 Apr 2020 – 28 Apr 2020 : Re: A12 vs A8-A sextants

  1. 2020-04-25 18:16 Geoffrey Kolbe
  2. 2020-04-26 13:07 David Pike
  3. 2020-04-27 17:21 Paul Hirose
  4. 2020-04-28 06:48 Geoffrey Kolbe
  5. 2020-04-28 10:41 David Pike

26 Apr 2020 – 28 Apr 2020 : Calibrating a Bris with a Davis mk15 sextant

  1. 2020-04-26 14:55 Alexander Duytschaever
  2. 2020-04-26 17:55 Greg Rudzinski
  3. 2020-04-27 17:47 Frank Reed
  4. 2020-04-27 21:08 Greg Rudzinski
  5. 2020-04-28 13:05 Greg Rudzinski
  6. 2020-04-28 15:00 Alexander Duytschaever

27 Apr 2020 – 30 Apr 2020 : Lockdown Escape (Madness?)

  1. 2020-04-27 08:53 Michael Bradley
  2. 2020-04-27 13:08 Greg Rudzinski
  3. 2020-04-27 13:34 Michael Bradley
  4. 2020-04-27 15:21 David Iwancio
  5. 2020-04-27 17:44 Michael Bradley
  6. 2020-04-28 00:53 David C
  7. 2020-04-29 03:26 David C
  8. 2020-04-29 10:20 Michael Bradley
  9. 2020-04-29 16:16 Greg Rudzinski
  10. 2020-04-29 22:07 Tibor Miseta
  11. 2020-04-29 23:40 David C
  12. 2020-04-30 04:50 David C
  13. 2020-04-30 11:34 Greg Rudzinski
  14. 2020-04-30 14:26 Tony Oz
  15. 2020-04-30 21:43 Gary LaPook
  16. 2020-04-30 22:28 David C

19 Apr 2020 – 02 May 2020 : Online Workshop: Modern Celestial Navigation, May 4-6

  1. 2020-04-19 18:16 Frank Reed
  2. 2020-05-02 17:31 Frank Reed

02 May 2020 – 02 May 2020 : Bermuda sailing races cancelled

  1. 2020-05-02 17:53 Frank Reed
  2. 2020-05-02 19:28 Doug Faunt
  3. 2020-05-02 21:21 Frank Reed
  4. 2020-05-02 22:14 Doug Faunt

30 Apr 2020 – 03 May 2020 : Calculators "old technology"

  1. 2020-04-30 17:50 Geoffrey Kolbe
  2. 2020-04-30 17:57 Greg Rudzinski
  3. 2020-04-30 18:21 Frank Reed
  4. 2020-04-30 19:09 Roger W. Sinnott
  5. 2020-04-30 20:55 Frank Reed
  6. 2020-04-30 22:15 David C
  7. 2020-05-01 01:42 Alan S
  8. 2020-05-01 01:48 Alan S
  9. 2020-05-01 02:45 Frank Reed
  10. 2020-05-01 18:16 Robin Stuart
  11. 2020-05-01 19:40 David Iwancio
  12. 2020-05-02 03:00 Frank Reed
  13. 2020-05-03 15:18 Robin Stuart

02 May 2020 – 04 May 2020 : NavList Hams

  1. 2020-05-02 11:20 Ed Popko
  2. 2020-05-02 16:47 Robert VanderPol II
  3. 2020-05-02 17:27 Frank Reed
  4. 2020-05-02 18:27 Manuel Cruz
  5. 2020-05-03 07:38 David Smith
  6. 2020-05-03 12:40 Greg Licfi
  7. 2020-05-03 14:42 Derrick Young
  8. 2020-05-03 16:22 Ed Hlywa
  9. 2020-05-03 16:31 Sean Johnston
  10. 2020-05-03 20:18 Jeremy C
  11. 2020-05-04 00:14 Doug Faunt
  12. 2020-05-04 02:12 Jeremy C
  13. 2020-05-04 13:39 Robin Stuart

26 Apr 2020 – 04 May 2020 : Radio from the middle of nowhere

  1. 2020-04-26 23:07 Frank Reed
  2. 2020-04-29 12:10 Ed Popko
  3. 2020-04-29 17:42 Jim Rives
  4. 2020-04-29 17:47 Frank Reed
  5. 2020-04-29 18:15 Bruce Cutting
  6. 2020-04-29 18:34 John Carbone
  7. 2020-04-29 18:49 Robert VanderPol II
  8. 2020-04-29 19:10 Lars Bergman
  9. 2020-04-29 20:25 Michael Jones
  10. 2020-04-29 20:35 James F Campbell
  11. 2020-04-29 21:30 Bill Lionheart
  12. 2020-04-29 21:45 Drago Simac
  13. 2020-04-29 22:33 Gary LaPook
  14. 2020-04-29 23:59 David C
  15. 2020-04-30 03:29 Doug Faunt
  16. 2020-04-30 05:07 Gary LaPook
  17. 2020-04-30 05:16 Gary LaPook
  18. 2020-04-30 06:26 Geoffrey Kolbe
  19. 2020-04-30 08:24 David Pike
  20. 2020-04-30 14:44 Don Seltzer
  21. 2020-04-30 17:43 James Hofmann
  22. 2020-04-30 18:51 Doug Faunt
  23. 2020-05-01 16:24 Frank Reed
  24. 2020-05-01 17:40 Doug Faunt
  25. 2020-05-01 19:03 Don Seltzer
  26. 2020-05-01 19:35 Doug Faunt
  27. 2020-05-01 23:40 Peter Monta
  28. 2020-05-03 14:00 Paul Saffo
  29. 2020-05-03 19:23 Marcel Tschudin
  30. 2020-05-03 19:41 Paul Saffo
  31. 2020-05-04 18:10 Paul Saffo

05 May 2020 – 05 May 2020 : Air Almanac for 2020

  1. 2020-05-05 19:56 Gary LaPook

04 May 2020 – 05 May 2020 : Celestial Navigation in the British Royal Navy

  1. 2020-05-04 08:51 David Smith
  2. 2020-05-04 14:22 Michael Bradley
  3. 2020-05-04 20:23 Alan S
  4. 2020-05-05 07:11 Brian Walton
  5. 2020-05-05 07:52 David Smith
  6. 2020-05-05 07:55 David Pike
  7. 2020-05-05 21:23 Michael Cain

29 Apr 2020 – 06 May 2020 : Hav-Doniol re-visited

  1. 2020-04-29 22:13 David C
  2. 2020-04-30 00:56 Greg Rudzinski
  3. 2020-05-04 22:18 Michael Bradley
  4. 2020-05-06 13:46 Ed Popko

06 May 2020 – 06 May 2020 : Celestial Navigation Towers

  1. 2020-05-06 15:12 Bill Lionheart

01 May 2020 – 06 May 2020 : Celestial Navigation licensing exams

  1. 2020-05-01 16:27 Frank Reed
  2. 2020-05-01 17:19 Doug Faunt
  3. 2020-05-01 19:53 Gary LaPook
  4. 2020-05-01 19:54 Gary LaPook
  5. 2020-05-02 01:47 Doug Faunt
  6. 2020-05-05 19:25 Igor S.
  7. 2020-05-05 22:37 Doug Faunt
  8. 2020-05-06 14:50 Andrés Ruiz
  9. 2020-05-06 19:30 Igor S.
  10. 2020-05-06 22:46 Doug Faunt

07 May 2020 – 07 May 2020 : Re: A-12 Experiences

  1. 2020-05-07 04:15 Robert Swartz

03 May 2020 – 07 May 2020 : Smart and Shearme Position Line Tables

  1. 2020-05-03 00:08 David C
  2. 2020-05-03 09:43 David C
  3. 2020-05-03 14:37 Robin Stuart
  4. 2020-05-03 16:22 Lars Bergman
  5. 2020-05-03 21:35 David Pike
  6. 2020-05-03 21:38 David C
  7. 2020-05-03 21:53 David C
  8. 2020-05-03 23:45 David C
  9. 2020-05-04 09:43 Lars Bergman
  10. 2020-05-04 19:36 Lars Bergman
  11. 2020-05-04 20:50 Lars Bergman
  12. 2020-05-05 10:25 David Pike
  13. 2020-05-05 10:52 David Pike
  14. 2020-05-05 13:41 Robin Stuart
  15. 2020-05-05 17:40 David Pike
  16. 2020-05-05 18:05 Lars Bergman
  17. 2020-05-05 18:13 Lars Bergman
  18. 2020-05-05 18:59 Lars Bergman
  19. 2020-05-05 20:50 David Pike
  20. 2020-05-06 04:25 David C
  21. 2020-05-06 16:36 David Pike
  22. 2020-05-06 22:30 David C
  23. 2020-05-07 08:43 David Pike

03 May 2020 – 07 May 2020 : 2020-05-03 Sun-Venus session

  1. 2020-05-03 21:25 Tony Oz
  2. 2020-05-07 21:43 Antoine Couëtte

07 May 2020 – 08 May 2020 : Height Correction

  1. 2020-05-07 03:19 Robert Swartz
  2. 2020-05-07 05:43 Robert Swartz
  3. 2020-05-07 12:52 Greg Rudzinski
  4. 2020-05-07 15:33 Robert Swartz
  5. 2020-05-08 12:48 Greg Rudzinski
  6. 2020-05-08 20:49 Paul Hirose

09 May 2020 – 09 May 2020 : Congratulations on the Victory Day!

  1. 2020-05-09 09:51 Tony Oz

10 Apr 2020 – 10 May 2020 : Re: Air Almanac 2020 full pdf now available...

  1. 2020-04-10 07:57 Phil F
  2. 2020-05-10 03:44 Willy Unger

10 May 2020 – 10 May 2020 : Lunars and Traditional CN online workshops

  1. 2020-05-10 18:39 Frank Reed

11 May 2020 – 11 May 2020 : 75th Anniversary of first Aries polar flight

  1. 2020-05-11 09:22 David Pike

11 May 2020 – 11 May 2020 : BBC - Scientists explain magnetic pole's wanderings

  1. 2020-05-11 17:09 Ed Popko

11 May 2020 – 11 May 2020 : A short explanatory CN video

  1. 2020-05-11 23:37 Igor S.

11 May 2020 – 12 May 2020 : My Marine E6M ( A marine version of the E6B )

  1. 2020-05-11 01:21 Greg Licfi
  2. 2020-05-12 02:53 Tracy Shrier
  3. 2020-05-12 13:42 Greg B

11 May 2020 – 12 May 2020 : Non-graphical way to solve a wind triangle

  1. 2020-05-11 01:51 Greg B
  2. 2020-05-11 05:56 Andrés Ruiz
  3. 2020-05-11 16:36 Joseph Rheubeck
  4. 2020-05-12 03:39 Frank Reed
  5. 2020-05-12 07:27 Andrés Ruiz
  6. 2020-05-12 07:46 Gary LaPook
  7. 2020-05-12 07:51 Gary LaPook
  8. 2020-05-12 18:44 Gary LaPook

13 May 2020 – 13 May 2020 : Excellent talk by David Pike

  1. 2020-05-13 07:08 Bob Crawley

30 Apr 2020 – 13 May 2020 : Navlist

  1. 2020-04-30 11:55 Dave Walden
  2. 2020-05-02 12:44 Greg Hill
  3. 2020-05-02 17:23 Frank Reed
  4. 2020-05-02 19:14 Andrés Ruiz
  5. 2020-05-12 14:54 Geoffrey Butt
  6. 2020-05-13 09:01 Bill Lionheart

13 May 2020 – 13 May 2020 : Re: Traditional navigation by slide rule

  1. 2020-05-13 01:44 Alan S
  2. 2020-05-13 19:37 Bob Goethe

14 May 2020 – 14 May 2020 : Intercept Method or Marcq St. Hilaire

  1. 2020-05-14 01:24 Steve E. Bryant
  2. 2020-05-14 02:51 Steve E. Bryant
  3. 2020-05-14 08:35 David C
  4. 2020-05-14 12:27 Greg Rudzinski
  5. 2020-05-14 16:52 Antoine Couëtte

12 May 2020 – 15 May 2020 : Beginning celestial navigation method

  1. 2020-05-12 10:37 Grace O'Farrell
  2. 2020-05-13 04:44 Sean C
  3. 2020-05-13 07:13 Andrés Ruiz
  4. 2020-05-13 13:57 David Pike
  5. 2020-05-13 15:52 Grace O'Farrell
  6. 2020-05-13 16:24 Grace O'Farrell
  7. 2020-05-13 16:43 Grace O'Farrell
  8. 2020-05-13 17:08 Grace O'Farrell
  9. 2020-05-13 20:27 David Pike
  10. 2020-05-14 14:41 Grace O'Farrell
  11. 2020-05-15 02:29 Alan S
  12. 2020-05-15 09:24 David Pike
  13. 2020-05-15 11:13 Grace O'Farrell
  14. 2020-05-15 18:50 Grace O'Farrell
  15. 2020-05-15 23:04 Alan S

17 May 2020 – 17 May 2020 : Learning time sights and lunars online.

  1. 2020-05-17 21:55 Doug MacPherson

15 May 2020 – 18 May 2020 : Position from two azimuths

  1. 2020-05-15 18:22 Dave Walden
  2. 2020-05-16 07:51 Peter Hakel
  3. 2020-05-16 09:57 David Pike
  4. 2020-05-16 10:58 Andrés Ruiz
  5. 2020-05-16 13:43 Dave Walden
  6. 2020-05-16 13:45 Dave Walden
  7. 2020-05-16 14:01 Antoine Couëtte
  8. 2020-05-16 20:48 David Pike
  9. 2020-05-16 21:15 Peter Hakel
  10. 2020-05-17 09:42 Andrés Ruiz
  11. 2020-05-17 10:42 Antoine Couëtte
  12. 2020-05-18 01:37 Antoine Couëtte

17 May 2020 – 18 May 2020 : Davis Mk 25 prismatic monocular upgrade

  1. 2020-05-17 13:04 Bill Lionheart
  2. 2020-05-18 18:54 Peter Monta

07 May 2020 – 18 May 2020 : A Lancaster Navigator's Logs and Charts Analysed

  1. 2020-05-07 19:24 David Pike
  2. 2020-05-11 19:41 David Pike
  3. 2020-05-12 23:29 Frank Reed
  4. 2020-05-13 21:28 David Pike
  5. 2020-05-13 22:13 Doug Faunt
  6. 2020-05-18 20:25 David Pike

19 May 2020 – 19 May 2020 : Kollsman Type 106C U.S. Navy MK IX Aircraft Compass

  1. 2020-05-19 05:23 Pyndan Wulffe
  2. 2020-05-19 18:26 Gary LaPook

19 May 2020 – 19 May 2020 : Upcoming Online Celestial Navigation Workshops

  1. 2020-05-19 23:46 Frank Reed

20 May 2020 – 20 May 2020 : AN5854-1 Bubble Sextant For Sale

  1. 2020-05-20 16:53 Robert Swartz

13 May 2020 – 21 May 2020 : Equal Azimuth Lines

  1. 2020-05-13 07:40 Antoine Couëtte
  2. 2020-05-13 17:04 Andrés Ruiz
  3. 2020-05-13 20:19 David Iwancio
  4. 2020-05-13 20:23 Antoine Couëtte
  5. 2020-05-14 01:52 David Iwancio
  6. 2020-05-14 15:39 Antoine Couëtte
  7. 2020-05-15 08:57 Antoine Couëtte
  8. 2020-05-15 09:21 Andrés Ruiz
  9. 2020-05-15 16:29 Wolfgang Köberer
  10. 2020-05-15 16:33 Bill Lionheart
  11. 2020-05-15 20:40 Antoine Couëtte
  12. 2020-05-16 14:08 Robin Stuart
  13. 2020-05-21 18:28 Andrés Ruiz

07 May 2020 – 22 May 2020 : Position from altitude and azimuth.

  1. 2020-05-07 17:02 Dave Walden
  2. 2020-05-08 04:16 Peter Hakel
  3. 2020-05-08 04:49 David C
  4. 2020-05-08 10:26 Andrés Ruiz
  5. 2020-05-08 11:55 Dave Walden
  6. 2020-05-08 12:30 Antoine Couëtte
  7. 2020-05-08 20:16 Lars Bergman
  8. 2020-05-09 05:13 Antoine Couëtte
  9. 2020-05-09 07:47 Bill Lionheart
  10. 2020-05-09 10:07 Lars Bergman
  11. 2020-05-09 11:39 Antoine Couëtte
  12. 2020-05-09 12:13 Dave Walden
  13. 2020-05-09 12:34 Dave Walden
  14. 2020-05-09 13:41 Dave Walden
  15. 2020-05-09 21:35 Lars Bergman
  16. 2020-05-09 21:40 Lars Bergman
  17. 2020-05-09 23:18 Bill Lionheart
  18. 2020-05-10 16:23 Antoine Couëtte
  19. 2020-05-10 18:33 Frank Reed
  20. 2020-05-10 23:26 Peter Hakel
  21. 2020-05-11 03:08 Dave Walden
  22. 2020-05-11 06:01 Antoine Couëtte
  23. 2020-05-11 06:36 Andrés Ruiz
  24. 2020-05-11 06:52 Sean C
  25. 2020-05-11 07:01 Bill Lionheart
  26. 2020-05-11 09:01 Andrés Ruiz
  27. 2020-05-11 09:19 Antoine Couëtte
  28. 2020-05-11 10:34 Antoine Couëtte
  29. 2020-05-11 23:42 Dave Walden
  30. 2020-05-12 00:21 Peter Hakel
  31. 2020-05-12 09:55 Geoffrey Kolbe
  32. 2020-05-12 11:56 Lars Bergman
  33. 2020-05-12 18:11 Bill Lionheart
  34. 2020-05-12 19:48 Antoine Couëtte
  35. 2020-05-13 00:19 Peter Hakel
  36. 2020-05-13 02:56 Antoine Couëtte
  37. 2020-05-13 09:14 Bill Lionheart
  38. 2020-05-13 14:33 Antoine Couëtte
  39. 2020-05-13 17:22 Andrés Ruiz
  40. 2020-05-13 20:42 Antoine Couëtte
  41. 2020-05-15 06:31 Andrés Ruiz
  42. 2020-05-15 06:53 Andrés Ruiz
  43. 2020-05-15 14:51 Bill Lionheart
  44. 2020-05-16 13:48 Robin Stuart
  45. 2020-05-16 16:59 Bill Lionheart
  46. 2020-05-17 10:17 Andrés Ruiz
  47. 2020-05-17 12:17 Robin Stuart
  48. 2020-05-18 08:09 Andrés Ruiz
  49. 2020-05-18 09:59 Bill Lionheart
  50. 2020-05-18 21:11 Frank Reed
  51. 2020-05-19 06:58 Frank Reed
  52. 2020-05-19 08:00 Bill Lionheart
  53. 2020-05-19 11:13 Bill Lionheart
  54. 2020-05-19 13:19 Bill Lionheart
  55. 2020-05-19 15:04 Frank Reed
  56. 2020-05-19 16:04 Bill Lionheart
  57. 2020-05-19 19:14 Andrés Ruiz
  58. 2020-05-19 22:18 Dave Walden
  59. 2020-05-19 23:30 David Pike
  60. 2020-05-20 06:18 Bill Lionheart
  61. 2020-05-20 06:30 David Pike
  62. 2020-05-20 07:55 Andrés Ruiz
  63. 2020-05-20 16:20 David Pike
  64. 2020-05-20 18:50 Bill Lionheart
  65. 2020-05-20 18:54 Frank Reed
  66. 2020-05-20 19:43 David Pike
  67. 2020-05-21 15:47 Robin Stuart
  68. 2020-05-21 16:25 Bill Lionheart
  69. 2020-05-21 17:46 David Pike
  70. 2020-05-22 18:12 Robin Stuart

20 May 2020 – 22 May 2020 : Re: Lunar distance parallactic retardation

  1. 2020-05-20 05:20 Paul Hirose
  2. 2020-05-22 19:10 Antoine Couëtte

24 May 2020 – 24 May 2020 : ADMIN: The 21st Century Awaits...

  1. 2020-05-24 00:15 Frank Reed
  2. 2020-05-24 00:48 Tom Sult
  3. 2020-05-24 11:15 Bill Lionheart
  4. 2020-05-24 13:18 David Pike

23 May 2020 – 24 May 2020 : Sestrel sextant thoughts?

  1. 2020-05-23 03:28 Ned Lloyd
  2. 2020-05-23 04:42 Alexandre Eremenko
  3. 2020-05-23 09:16 Michael Bradley
  4. 2020-05-23 11:17 Antoine Couëtte
  5. 2020-05-23 18:40 Ned Lloyd
  6. 2020-05-24 01:51 Ned Lloyd
  7. 2020-05-24 02:19 Alexandre Eremenko
  8. 2020-05-24 07:18 Antoine Couëtte
  9. 2020-05-24 15:47 Alexandre Eremenko

23 May 2020 – 25 May 2020 : Janet Taylor octant

  1. 2020-05-23 19:30 Ned Lloyd
  2. 2020-05-24 01:58 Doug Faunt
  3. 2020-05-24 04:43 Frank Reed
  4. 2020-05-24 13:23 Ned Lloyd
  5. 2020-05-25 07:21 Wolfgang Köberer

26 May 2020 – 28 May 2020 : Lunar distance method of Chauvenet

  1. 2020-05-26 04:59 Paul Hirose
  2. 2020-05-26 11:37 Roger W. Sinnott
  3. 2020-05-26 19:07 Paul Hirose
  4. 2020-05-28 09:39 Antoine Couëtte

22 May 2020 – 29 May 2020 : Sights with just azimuth

  1. 2020-05-22 19:06 Bill Lionheart
  2. 2020-05-23 08:45 David Pike
  3. 2020-05-23 09:57 Andrés Ruiz
  4. 2020-05-23 10:07 Andrés Ruiz
  5. 2020-05-29 07:47 David Pike

24 May 2020 – 29 May 2020 : Parallax in azimuth

  1. 2020-05-24 16:49 Dave Walden
  2. 2020-05-24 20:30 David Pike
  3. 2020-05-24 20:34 Antoine Couëtte
  4. 2020-05-25 03:17 Frank Reed
  5. 2020-05-25 08:13 Peter Monta
  6. 2020-05-25 16:12 Andrés Ruiz
  7. 2020-05-25 18:48 Robin Stuart
  8. 2020-05-28 15:29 Robin Stuart
  9. 2020-05-29 06:35 Antoine Couëtte
  10. 2020-05-29 19:20 Paul Hirose
  11. 2020-05-29 20:27 Robin Stuart

30 May 2020 – 30 May 2020 : Re: Some pop culture sextants

  1. 2020-05-30 10:31 Sean C

30 May 2020 – 30 May 2020 : Automated celnav in the news

  1. 2020-05-30 15:30 Bill Lionheart
  2. 2020-05-30 19:10 David Pike

30 May 2020 – 03 Jun 2020 : E.O.T. for 2020

  1. 2020-05-30 18:17 Bob Goethe
  2. 2020-05-30 19:14 Frank Reed
  3. 2020-05-30 20:36 Bob Goethe
  4. 2020-05-31 18:06 Ron Jones
  5. 2020-06-01 02:31 Peter Hakel
  6. 2020-06-02 14:46 Antoine Couëtte
  7. 2020-06-03 04:30 Frank Reed

31 May 2020 – 03 Jun 2020 : Navigation system failure

  1. 2020-05-31 12:33 Bob Goethe
  2. 2020-06-01 21:41 Bill Lionheart
  3. 2020-06-03 20:49 Frank Reed

03 Jun 2020 – 03 Jun 2020 : USNO Nav. Star Chart how Old?

  1. 2020-06-03 20:36 Herman Dekker
  2. 2020-06-03 21:17 Frank Reed

06 Jun 2020 – 07 Jun 2020 : Mark III plastic sextant

  1. 2020-06-06 21:07 S. Velasquez
  2. 2020-06-06 21:18 Greg Rudzinski
  3. 2020-06-07 00:44 Peter Monta

05 Jun 2020 – 09 Jun 2020 : Celestial in the thin air!

  1. 2020-06-05 04:34 S. Velasquez
  2. 2020-06-05 07:01 Andrés Ruiz
  3. 2020-06-05 14:57 Michael Jones
  4. 2020-06-05 15:03 Michael Jones
  5. 2020-06-05 18:22 Gary LaPook
  6. 2020-06-05 19:18 S. Velasquez
  7. 2020-06-05 20:27 Frank Reed
  8. 2020-06-06 08:36 Bob Crawley
  9. 2020-06-09 09:04 Alexander Duytschaever
  10. 2020-06-09 09:09 Alexander Duytschaever
  11. 2020-06-09 19:10 Frank Reed

09 Jun 2020 – 09 Jun 2020 : Wild legends of Nathaniel Bowditch

  1. 2020-06-09 20:22 Frank Reed

09 Jun 2020 – 09 Jun 2020 : Navwords crossword (1975)

  1. 2020-06-09 20:26 Frank Reed

10 Jun 2020 – 10 Jun 2020 : Ww2 A-8 octant

  1. 2020-06-10 17:35 Rich K
  2. 2020-06-10 18:25 Gary LaPook

12 Jun 2020 – 12 Jun 2020 : EOT Will Change Sign In Thirteen Hours Time

  1. 2020-06-12 03:20 David C
  2. 2020-06-12 06:17 Andrés Ruiz

13 Jun 2020 – 13 Jun 2020 : Re: A-8A Aircraft Sextant

  1. 2020-06-13 01:15 Mike Prokop

09 Jun 2020 – 16 Jun 2020 : Free webinar GNSS Supercorrelation

  1. 2020-06-09 18:02 David Pike
  2. 2020-06-11 02:40 Peter Monta
  3. 2020-06-11 18:30 David Pike
  4. 2020-06-16 09:36 David Pike

14 Jun 2020 – 16 Jun 2020 : Celestaire Astra IIIB backlash

  1. 2020-06-14 17:30 Douglas Stephen
  2. 2020-06-14 21:23 Peter Monta
  3. 2020-06-15 13:01 Douglas Stephen
  4. 2020-06-15 15:11 Geoffrey Kolbe
  5. 2020-06-15 19:48 Paul Hirose
  6. 2020-06-16 19:24 Douglas Stephen

16 Jun 2020 – 18 Jun 2020 : Comedy on the Greenwich Meridian

  1. 2020-06-16 02:41 Frank Reed
  2. 2020-06-16 04:09 Francis Upchurch
  3. 2020-06-16 04:33 Doug Faunt
  4. 2020-06-16 04:40 Peter Monta
  5. 2020-06-16 04:51 Doug Faunt
  6. 2020-06-16 05:48 David C
  7. 2020-06-16 18:35 David Fleming
  8. 2020-06-18 14:36 Bill Ritchie

17 Jun 2020 – 20 Jun 2020 : Sextant handle electric system, out of service

  1. 2020-06-17 22:51 Manuel Acosta
  2. 2020-06-18 12:42 Diego Melas
  3. 2020-06-19 04:02 Manuel Acosta
  4. 2020-06-20 00:24 Alan S

20 Jun 2020 – 20 Jun 2020 : Online Celestial Navigation Workshops

  1. 2020-06-20 20:51 Frank Reed

17 Jun 2020 – 20 Jun 2020 : My sextant repair

  1. 2020-06-17 16:06 John Fosh
  2. 2020-06-18 09:40 David Pike
  3. 2020-06-20 05:29 Bill Morris
  4. 2020-06-20 18:56 Geoffrey Kolbe
  5. 2020-06-20 21:51 Bill Morris

21 Jun 2020 – 21 Jun 2020 : Winter Solstice and a Moon Eclipse

  1. 2020-06-21 01:33 David C
  2. 2020-06-21 06:49 David C
  3. 2020-06-21 06:51 David C

21 Jun 2020 – 22 Jun 2020 : Sun's Gender

  1. 2020-06-21 07:08 David C
  2. 2020-06-21 15:14 Bill Lionheart
  3. 2020-06-21 17:52 Doug Faunt
  4. 2020-06-21 20:41 Sean C
  5. 2020-06-22 02:19 Frank Reed
  6. 2020-06-22 08:03 Geoffrey Kolbe

23 Jun 2020 – 23 Jun 2020 : Re: Sun's Gender (United Kingdom 1835)

  1. 2020-06-23 03:39 Doug MacPherson

22 Jun 2020 – 23 Jun 2020 : Hughes & Son's Sextant - General Info

  1. 2020-06-22 14:39 Adrian Bevan
  2. 2020-06-23 22:26 Bill Morris

24 Jun 2020 – 24 Jun 2020 : Bermuda Race: Exciting finish this year

  1. 2020-06-24 00:47 Frank Reed

23 Jun 2020 – 24 Jun 2020 : Ball Drop Sextant

  1. 2020-06-23 16:21 Vicente Botella
  2. 2020-06-23 19:46 Jürgen Hoefeld
  3. 2020-06-23 20:55 Dave Walden
  4. 2020-06-24 08:17 Vicente Botella

26 May 2020 – 24 Jun 2020 : Time and place

  1. 2020-05-26 01:10 Dave Walden
  2. 2020-05-28 19:04 Lars Bergman
  3. 2020-05-29 08:03 Lars Bergman
  4. 2020-06-20 19:14 Dave Walden
  5. 2020-06-23 14:39 Lars Bergman
  6. 2020-06-23 20:50 Dave Walden
  7. 2020-06-24 08:40 Lars Bergman

24 Jun 2020 – 24 Jun 2020 : Corporal Sadler SAS: Desert Navigation

  1. 2020-06-24 16:17 Francis Upchurch
  2. 2020-06-24 17:04 Doug Faunt
  3. 2020-06-24 18:08 Bill Lionheart

24 Jun 2020 – 24 Jun 2020 : Fun stuff referring to the Prime Meridian

  1. 2020-06-24 21:21 Doug Faunt

10 Jun 2020 – 25 Jun 2020 : Ex-Meridian Sight using Inmans

  1. 2020-06-10 10:01 David C
  2. 2020-06-10 17:27 Greg Rudzinski
  3. 2020-06-10 19:45 David C
  4. 2020-06-10 19:54 Frank Reed
  5. 2020-06-10 20:08 David C
  6. 2020-06-10 20:30 Greg Rudzinski
  7. 2020-06-11 04:54 David C
  8. 2020-06-14 05:34 David C
  9. 2020-06-14 14:16 Greg Rudzinski
  10. 2020-06-24 19:39 Mike Burkes
  11. 2020-06-25 07:20 Bill Lionheart

25 Jun 2020 – 25 Jun 2020 : Re: Navigation Library for sale (K Gebhart)

  1. 2020-06-25 07:26 Sean C

21 Jun 2020 – 25 Jun 2020 : Webinar – When GNSS fails, what will you do? Marrinav!

  1. 2020-06-21 19:29 David Pike
  2. 2020-06-25 10:56 David Pike
  3. 2020-06-25 14:34 David Pike

25 Jun 2020 – 25 Jun 2020 : Ares at Aries

  1. 2020-06-25 22:26 Frank Reed

26 Jun 2020 – 26 Jun 2020 : Flat Earth?

  1. 2020-06-26 06:37 Bob Crawley

26 Jun 2020 – 26 Jun 2020 : Re: Beginning celestial navigation method

  1. 2020-06-26 16:10 Al Stewart

25 Jun 2020 – 28 Jun 2020 : Re: A-10 Sextant Maintenance Manual

  1. 2020-06-25 15:12 Brian Holmes
  2. 2020-06-26 07:40 Gary LaPook
  3. 2020-06-26 07:48 Gary LaPook
  4. 2020-06-28 05:01 Bill Morris

25 Jun 2020 – 28 Jun 2020 : Re: Sextant Collimation Error

  1. 2020-06-25 16:34 David Pike
  2. 2020-06-25 23:14 David Pike
  3. 2020-06-26 03:35 Peter Monta
  4. 2020-06-26 06:21 Frank Reed
  5. 2020-06-26 13:54 Greg Rudzinski
  6. 2020-06-27 10:31 David Pike
  7. 2020-06-28 02:36 Peter Monta
  8. 2020-06-28 04:52 Frank Reed
  9. 2020-06-28 15:13 David Pike
  10. 2020-06-28 16:47 David Pike

28 Jun 2020 – 01 Jul 2020 : A ramble on "new improved methods"

  1. 2020-06-28 04:52 David C
  2. 2020-06-28 13:02 Greg Rudzinski
  3. 2020-06-28 20:12 David C
  4. 2020-06-29 12:40 Greg Rudzinski
  5. 2020-06-29 21:02 David C
  6. 2020-06-30 03:35 Brian Walton
  7. 2020-06-30 14:52 Greg Rudzinski
  8. 2020-06-30 20:43 David C
  9. 2020-06-30 21:35 Frank Reed
  10. 2020-06-30 22:25 David C
  11. 2020-07-01 05:26 Brian Walton
  12. 2020-07-01 12:17 Greg Rudzinski
  13. 2020-07-01 21:05 Brian Walton

01 Jul 2020 – 04 Jul 2020 : Timex Iron Man Watch=kaput

  1. 2020-07-01 22:08 Bruce J. Pennino
  2. 2020-07-02 14:49 Greg Rudzinski
  3. 2020-07-02 15:43 Lu Abel
  4. 2020-07-02 15:44 Greg Rudzinski
  5. 2020-07-02 17:16 Alan S
  6. 2020-07-02 19:38 Lu Abel
  7. 2020-07-02 22:12 Robert VanderPol II
  8. 2020-07-02 22:51 Alan S
  9. 2020-07-02 23:25 Greg Rudzinski
  10. 2020-07-03 03:06 Lu Abel
  11. 2020-07-03 08:46 Bill Lionheart
  12. 2020-07-03 19:57 Doug Faunt
  13. 2020-07-04 02:47 Alan S
  14. 2020-07-04 13:11 Charles McElhill

04 Jul 2020 – 04 Jul 2020 : Lunar Eclipse non-event

  1. 2020-07-04 22:27 Frank Reed

11 Jul 2020 – 11 Jul 2020 : Bausch & Lomb A8-A Sextant For Sale

  1. 2020-07-11 03:12 Robert Swartz

03 Jul 2020 – 11 Jul 2020 : Online Meetings Sunday

  1. 2020-07-03 03:12 Frank Reed
  2. 2020-07-04 23:41 Frank Reed
  3. 2020-07-05 04:02 David C
  4. 2020-07-05 04:49 Sean C
  5. 2020-07-05 04:50 Frank Reed
  6. 2020-07-05 20:25 Frank Reed
  7. 2020-07-05 20:56 David Pike
  8. 2020-07-06 01:49 Frank Reed
  9. 2020-07-06 02:44 Doug Faunt
  10. 2020-07-06 03:20 David C
  11. 2020-07-08 21:00 David Pike
  12. 2020-07-11 17:00 Frank Reed

11 Jul 2020 – 12 Jul 2020 : Trouble solving for spherical triangle

  1. 2020-07-11 23:36 Hahns Burg
  2. 2020-07-12 03:43 Frank Reed
  3. 2020-07-12 12:21 Hahns Burg

12 Jul 2020 – 12 Jul 2020 : Re: Harold Gatty's Kamal

  1. 2020-07-12 13:28 Dale Lichtblau

09 Jul 2020 – 12 Jul 2020 : Sun over Abu Simbel

  1. 2020-07-09 14:59 Frank Reed
  2. 2020-07-12 13:58 Dale Lichtblau

12 Jul 2020 – 12 Jul 2020 : Spare parts for Mark IX sextant

  1. 2020-07-12 07:01 Dean Tetley
  2. 2020-07-12 23:54 Hewitt Schlereth

13 Jul 2020 – 13 Jul 2020 : First Surface Mirror Modification for Davis Artificial Horizon

  1. 2020-07-13 00:21 Greg Rudzinski

06 Jul 2020 – 13 Jul 2020 : Longitude by unequal altitudes - Brent

  1. 2020-07-06 03:14 David C
  2. 2020-07-06 09:42 Lars Bergman
  3. 2020-07-07 02:53 David C
  4. 2020-07-07 04:30 Frank Reed
  5. 2020-07-07 04:53 David C
  6. 2020-07-07 15:08 Lars Bergman
  7. 2020-07-13 05:30 David C

12 Jul 2020 – 14 Jul 2020 : Looking for Aviation sextant to buy - prefer periscopic pendulum design.

  1. 2020-07-12 03:00 Tom Cordell
  2. 2020-07-12 18:05 Ken Gebhart
  3. 2020-07-12 21:10 Robert Swartz
  4. 2020-07-14 22:21 Tom Cordell

16 Jul 2020 – 16 Jul 2020 : Astron relocated

  1. 2020-07-16 21:36 Bill Ritchie
  2. 2020-07-16 21:48 Frank Reed

14 Jul 2020 – 16 Jul 2020 : M.F. Maury and the progress of history

  1. 2020-07-14 06:33 Frank Reed
  2. 2020-07-14 06:55 Gary LaPook
  3. 2020-07-14 07:47 Sean C
  4. 2020-07-14 19:30 Dale Lichtblau
  5. 2020-07-14 20:28 Francis Upchurch
  6. 2020-07-14 22:45 Hewitt Schlereth
  7. 2020-07-15 06:23 Michael Bradley
  8. 2020-07-15 20:06 Bill B
  9. 2020-07-16 20:28 Hewitt Schlereth
  10. 2020-07-16 22:08 Alan S

02 Jul 2020 – 16 Jul 2020 : Venus in daylight this month

  1. 2020-07-02 22:50 Frank Reed
  2. 2020-07-13 19:11 David C
  3. 2020-07-14 07:49 David Pike
  4. 2020-07-14 12:45 Greg Rudzinski
  5. 2020-07-14 16:30 Frank Reed
  6. 2020-07-14 17:07 Greg Rudzinski
  7. 2020-07-14 18:29 David Pike
  8. 2020-07-15 04:56 David C
  9. 2020-07-15 05:14 David C
  10. 2020-07-15 07:32 Frank Reed
  11. 2020-07-15 18:34 Doug Faunt
  12. 2020-07-15 21:15 David C
  13. 2020-07-15 21:44 Dustin Baenen
  14. 2020-07-16 23:45 Rafael C. Caruso

17 Jul 2020 – 17 Jul 2020 : WEBINAR: Demystifying Contact Tracing Apps

  1. 2020-07-17 13:36 David Pike

17 Jul 2020 – 17 Jul 2020 : Re: Latitude by two stars observed simultaneously

  1. 2020-07-17 17:25 Frank DeWald

16 Jul 2020 – 17 Jul 2020 : Slide Rule Emulators relocated

  1. 2020-07-16 21:20 Bill Ritchie
  2. 2020-07-17 17:44 Gary LaPook

12 Jul 2020 – 17 Jul 2020 : Re: NavList Hams

  1. 2020-07-12 13:41 Dale Lichtblau
  2. 2020-07-12 23:54 Doug Faunt
  3. 2020-07-14 18:48 Dale Lichtblau
  4. 2020-07-14 20:51 Doug Faunt
  5. 2020-07-17 11:00 Ed Popko
  6. 2020-07-17 17:46 Gary LaPook

17 Jul 2020 – 17 Jul 2020 : Re: C Plath sextant, missing part

  1. 2020-07-17 18:04 Frank DeWald

18 Jul 2020 – 18 Jul 2020 : Backstaff washed up on the beach

  1. 2020-07-18 04:55 Josh Paterson
  2. 2020-07-18 05:28 Frank Reed
  3. 2020-07-18 12:41 Greg Rudzinski
  4. 2020-07-18 13:03 Greg Rudzinski

17 Jul 2020 – 18 Jul 2020 : RAF O6a Compass

  1. 2020-07-17 12:01 David Pike
  2. 2020-07-18 14:22 Peter Smith
  3. 2020-07-18 16:12 William Edward Henry
  4. 2020-07-18 20:49 David Pike
  5. 2020-07-18 21:21 David Pike

17 Jul 2020 – 19 Jul 2020 : Moon Venus Camera Lunar

  1. 2020-07-17 12:54 Greg Rudzinski
  2. 2020-07-17 15:28 Greg Rudzinski
  3. 2020-07-18 18:34 Hewitt Schlereth
  4. 2020-07-19 00:19 Doug MacPherson

19 Jul 2020 – 19 Jul 2020 : Sextant practice on the space station

  1. 2020-07-19 00:40 Frank Reed
  2. 2020-07-19 04:30 Sean C
  3. 2020-07-19 06:13 Frank Reed
  4. 2020-07-19 12:02 Tibor Miseta

19 Jul 2020 – 19 Jul 2020 : Re: A second Chinese sextant?

  1. 2020-07-19 21:54 Robert Goldberg

19 Jul 2020 – 19 Jul 2020 : Online "Office Hours" in one hour

  1. 2020-07-19 22:02 Frank Reed

09 Jul 2020 – 20 Jul 2020 : Plot Sheet Generator

  1. 2020-07-09 18:08 James F Campbell
  2. 2020-07-09 22:08 Sean C
  3. 2020-07-10 21:29 Dale Lichtblau
  4. 2020-07-17 10:45 Ed Popko
  5. 2020-07-17 19:14 James F Campbell
  6. 2020-07-20 13:38 Andrés Ruiz

21 Jul 2020 – 21 Jul 2020 : NavList Hams: Longitude by Wire

  1. 2020-07-21 01:18 Dale Lichtblau

19 Jul 2020 – 21 Jul 2020 : Dip Short DSLR Camera CN Sun

  1. 2020-07-19 14:36 Greg Rudzinski
  2. 2020-07-19 21:23 Frank Reed
  3. 2020-07-20 22:26 David C
  4. 2020-07-21 02:30 David C
  5. 2020-07-21 03:01 David C
  6. 2020-07-21 03:03 Frank Reed

21 Jul 2020 – 21 Jul 2020 : Online Workshops

  1. 2020-07-21 21:34 Frank Reed

12 Jul 2020 – 22 Jul 2020 : Comet Neowise

  1. 2020-07-12 20:37 Frank Reed
  2. 2020-07-20 23:56 David Pike
  3. 2020-07-21 00:48 Greg Rudzinski
  4. 2020-07-21 01:14 Bruce Cutting
  5. 2020-07-21 09:03 David Pike
  6. 2020-07-21 10:05 David Pike
  7. 2020-07-22 01:02 Greg Rudzinski

22 Jul 2020 – 22 Jul 2020 : A method for darkening glass

  1. 2020-07-22 08:35 Igor S.

21 Jul 2020 – 24 Jul 2020 : Essay: Navigating by the Heavens...

  1. 2020-07-21 21:35 Frank Reed
  2. 2020-07-22 17:37 Frank Reed
  3. 2020-07-22 18:37 Greg Rudzinski
  4. 2020-07-23 23:09 Andy Schell
  5. 2020-07-24 12:34 Greg Rudzinski
  6. 2020-07-24 20:29 Greg Rudzinski

25 Jul 2020 – 25 Jul 2020 : Re: Making an artificial horizon

  1. 2020-07-25 02:54 Alan S
  2. 2020-07-25 06:12 Gary LaPook

18 Jul 2020 – 25 Jul 2020 : More Cocked Hats

  1. 2020-07-18 07:59 Bill Lionheart
  2. 2020-07-19 07:48 David Pike
  3. 2020-07-19 08:42 Sivan Toledo
  4. 2020-07-19 09:58 Bill Lionheart
  5. 2020-07-25 20:31 George Kaplan

02 Jul 2020 – 26 Jul 2020 : Burton's Nautical Tables

  1. 2020-07-02 20:16 Lars Bergman
  2. 2020-07-02 21:15 William Edward Henry
  3. 2020-07-02 22:04 David C
  4. 2020-07-26 03:07 David C

25 Jul 2020 – 26 Jul 2020 : One of Hewitt Schlereth's books just got plugged on YouTube.

  1. 2020-07-25 03:17 Robert VanderPol II
  2. 2020-07-26 19:57 Hewitt Schlereth

26 Jul 2020 – 26 Jul 2020 : "Office Hours" in two hours

  1. 2020-07-26 20:51 Frank Reed

27 Jul 2020 – 27 Jul 2020 : Venus in daylight this week

  1. 2020-07-27 04:18 Frank Reed
  2. 2020-07-27 06:10 David C
  3. 2020-07-27 20:16 David C

28 Jul 2020 – 28 Jul 2020 : Excel Almanac

  1. 2020-07-28 03:33 Sean C

28 Jul 2020 – 28 Jul 2020 : Info on Bubble Sextants

  1. 2020-07-28 03:44 Robert Swartz

27 Jul 2020 – 28 Jul 2020 : Kids and the planets

  1. 2020-07-27 12:01 David Pike
  2. 2020-07-27 21:19 David C
  3. 2020-07-28 02:51 David C
  4. 2020-07-28 04:20 Bruce J. Pennino
  5. 2020-07-28 07:27 David C

28 Jul 2020 – 28 Jul 2020 : Longitude by Equal Altitudes

  1. 2020-07-28 12:25 Robin Stuart

20 Jul 2020 – 28 Jul 2020 : Oblate or Prolate...?

  1. 2020-07-20 20:04 Dale Lichtblau
  2. 2020-07-28 20:45 Dale Lichtblau

19 Jul 2020 – 29 Jul 2020 : Hybrid artificial horizon

  1. 2020-07-19 18:43 Peter Monta
  2. 2020-07-20 02:27 Greg Rudzinski
  3. 2020-07-20 10:07 Wolfgang Hasper
  4. 2020-07-20 10:10 Gary LaPook
  5. 2020-07-20 11:39 Dave Walden
  6. 2020-07-20 16:14 Greg Rudzinski
  7. 2020-07-23 18:22 Alan S
  8. 2020-07-23 20:37 Greg Rudzinski
  9. 2020-07-23 21:17 Alan S
  10. 2020-07-24 19:07 Peter Monta
  11. 2020-07-24 22:26 Greg Rudzinski
  12. 2020-07-25 13:30 Greg Rudzinski
  13. 2020-07-25 17:48 Peter Monta
  14. 2020-07-25 17:59 Peter Monta
  15. 2020-07-25 19:50 Greg Rudzinski
  16. 2020-07-25 20:49 Greg Rudzinski
  17. 2020-07-25 21:28 Fred Hebard
  18. 2020-07-26 03:31 David C
  19. 2020-07-26 05:02 David C
  20. 2020-07-26 18:40 Peter Monta
  21. 2020-07-26 21:26 David C
  22. 2020-07-27 02:29 Peter Monta
  23. 2020-07-27 11:34 David Pike
  24. 2020-07-28 12:55 Robin Stuart
  25. 2020-07-29 03:24 Paul Dolkas
  26. 2020-07-29 14:13 Robin Stuart

30 Jul 2020 – 30 Jul 2020 : Maskelyne and lunar distance

  1. 2020-07-30 15:58 Ducruy Jacques

30 Jul 2020 – 30 Jul 2020 : Plotting sheets

  1. 2020-07-30 00:58 Thomas J. Murphy
  2. 2020-07-30 21:44 Greg Rudzinski

27 Jul 2020 – 31 Jul 2020 : The History of Celestial Navigation (2020)

  1. 2020-07-27 09:14 Igor S.
  2. 2020-07-28 00:32 Dale Lichtblau
  3. 2020-07-28 07:24 Bill Lionheart
  4. 2020-07-28 08:27 Geoffrey Kolbe
  5. 2020-07-28 15:52 Bill Lionheart
  6. 2020-07-28 19:41 James F Campbell
  7. 2020-07-28 20:48 Dale Lichtblau
  8. 2020-07-29 12:16 Bill Lionheart
  9. 2020-07-29 13:37 Richard B. Langley
  10. 2020-07-30 02:08 George Kaplan
  11. 2020-07-30 06:47 Frank Reed
  12. 2020-07-30 06:59 Frank Reed
  13. 2020-07-31 00:42 George Kaplan
  14. 2020-07-31 05:46 David C

31 Jul 2020 – 31 Jul 2020 : Re: Air Almanac 2020 full pdf now available...

  1. 2020-07-31 16:12 Richard Holmes

31 Jul 2020 – 31 Jul 2020 : Amazon to launch 3000 communication satellites

  1. 2020-07-31 19:58 David Pike
  2. 2020-07-31 21:05 Jackson McDonald

31 Jul 2020 – 01 Aug 2020 : Celestial Navigation Exercises and Plotting Sheets

  1. 2020-07-31 12:07 Simon T
  2. 2020-07-31 19:53 Greg Rudzinski
  3. 2020-07-31 20:07 Dustin Baenen
  4. 2020-07-31 21:49 Igor S.
  5. 2020-07-31 23:34 Michael Cain
  6. 2020-08-01 00:03 Sean C

02 Aug 2020 – 02 Aug 2020 : Pre Hurricane Lunar

  1. 2020-08-02 06:17 Greg Rudzinski

02 Aug 2020 – 02 Aug 2020 : SpaceX views from an old British aircraft

  1. 2020-08-02 19:12 Frank Reed

02 Aug 2020 – 03 Aug 2020 : RCC's log archive

  1. 2020-08-02 11:35 Bill Lionheart
  2. 2020-08-03 05:49 David C

03 Aug 2020 – 04 Aug 2020 : Bobby Schenk's Golden Sextant

  1. 2020-08-03 14:40 Luc Van den Borre
  2. 2020-08-04 18:26 Dale Lichtblau

04 Aug 2020 – 04 Aug 2020 : Nautical Almanac 1786

  1. 2020-08-04 19:52 Frank Reed

01 Aug 2020 – 05 Aug 2020 : Expensive toys

  1. 2020-08-01 23:03 Frank Reed
  2. 2020-08-01 23:34 Tom Sult
  3. 2020-08-03 21:11 Hewitt Schlereth
  4. 2020-08-04 10:48 David Pike
  5. 2020-08-04 18:20 Frank Reed
  6. 2020-08-05 09:12 Bill Morris

07 Aug 2020 – 07 Aug 2020 : Royal Geographical Society talk: 8 Oct 2020

  1. 2020-08-07 07:13 Bob Crawley

13 Jul 2020 – 07 Aug 2020 : Re: Bob Goethe's Mark 2 Navigators slide rule, test drive comparisons.

  1. 2020-07-13 18:34 Gary LaPook
  2. 2020-07-14 20:27 Alan S
  3. 2020-07-18 16:09 Sean Johnston
  4. 2020-07-18 16:56 Alan S
  5. 2020-08-07 11:45 Murray Felstead

02 Aug 2020 – 08 Aug 2020 : NavList/ReedNavigation.com "Office Hours" tomorrow

  1. 2020-08-02 03:32 Frank Reed
  2. 2020-08-08 23:27 Frank Reed

09 Aug 2020 – 09 Aug 2020 : Looking for Kollsman MA-2 sextant in working order

  1. 2020-08-09 01:39 Chuck Killian

07 Aug 2020 – 09 Aug 2020 : Latitude by photo

  1. 2020-08-07 06:18 Frank Reed
  2. 2020-08-07 13:42 Greg Rudzinski
  3. 2020-08-07 17:15 Robin Stuart
  4. 2020-08-07 20:16 Frank Reed
  5. 2020-08-07 23:02 Greg Rudzinski
  6. 2020-08-08 00:30 Frank Reed
  7. 2020-08-08 00:46 Greg Rudzinski
  8. 2020-08-08 06:10 Paul Saffo
  9. 2020-08-08 18:11 Paul Saffo
  10. 2020-08-08 18:21 Frank Reed
  11. 2020-08-09 00:03 Paul Saffo
  12. 2020-08-09 02:23 Frank Reed
  13. 2020-08-09 02:45 Greg Rudzinski

09 Aug 2020 – 10 Aug 2020 : Navigation Tables

  1. 2020-08-09 14:46 Paul Bedel
  2. 2020-08-09 20:01 David C
  3. 2020-08-09 21:06 Frank Reed
  4. 2020-08-10 03:10 David C
  5. 2020-08-10 08:32 Paul Bedel

09 Aug 2020 – 10 Aug 2020 : Quantum Sensors in Navigation - Free Webinar Monday 10th August

  1. 2020-08-09 14:03 David Pike
  2. 2020-08-10 19:30 Bill Lionheart
  3. 2020-08-10 21:29 David Pike

10 Aug 2020 – 10 Aug 2020 : Moon Rise - I'm Missing Something

  1. 2020-08-10 17:33 Bruce J. Pennino
  2. 2020-08-10 18:54 Frank Reed
  3. 2020-08-10 21:38 Greg Rudzinski
  4. 2020-08-10 21:51 David Pike
  5. 2020-08-10 23:01 David C

12 Aug 2020 – 12 Aug 2020 : Bausch and Lomb AN5854-1 Reconditioned Aircraft Sextant For Sale

  1. 2020-08-12 01:28 Robert Swartz

13 Aug 2020 – 13 Aug 2020 : Interesting US Navy Equipment

  1. 2020-08-13 02:18 Robert Swartz

07 Aug 2020 – 13 Aug 2020 : AH Level?

  1. 2020-08-07 20:42 Noell Wilson
  2. 2020-08-07 21:46 David C
  3. 2020-08-07 23:04 Frank Reed
  4. 2020-08-08 02:37 Marty Lyons
  5. 2020-08-08 03:08 Bruce J. Pennino
  6. 2020-08-08 14:35 Noell Wilson
  7. 2020-08-12 05:21 Peter Monta
  8. 2020-08-13 15:07 Alan S

16 Aug 2020 – 16 Aug 2020 : Re: Online Video "Office Hours" tomorrow

  1. 2020-08-16 01:37 Frank Reed

15 Aug 2020 – 16 Aug 2020 : Bausch and Lomb A8-A Reconditioned Bubble Sextant For Sale

  1. 2020-08-15 03:04 Robert Swartz
  2. 2020-08-16 21:50 David C
  3. 2020-08-16 22:58 Robert Swartz

16 Aug 2020 – 17 Aug 2020 : Sextant certificate with a graph

  1. 2020-08-16 15:55 Frank Reed
  2. 2020-08-16 19:06 David Pike
  3. 2020-08-16 19:10 Frank Reed
  4. 2020-08-16 19:21 David Pike
  5. 2020-08-16 21:32 David C
  6. 2020-08-17 07:28 David Pike
  7. 2020-08-17 08:10 David Pike
  8. 2020-08-17 18:03 Murray Buckman

17 Aug 2020 – 17 Aug 2020 : Long by Chron - Wikipedia article

  1. 2020-08-17 03:07 David C
  2. 2020-08-17 03:13 David C
  3. 2020-08-17 10:38 Greg Rudzinski
  4. 2020-08-17 21:19 David C

17 Aug 2020 – 18 Aug 2020 : Average altitude of a celestial sight

  1. 2020-08-17 07:04 Frank Reed
  2. 2020-08-17 08:19 Michael Bradley
  3. 2020-08-17 22:30 Frank Reed
  4. 2020-08-18 00:12 Greg Rudzinski
  5. 2020-08-18 02:06 David Fleming

16 Aug 2020 – 18 Aug 2020 : Finding Longitude from LST

  1. 2020-08-16 21:46 Duane Smith
  2. 2020-08-16 22:13 Frank Reed
  3. 2020-08-16 22:53 Sean C
  4. 2020-08-17 05:15 Duane Smith
  5. 2020-08-17 12:46 R William McAllister
  6. 2020-08-18 09:28 Sean C

18 Aug 2020 – 18 Aug 2020 : RIP Marvin Creamer

  1. 2020-08-18 14:06 Dale Lichtblau

18 Aug 2020 – 18 Aug 2020 : Impressive circumnavigation remembered - Ocean Navigator - Web Exclusives 2016

  1. 2020-08-18 15:02 Hewitt Schlereth

17 Aug 2020 – 18 Aug 2020 : Re: Navigating in Microsoft Flight Simulator

  1. 2020-08-17 21:23 Frank Reed
  2. 2020-08-18 15:06 Dustin Baenen

19 Aug 2020 – 19 Aug 2020 : Periscopic Sextant Mount Listing--Beware-- Useless

  1. 2020-08-19 03:26 Robert Swartz

19 Aug 2020 – 19 Aug 2020 : Hadley Cell Anecdote

  1. 2020-08-19 12:39 Michael Bradley

18 Aug 2020 – 19 Aug 2020 : Who needs a compass? Who needs a sextant?

  1. 2020-08-18 13:07 Jackson McDonald
  2. 2020-08-18 23:52 Greg Rudzinski
  3. 2020-08-19 17:55 Bill Lionheart
  4. 2020-08-19 18:44 Hewitt Schlereth
  5. 2020-08-19 19:35 Don Seltzer

10 Jul 2020 – 19 Aug 2020 : Navigator's Slide Rule

  1. 2020-07-10 05:47 Murray Felstead
  2. 2020-07-11 14:52 Sean Johnston
  3. 2020-07-11 15:49 Bob Goethe
  4. 2020-07-12 04:07 Alan S
  5. 2020-07-12 10:10 Alberto Najar
  6. 2020-07-12 13:19 Hahns Burg
  7. 2020-07-12 16:11 John Carbone
  8. 2020-07-12 16:36 Bruce Cutting
  9. 2020-07-12 16:58 Alan S
  10. 2020-07-12 19:44 Bob Goethe
  11. 2020-07-12 22:17 Alan S
  12. 2020-07-13 02:59 Doug Faunt
  13. 2020-07-13 08:32 Bill Ritchie
  14. 2020-07-13 13:50 Bob Peterson
  15. 2020-07-13 16:26 Bob Goethe
  16. 2020-07-13 16:28 Bob Goethe
  17. 2020-07-14 03:38 Frank Reed
  18. 2020-07-18 14:50 Sean Johnston
  19. 2020-08-17 23:23 Sean Johnston
  20. 2020-08-18 03:16 Alan S
  21. 2020-08-18 07:25 Paul Saffo
  22. 2020-08-18 21:32 Peter Monta
  23. 2020-08-18 21:59 David Pike
  24. 2020-08-19 01:27 Murray Buckman
  25. 2020-08-19 15:38 David Pike
  26. 2020-08-19 19:03 Doug Faunt
  27. 2020-08-19 19:15 Murray Buckman
  28. 2020-08-19 23:38 Charles McElhill

19 Aug 2020 – 21 Aug 2020 : Calibrating New 24MP DSLR Canon Rebel for CN

  1. 2020-08-19 18:28 Greg Rudzinski
  2. 2020-08-20 12:03 Peter Monta
  3. 2020-08-21 12:41 Greg Rudzinski
  4. 2020-08-21 20:24 Peter Monta

22 Aug 2020 – 23 Aug 2020 : CN and my PhD thesis

  1. 2020-08-22 08:48 Igor S.
  2. 2020-08-22 16:02 Bruce J. Pennino
  3. 2020-08-22 16:06 Fred Hebard
  4. 2020-08-22 17:34 Bruce Cutting
  5. 2020-08-22 22:29 Igor S.
  6. 2020-08-22 23:03 Igor S.
  7. 2020-08-23 01:36 Bruce Cutting
  8. 2020-08-23 02:00 Bruce Cutting

23 Aug 2020 – 23 Aug 2020 : Online Video "Office Hours" tomorrow

  1. 2020-08-23 02:28 Frank Reed

23 Aug 2020 – 23 Aug 2020 : What time is it?

  1. 2020-08-23 04:31 David C
  2. 2020-08-23 05:45 Frank Reed
  3. 2020-08-23 06:09 Frank Reed
  4. 2020-08-23 07:42 David C
  5. 2020-08-23 07:54 David C
  6. 2020-08-23 09:03 David C
  7. 2020-08-23 16:45 Murray Buckman
  8. 2020-08-23 22:14 David C
  9. 2020-08-23 22:24 Frank Reed
  10. 2020-08-23 23:05 David C

20 Aug 2020 – 24 Aug 2020 : Who's that hiding behind Jupiter?

  1. 2020-08-20 20:47 David Pike
  2. 2020-08-20 22:34 Murray Buckman
  3. 2020-08-21 18:49 David Pike
  4. 2020-08-24 16:44 Robert Neff

24 Aug 2020 – 24 Aug 2020 : Astronawigacja

  1. 2020-08-24 19:09 Igor S.

23 Aug 2020 – 25 Aug 2020 : Latitude 48 Article Image as CN Piloting Exercise

  1. 2020-08-23 12:22 Greg Rudzinski
  2. 2020-08-23 16:37 Greg Rudzinski
  3. 2020-08-23 16:45 Frank Reed
  4. 2020-08-23 16:53 Greg Rudzinski
  5. 2020-08-23 20:30 Greg Rudzinski
  6. 2020-08-25 02:13 Frank Reed
  7. 2020-08-25 04:22 Greg Rudzinski

24 Aug 2020 – 28 Aug 2020 : Navigation with Moon images

  1. 2020-08-24 02:33 Peter Monta
  2. 2020-08-24 11:39 Greg Rudzinski
  3. 2020-08-24 14:50 Frank Reed
  4. 2020-08-24 15:57 Robert Neff
  5. 2020-08-25 15:52 Peter Monta
  6. 2020-08-25 16:02 Peter Monta
  7. 2020-08-25 16:15 Peter Monta
  8. 2020-08-26 01:59 Greg Rudzinski
  9. 2020-08-27 16:19 Peter Monta
  10. 2020-08-27 20:53 Greg Rudzinski
  11. 2020-08-28 14:07 Peter Monta
  12. 2020-08-28 19:50 Greg Rudzinski

29 Aug 2020 – 29 Aug 2020 : Lunar Jupiter Lunar Calibration Image

  1. 2020-08-29 04:07 Greg Rudzinski

26 Aug 2020 – 29 Aug 2020 : Re: Hughes & Son's Sextant - General Info

  1. 2020-08-26 12:49 Adrian Bevan
  2. 2020-08-26 18:03 Murray Buckman
  3. 2020-08-28 14:46 Adrian Bevan
  4. 2020-08-28 17:51 Frank Reed
  5. 2020-08-29 10:10 Adrian Bevan
  6. 2020-08-29 10:12 Adrian Bevan

30 Aug 2020 – 30 Aug 2020 : Online Meetings Tomorrow

  1. 2020-08-30 04:54 Frank Reed

01 Sep 2020 – 01 Sep 2020 : ADMIN: last night's internet outage

  1. 2020-09-01 01:07 Frank Reed

03 Sep 2020 – 03 Sep 2020 : Bubble Sextant Electrical Bugs

  1. 2020-09-03 05:06 Robert Swartz

03 Sep 2020 – 03 Sep 2020 : Re: Kollsman periscopic sextant and mount

  1. 2020-09-03 04:46 Robert Swartz
  2. 2020-09-03 06:36 Gary LaPook
  3. 2020-09-03 06:56 Gary LaPook

03 Sep 2020 – 03 Sep 2020 : Link Sextant Test Collimator Info.

  1. 2020-09-03 20:08 Robert Swartz

04 Sep 2020 – 04 Sep 2020 : Good Book On Air Navigation

  1. 2020-09-04 01:23 Robert Swartz
  2. 2020-09-04 04:02 Gary LaPook
  3. 2020-09-04 04:29 Gary LaPook

31 Aug 2020 – 04 Sep 2020 : Moon corrections: how computation order affects the result

  1. 2020-08-31 08:43 Fernandez E
  2. 2020-09-01 07:56 David Iwancio
  3. 2020-09-01 13:36 Eric Fernandez
  4. 2020-09-01 16:54 Frank Reed
  5. 2020-09-01 19:48 Gary LaPook
  6. 2020-09-01 20:46 Frank Reed
  7. 2020-09-02 09:43 Eric Fernandez
  8. 2020-09-02 11:40 David Iwancio
  9. 2020-09-02 12:08 David Iwancio
  10. 2020-09-03 19:34 Eric Fernandez
  11. 2020-09-03 21:50 David Iwancio
  12. 2020-09-04 07:45 Eric Fernandez

06 Sep 2020 – 06 Sep 2020 : Troughton sextant

  1. 2020-09-06 11:34 Eric van der Veen

07 Sep 2020 – 07 Sep 2020 : 9th Century Lunar problem...

  1. 2020-09-07 14:39 Dale Lichtblau
  2. 2020-09-07 19:01 Frank Reed

06 Sep 2020 – 07 Sep 2020 : NO Online Meetings Tomorrow

  1. 2020-09-06 03:49 Frank Reed
  2. 2020-09-06 07:15 David Pike
  3. 2020-09-06 21:42 Bill Ritchie
  4. 2020-09-07 22:12 Drago Simac

08 Sep 2020 – 08 Sep 2020 : Re: Sextant Lubrication

  1. 2020-09-08 16:44 Alan S

08 Sep 2020 – 08 Sep 2020 : Free Webinar: POSITIONS OF TRUST: Can we work with Navigation Systems we struggle to understand?

  1. 2020-09-08 18:29 David Pike

08 Sep 2020 – 08 Sep 2020 : Re: Yoder Sextant

  1. 2020-09-08 16:38 Simon Horwith
  2. 2020-09-08 22:28 Frank Reed

04 Sep 2020 – 08 Sep 2020 : Re: Hezzanith Sextant

  1. 2020-09-04 17:02 Al Stewart
  2. 2020-09-04 23:57 Frank Reed
  3. 2020-09-05 01:10 Al Stewart
  4. 2020-09-06 03:47 Frank Reed
  5. 2020-09-06 08:50 Bill Morris
  6. 2020-09-07 00:03 Al Stewart
  7. 2020-09-07 14:29 David Pike
  8. 2020-09-07 18:03 Al Stewart
  9. 2020-09-07 23:02 Al Stewart
  10. 2020-09-07 23:11 Frank Reed
  11. 2020-09-07 23:42 Murray Buckman
  12. 2020-09-08 01:52 Al Stewart
  13. 2020-09-08 02:08 Al Stewart
  14. 2020-09-08 02:44 Murray Buckman
  15. 2020-09-08 22:10 Bill Morris
  16. 2020-09-08 23:39 Frank Reed
  17. 2020-09-08 23:50 Al Stewart

09 Sep 2020 – 09 Sep 2020 : Re: Longitude à midi

  1. 2020-09-09 06:30 Philippe Posth

08 Sep 2020 – 09 Sep 2020 : Martin Creamer dies at 104

  1. 2020-09-08 14:32 Geoffrey Kolbe
  2. 2020-09-08 22:19 Bob Goethe
  3. 2020-09-09 21:03 Frank Reed
  4. 2020-09-09 21:57 Bob Goethe

09 Sep 2020 – 10 Sep 2020 : Novice navigator with a Freiberger sextant

  1. 2020-09-09 18:42 Hans van der Zeijden
  2. 2020-09-09 19:51 Bruce Cutting
  3. 2020-09-10 03:00 Alan S

08 Sep 2020 – 10 Sep 2020 : Longitude at noon

  1. 2020-09-08 19:21 Philippe Posth
  2. 2020-09-08 22:59 Greg Rudzinski
  3. 2020-09-09 00:00 Frank Reed
  4. 2020-09-09 03:45 Bruce Cutting
  5. 2020-09-09 04:24 David C
  6. 2020-09-09 05:26 David C
  7. 2020-09-09 07:57 Andrés Ruiz
  8. 2020-09-09 17:05 Tracy Shrier
  9. 2020-09-09 18:21 Bruce Cutting
  10. 2020-09-09 18:56 Philippe Posth
  11. 2020-09-09 21:58 Tracy Shrier
  12. 2020-09-09 23:11 Bill B
  13. 2020-09-10 15:09 Paul Bedel

11 Sep 2020 – 11 Sep 2020 : Sound Tracks for Lunars

  1. 2020-09-11 00:13 Greg Rudzinski

10 Sep 2020 – 11 Sep 2020 : Problem with Frank Reed updated online almanac

  1. 2020-09-10 13:00 Modris Fersters
  2. 2020-09-10 17:26 Frank Reed
  3. 2020-09-10 20:44 David C
  4. 2020-09-10 21:00 Herman Dekker
  5. 2020-09-11 05:13 Frank Reed
  6. 2020-09-11 06:27 Herman Dekker
  7. 2020-09-11 19:42 Frank Reed

10 Sep 2020 – 11 Sep 2020 : Digital Sextant

  1. 2020-09-10 08:15 Philippe Posth
  2. 2020-09-10 10:55 Bill Lionheart
  3. 2020-09-10 13:21 Greg Rudzinski
  4. 2020-09-10 17:51 Frank Reed
  5. 2020-09-10 18:30 David Iwancio
  6. 2020-09-10 18:52 Alan S
  7. 2020-09-11 10:40 David Pike
  8. 2020-09-11 12:06 Philippe Posth
  9. 2020-09-11 13:37 Don Seltzer
  10. 2020-09-11 23:45 Bruce Cutting

11 Sep 2020 – 12 Sep 2020 : SD topocentric formula

  1. 2020-09-11 06:34 Eric Fernandez
  2. 2020-09-11 20:13 Frank Reed
  3. 2020-09-11 21:01 David Iwancio
  4. 2020-09-12 12:40 Eric Fernandez
  5. 2020-09-12 12:50 Eric Fernandez

09 Sep 2020 – 12 Sep 2020 : Determination of the GHA of Aries

  1. 2020-09-09 18:40 Brian Jones
  2. 2020-09-09 23:00 David Fleming
  3. 2020-09-09 23:22 David Iwancio
  4. 2020-09-10 04:49 David C
  5. 2020-09-10 09:54 Brian Jones
  6. 2020-09-10 18:14 David Fleming
  7. 2020-09-10 19:14 David Iwancio
  8. 2020-09-11 07:18 Sean C
  9. 2020-09-11 07:55 David C
  10. 2020-09-12 15:19 Brian Jones

13 Sep 2020 – 13 Sep 2020 : Online Meetings Tomorrow, Sept 13

  1. 2020-09-13 00:49 Frank Reed

14 Sep 2020 – 14 Sep 2020 : Significant moment in Atlantic ocean

  1. 2020-09-14 00:07 David C

13 Sep 2020 – 15 Sep 2020 : Latitude by Polaris

  1. 2020-09-13 04:29 Robert Swartz
  2. 2020-09-13 06:16 Frank Reed
  3. 2020-09-13 21:55 Gary LaPook
  4. 2020-09-14 01:48 Robert Swartz
  5. 2020-09-14 14:46 Robin Stuart
  6. 2020-09-15 21:55 Frank Reed

12 Sep 2020 – 16 Sep 2020 : Beta testers wanted

  1. 2020-09-12 13:46 Chris Allison
  2. 2020-09-12 22:09 Greg Rudzinski
  3. 2020-09-13 17:17 Chris Allison
  4. 2020-09-13 19:55 Frank Reed
  5. 2020-09-13 21:18 Dave Walden
  6. 2020-09-13 22:43 David C
  7. 2020-09-14 02:12 David C
  8. 2020-09-16 09:01 Chris Allison

15 Sep 2020 – 17 Sep 2020 : Single LOP is enough?

  1. 2020-09-15 12:47 John Deen
  2. 2020-09-15 18:24 Greg Rudzinski
  3. 2020-09-15 18:29 Gary LaPook
  4. 2020-09-15 19:41 Frank Reed
  5. 2020-09-15 21:01 Bill Lionheart
  6. 2020-09-15 21:11 Igor S.
  7. 2020-09-15 21:17 David C
  8. 2020-09-16 04:37 Robert VanderPol II
  9. 2020-09-16 08:48 John Deen
  10. 2020-09-17 19:46 Frank Reed

19 Sep 2020 – 19 Sep 2020 : Arrgh!

  1. 2020-09-19 12:56 Noell Wilson

14 Sep 2020 – 19 Sep 2020 : New Soviet era sextant SNO-T

  1. 2020-09-14 19:59 Markku Kalima
  2. 2020-09-15 00:00 Bruce Cutting
  3. 2020-09-15 07:59 Luc Van den Borre
  4. 2020-09-15 19:40 Markku Kalima
  5. 2020-09-15 20:06 Bruce Cutting
  6. 2020-09-16 18:59 Markku Kalima
  7. 2020-09-16 20:13 Bruce Cutting
  8. 2020-09-17 00:37 Peter Monta
  9. 2020-09-17 02:19 Bruce Cutting
  10. 2020-09-19 10:43 Markku Kalima
  11. 2020-09-19 16:58 Bruce Cutting

15 Sep 2020 – 19 Sep 2020 : USNO web app cloned

  1. 2020-09-15 10:11 Frank Reed
  2. 2020-09-15 11:19 Bob Goethe
  3. 2020-09-15 12:42 Dave Walden
  4. 2020-09-15 12:56 Bob Goethe
  5. 2020-09-15 15:34 Eric Fernandez
  6. 2020-09-15 19:22 Frank Reed
  7. 2020-09-15 21:01 David C
  8. 2020-09-16 01:38 Frank Reed
  9. 2020-09-16 01:56 Frank Reed
  10. 2020-09-16 06:09 Herman Dekker
  11. 2020-09-16 08:14 Eric Fernandez
  12. 2020-09-16 18:59 David Iwancio
  13. 2020-09-17 17:35 Dave Walden
  14. 2020-09-18 11:42 Ed Popko
  15. 2020-09-19 18:11 George Kaplan
  16. 2020-09-19 20:55 George Kaplan

20 Sep 2020 – 20 Sep 2020 : Voyages of the Astrolabe, 1826-29 and 1837-40

  1. 2020-09-20 06:01 Frank Reed
  2. 2020-09-20 07:12 Jürgen Hoefeld

17 Sep 2020 – 20 Sep 2020 : Towson's tables?

  1. 2020-09-17 23:19 David C
  2. 2020-09-17 23:33 Frank Reed
  3. 2020-09-17 23:54 Rommel John Miller
  4. 2020-09-18 22:53 David C
  5. 2020-09-19 03:11 David C
  6. 2020-09-19 03:44 David C
  7. 2020-09-19 03:44 Frank Reed
  8. 2020-09-19 04:22 David C
  9. 2020-09-19 14:49 Paul Bedel
  10. 2020-09-19 17:50 Murray Buckman
  11. 2020-09-19 22:36 David C
  12. 2020-09-20 14:04 Paul Bedel

20 Sep 2020 – 20 Sep 2020 : Online Webex Meetings Tomorrow, Sep 20

  1. 2020-09-20 01:04 Frank Reed
  2. 2020-09-20 19:25 Frank Reed
  3. 2020-09-20 21:10 Doug MacPherson
  4. 2020-09-20 21:33 Bruce Cutting

21 Sep 2020 – 22 Sep 2020 : Cel Nav Training Film

  1. 2020-09-21 20:35 Tracy Shrier
  2. 2020-09-22 08:51 Gary LaPook

22 Sep 2020 – 22 Sep 2020 : A good reason to know celestial navigation

  1. 2020-09-22 19:09 Doug Faunt

31 Aug 2020 – 23 Sep 2020 : Re: Kollsman periscopic sextant mount

  1. 2020-08-31 22:53 Ludwig Schweinfurth
  2. 2020-09-01 07:45 Gary LaPook
  3. 2020-09-03 13:57 David Pike
  4. 2020-09-21 01:05 Ludwig Schweinfurth
  5. 2020-09-21 07:27 Ronald van Riet
  6. 2020-09-21 08:03 Glen Swanson
  7. 2020-09-21 08:38 Gary LaPook
  8. 2020-09-21 09:58 Eric Fernandez
  9. 2020-09-21 15:53 Doug Faunt
  10. 2020-09-21 19:29 Gary LaPook
  11. 2020-09-21 20:29 Doug Faunt
  12. 2020-09-21 20:39 David Pike
  13. 2020-09-21 21:23 Gary LaPook
  14. 2020-09-21 22:49 Dave Walden
  15. 2020-09-22 00:05 Peter Hakel
  16. 2020-09-22 01:09 Doug Faunt
  17. 2020-09-22 01:55 Bruce Cutting
  18. 2020-09-22 07:43 Gary LaPook
  19. 2020-09-22 08:12 Gary LaPook
  20. 2020-09-22 08:16 Gary LaPook
  21. 2020-09-22 09:51 Bill Lionheart
  22. 2020-09-22 17:13 Doug Faunt
  23. 2020-09-22 17:49 Fred Hebard
  24. 2020-09-22 18:31 Frank Reed
  25. 2020-09-22 18:56 Doug Faunt
  26. 2020-09-23 12:09 Dave Walden
  27. 2020-09-23 13:37 Peter Hakel
  28. 2020-09-23 15:56 Doug Faunt

23 Sep 2020 – 23 Sep 2020 : ReedNavigation.com Online Workshops: October 2020

  1. 2020-09-23 18:21 Frank Reed

23 Sep 2020 – 24 Sep 2020 : Women navigators in the age of sail

  1. 2020-09-23 23:44 Don Seltzer
  2. 2020-09-24 00:46 Frank Reed
  3. 2020-09-24 01:25 Don Seltzer

22 Sep 2020 – 24 Sep 2020 : Equinox at 13:30 UT... the Sun is heading south!

  1. 2020-09-22 19:16 Frank Reed
  2. 2020-09-22 22:56 David C
  3. 2020-09-23 21:03 Frank Reed
  4. 2020-09-24 22:55 David C

24 Sep 2020 – 24 Sep 2020 : ADMIN: NavList Operations Contributions

  1. 2020-09-24 23:53 Frank Reed

23 Sep 2020 – 25 Sep 2020 : Polaris' PM in RA?

  1. 2020-09-23 09:57 Sean C
  2. 2020-09-23 17:04 Frank Reed
  3. 2020-09-23 18:29 Roger W. Sinnott
  4. 2020-09-24 14:07 Sean C
  5. 2020-09-24 16:47 Frank Reed
  6. 2020-09-24 21:02 Paul Hirose
  7. 2020-09-24 21:58 Dave Walden
  8. 2020-09-24 22:03 Dave Walden
  9. 2020-09-24 22:16 Dave Walden
  10. 2020-09-24 22:55 Dave Walden
  11. 2020-09-25 06:15 Sean C

24 Sep 2020 – 25 Sep 2020 : Toy ship begins journey

  1. 2020-09-24 09:50 David Pike
  2. 2020-09-24 16:58 David Pike
  3. 2020-09-24 20:09 Francis Upchurch
  4. 2020-09-25 11:42 David Pike

25 Sep 2020 – 25 Sep 2020 : Astronomical Observations of the 1869 Expedition through Grand Canyon

  1. 2020-09-25 17:03 Robin Stuart

24 Sep 2020 – 26 Sep 2020 : Star globe details and a Russian/Soviet book

  1. 2020-09-24 04:37 Frank Reed
  2. 2020-09-25 08:41 Igor S.
  3. 2020-09-25 21:16 Alan S
  4. 2020-09-26 21:54 Igor S.
  5. 2020-09-26 22:35 Alan S
  6. 2020-09-26 22:36 Frank Reed

27 Sep 2020 – 27 Sep 2020 : NO online "Office Hours" tomorrow...

  1. 2020-09-27 00:28 Frank Reed

19 Sep 2020 – 27 Sep 2020 : Russian celestial star globe

  1. 2020-09-19 10:58 Markku Kalima
  2. 2020-09-19 18:53 Alexandre Eremenko
  3. 2020-09-20 04:25 Sean C
  4. 2020-09-20 12:11 Alexandre Eremenko
  5. 2020-09-21 18:44 Philippe Posth
  6. 2020-09-27 06:10 Markku Kalima
  7. 2020-09-27 10:13 Igor S.

28 Sep 2020 – 28 Sep 2020 : Re: Azimuth diagram of Hanno Ix

  1. 2020-09-28 04:36 Jim Williams
  2. 2020-09-28 13:06 Greg Rudzinski

24 Sep 2020 – 29 Sep 2020 : Units in Navigation

  1. 2020-09-24 01:30 Gary LaPook
  2. 2020-09-24 05:16 Geoffrey Kolbe
  3. 2020-09-24 09:39 Gary LaPook
  4. 2020-09-24 16:46 David Pike
  5. 2020-09-24 17:13 Noell Wilson
  6. 2020-09-24 18:18 David Iwancio
  7. 2020-09-24 20:45 Gary LaPook
  8. 2020-09-25 00:35 Doug Faunt
  9. 2020-09-25 04:32 Brian Walton
  10. 2020-09-25 18:44 Gary LaPook
  11. 2020-09-25 19:59 David Pike
  12. 2020-09-25 22:22 David C
  13. 2020-09-25 23:11 David C
  14. 2020-09-26 04:05 Frank Reed
  15. 2020-09-26 09:27 Gary LaPook
  16. 2020-09-26 10:17 Brian Walton
  17. 2020-09-26 12:45 David Pike
  18. 2020-09-26 18:02 Frank Reed
  19. 2020-09-26 18:11 Gary LaPook
  20. 2020-09-26 19:17 Frank Reed
  21. 2020-09-26 19:37 David Pike
  22. 2020-09-26 19:43 Frank Reed
  23. 2020-09-26 20:01 John Clements
  24. 2020-09-26 21:27 David C
  25. 2020-09-26 21:44 Don Seltzer
  26. 2020-09-27 03:00 Gary LaPook
  27. 2020-09-27 03:03 Gary LaPook
  28. 2020-09-27 03:58 Frank Reed
  29. 2020-09-27 08:22 David Iwancio
  30. 2020-09-27 21:24 Gary LaPook
  31. 2020-09-27 21:42 Gary LaPook
  32. 2020-09-27 22:05 David C
  33. 2020-09-27 22:41 David C
  34. 2020-09-28 07:31 Gary LaPook
  35. 2020-09-28 07:46 Gary LaPook
  36. 2020-09-28 15:46 Robert Neff
  37. 2020-09-28 17:54 Al Stewart
  38. 2020-09-28 19:57 Gary LaPook
  39. 2020-09-28 20:01 Gary LaPook
  40. 2020-09-28 21:59 David Pike
  41. 2020-09-29 00:02 Gary LaPook

27 Sep 2020 – 29 Sep 2020 : Solve this Moon photo!

  1. 2020-09-27 06:14 Frank Reed
  2. 2020-09-27 15:48 Greg Rudzinski
  3. 2020-09-27 20:59 Don Seltzer
  4. 2020-09-27 21:26 Frank Reed
  5. 2020-09-28 02:59 Greg Rudzinski
  6. 2020-09-28 13:30 Greg Rudzinski
  7. 2020-09-28 19:18 Frank Reed
  8. 2020-09-28 20:30 Greg Rudzinski
  9. 2020-09-29 02:22 Don Seltzer
  10. 2020-09-29 05:55 Frank Reed

28 Sep 2020 – 30 Sep 2020 : Moon meridian passage

  1. 2020-09-28 23:23 Bob GW
  2. 2020-09-29 00:57 David Fleming
  3. 2020-09-29 01:01 Frank Reed
  4. 2020-09-29 08:35 Bob GW
  5. 2020-09-29 09:12 Bob GW
  6. 2020-09-29 23:21 Bruce J. Pennino
  7. 2020-09-30 18:03 Jeremy C

29 Sep 2020 – 02 Oct 2020 : Navigation Systems: online lecture

  1. 2020-09-29 15:42 David Pike
  2. 2020-09-29 22:54 Alan S
  3. 2020-09-30 07:33 David Pike
  4. 2020-10-02 15:16 David Pike

03 Oct 2020 – 03 Oct 2020 : Modern Celestial Navigation workshops postponed until mid-November

  1. 2020-10-03 20:28 Frank Reed

03 Oct 2020 – 03 Oct 2020 : Online Meeting Tomorrow, Oct 4, "Distance by Vertical Angle"

  1. 2020-10-03 20:46 Frank Reed

04 Oct 2020 – 04 Oct 2020 : Reconditioned Bausch and Lomb A8-A Bubble Sextant F.S. Discounted

  1. 2020-10-04 02:05 Robert Swartz

30 Sep 2020 – 05 Oct 2020 : Re: Flight 19 route

  1. 2020-09-30 19:59 Kevin MacKenzie
  2. 2020-10-05 16:54 Kevin MacKenzie

01 Oct 2020 – 05 Oct 2020 : GHA of the Moon

  1. 2020-10-01 22:00 James Vrancik
  2. 2020-10-01 22:34 Frank Reed
  3. 2020-10-02 00:05 David Iwancio
  4. 2020-10-02 00:49 Roger W. Sinnott
  5. 2020-10-02 08:22 Gary LaPook
  6. 2020-10-02 21:48 James Vrancik
  7. 2020-10-03 00:26 David C
  8. 2020-10-03 04:48 Sean C
  9. 2020-10-03 05:12 Frank Reed
  10. 2020-10-03 08:01 David C
  11. 2020-10-03 18:25 David Iwancio
  12. 2020-10-03 18:39 Frank Reed
  13. 2020-10-03 20:29 James Vrancik
  14. 2020-10-03 22:59 Frank Reed
  15. 2020-10-03 23:09 Frank Reed
  16. 2020-10-04 05:01 Peter Hakel
  17. 2020-10-04 12:01 Michael Bradley
  18. 2020-10-05 07:48 Sean C
  19. 2020-10-05 17:16 Tibor Miseta
  20. 2020-10-05 21:11 Frank Reed

05 Oct 2020 – 06 Oct 2020 : Old navigation books collection

  1. 2020-10-05 20:43 Herman Dekker
  2. 2020-10-05 22:08 Simon Horwith
  3. 2020-10-06 04:35 David C

06 Oct 2020 – 07 Oct 2020 : Re: US Navy MK II sextant manual

  1. 2020-10-06 22:07 Randy Shivak
  2. 2020-10-07 00:14 Bruce Cutting

06 Oct 2020 – 08 Oct 2020 : Distance by Vertical Angle

  1. 2020-10-06 18:09 Frank Reed
  2. 2020-10-06 23:16 David Pike
  3. 2020-10-07 18:16 Frank Reed
  4. 2020-10-07 18:18 Murray Buckman
  5. 2020-10-08 00:42 Frank Reed

08 Oct 2020 – 08 Oct 2020 : Phosphine biomarker gas in Venus atmosphere.

  1. 2020-10-08 02:48 Francis Upchurch
  2. 2020-10-08 04:02 Alan S

08 Oct 2020 – 08 Oct 2020 : Celestial navigation resurgence (Yachting World)

  1. 2020-10-08 12:17 John Carbone

07 Oct 2020 – 09 Oct 2020 : Free Webinar on 17th & 18th Century Marine Navigation

  1. 2020-10-07 18:24 David Pike
  2. 2020-10-08 18:38 David Pike
  3. 2020-10-08 20:56 David Pike
  4. 2020-10-09 21:37 John Clements

11 Oct 2020 – 11 Oct 2020 : Online Meetings Tomorrow, Oct 11

  1. 2020-10-11 01:31 Frank Reed

10 Oct 2020 – 11 Oct 2020 : Re: Time sight primer

  1. 2020-10-10 08:45 David C
  2. 2020-10-11 01:00 Frank Reed
  3. 2020-10-11 02:41 David C

11 Oct 2020 – 11 Oct 2020 : Historical US nautical charts and other maps

  1. 2020-10-11 21:16 Frank Reed

13 Oct 2020 – 13 Oct 2020 : How long until Sun goes down?

  1. 2020-10-13 18:10 Herman Dekker

07 Oct 2020 – 13 Oct 2020 : Battenberg manuals

  1. 2020-10-07 08:35 Ronald van Riet
  2. 2020-10-07 17:54 David Pike
  3. 2020-10-07 18:02 David Pike
  4. 2020-10-07 19:01 John Niven
  5. 2020-10-07 19:16 Alan S
  6. 2020-10-07 23:26 David Pike
  7. 2020-10-08 14:23 Michael Bradley
  8. 2020-10-08 22:54 David Pike
  9. 2020-10-08 23:11 David Pike
  10. 2020-10-09 11:09 John Niven
  11. 2020-10-13 10:08 Ronald van Riet
  12. 2020-10-13 18:42 David Pike

14 Oct 2020 – 14 Oct 2020 : Re: Folding Chair for CN

  1. 2020-10-14 21:45 Alan S

15 Oct 2020 – 16 Oct 2020 : Problem: index correction by star

  1. 2020-10-15 18:23 Modris Fersters
  2. 2020-10-15 18:53 Frank Reed
  3. 2020-10-16 05:49 Modris Fersters

17 Oct 2020 – 17 Oct 2020 : Re: Slide rule

  1. 2020-10-17 18:53 Doug Faunt

14 Oct 2020 – 17 Oct 2020 : Clear side of horizon mirrors has reflecting properties.

  1. 2020-10-14 09:28 Bob GW
  2. 2020-10-14 15:53 David Pike
  3. 2020-10-14 17:21 Bob GW
  4. 2020-10-14 18:09 David C
  5. 2020-10-14 19:55 David Pike
  6. 2020-10-16 01:29 Bill Morris
  7. 2020-10-16 05:51 John Clements
  8. 2020-10-16 08:49 David Pike
  9. 2020-10-17 02:41 Bill Morris
  10. 2020-10-17 03:24 Bill Morris
  11. 2020-10-17 19:54 David Pike

27 Sep 2020 – 17 Oct 2020 : Crelle's tables

  1. 2020-09-27 02:10 David C
  2. 2020-09-27 04:00 Alan S
  3. 2020-09-27 12:31 Dave Walden
  4. 2020-09-27 15:22 Dave Walden
  5. 2020-09-27 19:50 Lars Bergman
  6. 2020-09-27 21:55 Bill Ritchie
  7. 2020-09-27 22:29 David C
  8. 2020-09-28 04:34 David C
  9. 2020-09-28 05:47 Bill B
  10. 2020-10-17 04:29 David C
  11. 2020-10-17 05:52 David C
  12. 2020-10-17 07:17 Herman Dekker
  13. 2020-10-17 09:11 Lars Bergman
  14. 2020-10-17 16:39 Alan S
  15. 2020-10-17 18:17 Frank Reed
  16. 2020-10-17 20:00 David C
  17. 2020-10-17 20:16 Peter Hakel

18 Oct 2020 – 18 Oct 2020 : No "Office Hours" today

  1. 2020-10-18 08:42 Frank Reed

14 Oct 2020 – 18 Oct 2020 : 24MP DSLR 35mm Lunars

  1. 2020-10-14 13:26 Greg Rudzinski
  2. 2020-10-14 16:08 Greg Rudzinski
  3. 2020-10-15 01:55 Frank Reed
  4. 2020-10-15 02:27 Greg Rudzinski
  5. 2020-10-18 13:41 Ed Popko

13 Oct 2020 – 18 Oct 2020 : Experience with an artifical horizon

  1. 2020-10-13 18:51 Modris Fersters
  2. 2020-10-13 22:04 Greg Rudzinski
  3. 2020-10-14 03:49 Alan S
  4. 2020-10-14 04:44 David C
  5. 2020-10-14 07:05 David Iwancio
  6. 2020-10-14 11:24 Matthew Gianelloni
  7. 2020-10-14 11:32 Matthew Gianelloni
  8. 2020-10-14 14:47 Doug MacPherson
  9. 2020-10-14 17:12 Gary LaPook
  10. 2020-10-15 23:00 Marty Lyons
  11. 2020-10-16 01:06 Greg Rudzinski
  12. 2020-10-16 03:03 David Fleming
  13. 2020-10-16 03:13 Robert Swartz
  14. 2020-10-16 17:26 Gary LaPook
  15. 2020-10-18 13:38 Ed Popko
  16. 2020-10-18 17:07 David Iwancio
  17. 2020-10-18 22:26 Gary LaPook

19 Oct 2020 – 19 Oct 2020 : Re: Measuring (and Calculating) Dip

  1. 2020-10-19 04:24 Andrew T. Young

19 Oct 2020 – 19 Oct 2020 : Deborah Warner Article re. Aircraft Sextants

  1. 2020-10-19 04:33 Robert Swartz

18 Oct 2020 – 19 Oct 2020 : USAF smartphone celestial patent

  1. 2020-10-18 22:58 Frank Reed
  2. 2020-10-19 08:38 David Pike
  3. 2020-10-19 08:53 Fred Hebard
  4. 2020-10-19 16:22 David Pike
  5. 2020-10-19 16:34 David Pike

19 Oct 2020 – 20 Oct 2020 : Smithsonian Collection of Aircraft Sextants

  1. 2020-10-19 04:35 Robert Swartz
  2. 2020-10-19 07:38 Jürgen Hoefeld
  3. 2020-10-19 22:46 Robert Swartz
  4. 2020-10-20 03:53 Gary LaPook

20 Oct 2020 – 20 Oct 2020 : Workshop this weekend: Celestial in the Age of Sail

  1. 2020-10-20 15:49 Frank Reed

20 Oct 2020 – 20 Oct 2020 : My "Office Hours" sessions, schedule change

  1. 2020-10-20 17:26 Frank Reed

12 Oct 2020 – 22 Oct 2020 : Navigation Training at Sea and in the Air - Free Online Seminar

  1. 2020-10-12 19:00 David Pike
  2. 2020-10-15 16:29 David Pike
  3. 2020-10-15 23:04 Frank Reed
  4. 2020-10-16 18:09 Bob Crawley
  5. 2020-10-16 20:21 David Pike
  6. 2020-10-17 05:43 Gary LaPook
  7. 2020-10-17 09:14 David Pike
  8. 2020-10-17 20:42 Gary LaPook
  9. 2020-10-19 15:56 David Pike
  10. 2020-10-22 18:25 David Pike

21 Oct 2020 – 22 Oct 2020 : Navigation stars and a SpaceX Mockship

  1. 2020-10-21 19:56 Frank Reed
  2. 2020-10-22 01:20 Murray Buckman
  3. 2020-10-22 02:08 Frank Reed
  4. 2020-10-22 02:33 Doug Faunt
  5. 2020-10-22 18:55 Murray Buckman

21 Oct 2020 – 22 Oct 2020 : Curious sextant add-on

  1. 2020-10-21 17:06 Bill Lockhart
  2. 2020-10-21 18:10 David Iwancio
  3. 2020-10-21 18:41 Luc Van den Borre
  4. 2020-10-21 21:06 Gary LaPook
  5. 2020-10-22 00:14 Bill Lockhart
  6. 2020-10-22 06:57 Bill Lionheart
  7. 2020-10-22 08:08 Gary LaPook
  8. 2020-10-22 09:44 Bill Lionheart
  9. 2020-10-22 16:26 David Iwancio
  10. 2020-10-22 17:10 David Pike
  11. 2020-10-22 17:23 Doug Faunt
  12. 2020-10-22 17:42 Bill Lockhart
  13. 2020-10-22 18:39 Michael Bradley
  14. 2020-10-22 19:20 Dustin Baenen
  15. 2020-10-22 19:56 David Pike
  16. 2020-10-22 21:24 Dustin Baenen

22 Oct 2020 – 22 Oct 2020 : French inertial-celestial system

  1. 2020-10-22 21:27 Frank Reed

23 Oct 2020 – 23 Oct 2020 : Article about Frank's Nautical Almanac clone app in Ocean Navigator.

  1. 2020-10-23 02:33 Doug Faunt

10 Oct 2020 – 23 Oct 2020 : Haversines with Logarithms

  1. 2020-10-10 16:15 Matthew Gianelloni
  2. 2020-10-11 01:21 Frank Reed
  3. 2020-10-11 11:46 Matthew Gianelloni
  4. 2020-10-11 12:14 Matthew Gianelloni
  5. 2020-10-11 14:40 Lars Bergman
  6. 2020-10-11 16:03 Frank Reed
  7. 2020-10-11 16:14 Matthew Gianelloni
  8. 2020-10-11 18:51 Greg Rudzinski
  9. 2020-10-12 01:10 Matthew Gianelloni
  10. 2020-10-12 01:17 Matthew Gianelloni
  11. 2020-10-12 03:41 David C
  12. 2020-10-12 06:03 Greg Rudzinski
  13. 2020-10-12 10:56 Matthew Gianelloni
  14. 2020-10-12 11:44 Matthew Gianelloni
  15. 2020-10-12 14:13 Matthew Gianelloni
  16. 2020-10-12 14:28 Greg Rudzinski
  17. 2020-10-12 14:36 Matthew Gianelloni
  18. 2020-10-12 17:51 Frank Reed
  19. 2020-10-12 18:13 Matthew Gianelloni
  20. 2020-10-12 23:41 Gary LaPook
  21. 2020-10-12 23:51 Matthew Gianelloni
  22. 2020-10-13 00:28 Murray Buckman
  23. 2020-10-13 02:40 David C
  24. 2020-10-13 11:26 Matthew Gianelloni
  25. 2020-10-13 12:05 Matthew Gianelloni
  26. 2020-10-13 18:22 Matthew Gianelloni
  27. 2020-10-13 19:49 David C
  28. 2020-10-14 18:01 Gary LaPook
  29. 2020-10-14 18:51 David C
  30. 2020-10-14 18:54 David C
  31. 2020-10-14 19:31 Matthew Gianelloni
  32. 2020-10-15 10:31 Matthew Gianelloni
  33. 2020-10-16 07:58 Brian Walton
  34. 2020-10-16 11:10 Matthew Gianelloni
  35. 2020-10-16 21:12 David C
  36. 2020-10-17 09:01 Brian Walton
  37. 2020-10-17 18:25 Matthew Gianelloni
  38. 2020-10-17 21:22 Roger W. Sinnott
  39. 2020-10-18 14:49 Brian Walton
  40. 2020-10-18 19:39 David Pike
  41. 2020-10-19 02:05 David C
  42. 2020-10-19 04:26 David C
  43. 2020-10-19 21:14 David C
  44. 2020-10-20 14:45 Brian Walton
  45. 2020-10-20 20:36 Frank Reed
  46. 2020-10-23 06:56 Gary LaPook
  47. 2020-10-23 07:36 Frank Reed
  48. 2020-10-23 19:19 Gary LaPook

24 Oct 2020 – 24 Oct 2020 : Heavenly Mathematics - The Forgotten Art of Spherical Trigonometry

  1. 2020-10-24 15:35 Ed Popko

23 Oct 2020 – 25 Oct 2020 : Live, interactive "Office Hours" Oct 23 and Oct 25 (Friday and Sunday)

  1. 2020-10-23 03:14 Frank Reed
  2. 2020-10-23 08:45 David Pike
  3. 2020-10-25 14:57 Frank Reed

22 Oct 2020 – 25 Oct 2020 : Re: Hav-Doniol re-visited

  1. 2020-10-22 20:39 David C
  2. 2020-10-22 23:26 Greg Rudzinski
  3. 2020-10-23 00:20 Greg Rudzinski
  4. 2020-10-25 04:08 David C
  5. 2020-10-25 20:29 Greg Rudzinski

25 Oct 2020 – 27 Oct 2020 : Simultaneous near limb - far limb lunars

  1. 2020-10-25 10:01 Tibor Miseta
  2. 2020-10-25 19:47 David Fleming
  3. 2020-10-26 13:48 Dave Walden
  4. 2020-10-26 23:19 Greg Rudzinski
  5. 2020-10-27 10:46 Tibor Miseta
  6. 2020-10-27 18:24 Lars Bergman

27 Oct 2020 – 28 Oct 2020 : Question from the FNG

  1. 2020-10-27 13:43 Matthew Gianelloni
  2. 2020-10-27 17:40 Jim Hickey
  3. 2020-10-27 17:49 John Clements
  4. 2020-10-28 00:18 Matthew Gianelloni
  5. 2020-10-28 04:37 Robert VanderPol II
  6. 2020-10-28 05:18 Gary LaPook
  7. 2020-10-28 05:36 Gary LaPook
  8. 2020-10-28 05:43 Gary LaPook

28 Oct 2020 – 28 Oct 2020 : “The Dutch Raid on the Medway 1667 ” Free online webinar

  1. 2020-10-28 11:28 David Pike

28 Oct 2020 – 28 Oct 2020 : Digital watches as chronometers

  1. 2020-10-28 08:37 Gary LaPook
  2. 2020-10-28 18:02 Greg Rudzinski
  3. 2020-10-28 18:29 Gary LaPook
  4. 2020-10-28 18:55 Gary LaPook

30 Oct 2020 – 30 Oct 2020 : Live, interactive "Office Hours" TODAY and Sunday

  1. 2020-10-30 15:21 Frank Reed

30 Oct 2020 – 30 Oct 2020 : Lars Bergman - Worsleys Logbook

  1. 2020-10-30 18:17 David Mearns

01 Nov 2020 – 01 Nov 2020 : How do you set a Tide Clock ?

  1. 2020-11-01 04:51 Geoff Hitchcox
  2. 2020-11-01 20:02 Frank Reed

31 Oct 2020 – 01 Nov 2020 : Lecky's mistake

  1. 2020-10-31 03:20 David C
  2. 2020-10-31 04:06 Frank Reed
  3. 2020-10-31 09:40 Murray Peake
  4. 2020-10-31 12:44 David Pike
  5. 2020-10-31 19:55 David Pike
  6. 2020-10-31 20:53 David C
  7. 2020-11-01 15:49 Lars Bergman
  8. 2020-11-01 20:53 David Pike

30 Oct 2020 – 02 Nov 2020 : The Nautical Mile?

  1. 2020-10-30 07:59 Mike Freeman
  2. 2020-10-31 00:39 Robert VanderPol II
  3. 2020-10-31 15:40 Lars Bergman
  4. 2020-10-31 16:22 James F Campbell
  5. 2020-10-31 18:25 Mike Freeman
  6. 2020-10-31 19:46 Don Seltzer
  7. 2020-10-31 23:27 Gary LaPook
  8. 2020-11-01 05:07 Paul Hirose
  9. 2020-11-01 08:53 Gary LaPook
  10. 2020-11-01 09:06 Gary LaPook
  11. 2020-11-01 15:00 Lars Bergman
  12. 2020-11-02 07:08 Mike Freeman

29 Oct 2020 – 02 Nov 2020 : Hanno Ix azimuth diagram flowchart?

  1. 2020-10-29 04:51 Brian Villmoare
  2. 2020-10-29 13:22 Greg Rudzinski
  3. 2020-10-29 18:42 Brian Villmoare
  4. 2020-10-30 01:48 David C
  5. 2020-10-30 02:05 David C
  6. 2020-10-30 09:33 Herman Dekker
  7. 2020-10-30 16:30 Brian Villmoare
  8. 2020-10-30 21:16 David C
  9. 2020-10-30 22:52 David C
  10. 2020-11-02 14:39 Andrés Ruiz

02 Nov 2020 – 03 Nov 2020 : Cloudy Weather Johnson's Double Chronometer Method

  1. 2020-11-02 03:52 David C
  2. 2020-11-02 16:50 Murray Buckman
  3. 2020-11-02 20:49 David C
  4. 2020-11-02 21:49 Murray Buckman
  5. 2020-11-02 22:06 David C
  6. 2020-11-03 02:17 Murray Buckman
  7. 2020-11-03 10:52 Paul Bedel

04 Nov 2020 – 04 Nov 2020 : A68 iceberg on collision path with South Georgia - BBC News

  1. 2020-11-04 18:24 Jackson McDonald

01 Nov 2020 – 06 Nov 2020 : Re: "Office Hours" today's session cancelled

  1. 2020-11-01 20:15 Frank Reed
  2. 2020-11-06 06:52 Frank Reed

07 Nov 2020 – 07 Nov 2020 : New David Lewis book

  1. 2020-11-07 09:57 Benjamin Lowings

06 Nov 2020 – 07 Nov 2020 : Where are we Navigator

  1. 2020-11-06 17:49 David Pike
  2. 2020-11-06 20:48 Frank Reed
  3. 2020-11-06 21:29 David C
  4. 2020-11-06 21:44 David C
  5. 2020-11-06 22:19 Murray Buckman
  6. 2020-11-06 22:42 Murray Buckman
  7. 2020-11-06 22:50 Frank Reed
  8. 2020-11-06 23:02 Bill Ritchie
  9. 2020-11-07 00:14 David Pike
  10. 2020-11-07 00:51 Don Seltzer
  11. 2020-11-07 00:52 Don Seltzer
  12. 2020-11-07 01:02 Luc Van den Borre
  13. 2020-11-07 07:31 Frank Reed
  14. 2020-11-07 09:58 David Pike

07 Nov 2020 – 07 Nov 2020 : Mariner's Mirror Podcast

  1. 2020-11-07 15:43 Bob Crawley

09 Nov 2020 – 09 Nov 2020 : Titanic rescue attemps documentary

  1. 2020-11-09 09:21 Bill B
  2. 2020-11-09 19:59 David C
  3. 2020-11-09 23:24 Charles McElhill

11 Nov 2020 – 11 Nov 2020 : Modern Celestial ONE: Sextants & Sun Sights

  1. 2020-11-11 20:29 Frank Reed

12 Nov 2020 – 12 Nov 2020 : Celestial Navigation on a minesweeper

  1. 2020-11-12 23:32 Frank Reed

13 Nov 2020 – 13 Nov 2020 : Astronomy or Astrology

  1. 2020-11-13 04:44 Robert Swartz
  2. 2020-11-13 06:16 Geoffrey Kolbe
  3. 2020-11-13 07:01 David Iwancio

11 Nov 2020 – 13 Nov 2020 : My "Office Hours" this weekend

  1. 2020-11-11 20:21 Frank Reed
  2. 2020-11-13 16:13 Frank Reed

12 Nov 2020 – 13 Nov 2020 : Another "Where are we?" puzzle

  1. 2020-11-12 02:19 Frank Reed
  2. 2020-11-12 14:55 Greg Rudzinski
  3. 2020-11-12 16:08 David Pike
  4. 2020-11-12 18:45 Greg Rudzinski
  5. 2020-11-12 19:22 Greg Rudzinski
  6. 2020-11-12 21:43 Frank Reed
  7. 2020-11-13 16:38 David Pike
  8. 2020-11-13 20:21 Frank Reed

13 Nov 2020 – 13 Nov 2020 : Definition Intercept/St. Hilaire Method

  1. 2020-11-13 22:45 Bob Goethe
  2. 2020-11-13 23:25 Greg Rudzinski

31 Oct 2020 – 14 Nov 2020 : Radians and Degrees

  1. 2020-10-31 11:07 Sean C
  2. 2020-10-31 22:34 Robert VanderPol II
  3. 2020-11-01 17:21 Tracy Shrier
  4. 2020-11-01 22:05 Paul Hirose
  5. 2020-11-03 05:32 Sean C
  6. 2020-11-03 09:59 Sean C
  7. 2020-11-04 16:29 Alan S
  8. 2020-11-04 19:27 Alan S
  9. 2020-11-05 17:59 Gary LaPook
  10. 2020-11-05 21:08 Sean C
  11. 2020-11-05 21:29 Alan S
  12. 2020-11-06 05:11 Sean C
  13. 2020-11-06 15:57 Alan S
  14. 2020-11-14 03:50 Alan S
  15. 2020-11-14 06:10 Gary LaPook
  16. 2020-11-14 08:38 Sean C

13 Nov 2020 – 14 Nov 2020 : Casio fx-300ES Plus (2nd Edition)

  1. 2020-11-13 23:11 Bob Goethe
  2. 2020-11-14 02:13 Greg Rudzinski
  3. 2020-11-14 03:18 David C
  4. 2020-11-14 03:29 Alan S
  5. 2020-11-14 08:32 Sean C
  6. 2020-11-14 14:43 Bela Kovacs
  7. 2020-11-14 16:03 Bob Goethe
  8. 2020-11-14 19:42 Ofer Bar Gil
  9. 2020-11-14 19:53 Greg Rudzinski

13 Nov 2020 – 15 Nov 2020 : Meridian transit adaptation

  1. 2020-11-13 20:30 David Schmidt
  2. 2020-11-14 11:46 David Pike
  3. 2020-11-14 22:53 Nick M
  4. 2020-11-15 04:57 Bruce J. Pennino
  5. 2020-11-15 16:43 David Pike

15 Nov 2020 – 15 Nov 2020 : Re: My "Office Hours" (and Launch Lunch)

  1. 2020-11-15 21:45 Frank Reed

13 Nov 2020 – 16 Nov 2020 : Sextant practice in 2014

  1. 2020-11-13 06:48 Frank Reed
  2. 2020-11-13 12:35 Greg Rudzinski
  3. 2020-11-16 03:47 Bill Morris
  4. 2020-11-16 09:11 Bill Lionheart

17 Nov 2020 – 17 Nov 2020 : Re: CP-300/U USAF Star Finder

  1. 2020-11-17 03:51 Alan S

13 Nov 2020 – 17 Nov 2020 : Digital wrist watch with specific capabilities

  1. 2020-11-13 13:30 Pedro Redondo
  2. 2020-11-14 23:53 Hewitt Schlereth
  3. 2020-11-15 01:42 Sean C
  4. 2020-11-17 16:35 Pedro Redondo
  5. 2020-11-17 16:36 Pedro Redondo
  6. 2020-11-17 18:18 Bill Lionheart

18 Nov 2020 – 18 Nov 2020 : Free Online Webinar - From the Periplus of Skylax to the Digital Age

  1. 2020-11-18 21:25 David Pike

20 Nov 2020 – 20 Nov 2020 : Online meeting: 1200 EST / 1700 UT

  1. 2020-11-20 15:24 Frank Reed

06 Nov 2020 – 22 Nov 2020 : Edward J Willis

  1. 2020-11-06 03:04 David C
  2. 2020-11-06 06:41 Frank Reed
  3. 2020-11-06 07:33 David C
  4. 2020-11-06 17:28 David Pike
  5. 2020-11-06 21:35 David C
  6. 2020-11-07 00:26 David Pike
  7. 2020-11-07 00:31 David C
  8. 2020-11-07 00:51 David C
  9. 2020-11-07 05:52 David C
  10. 2020-11-07 06:34 Sean C
  11. 2020-11-07 06:38 Fred Hebard
  12. 2020-11-07 06:40 Fred Hebard
  13. 2020-11-07 07:46 Frank Reed
  14. 2020-11-07 08:50 David C
  15. 2020-11-07 11:16 David Pike
  16. 2020-11-07 22:02 David C
  17. 2020-11-08 09:29 Geoffrey Kolbe
  18. 2020-11-08 17:27 David Pike
  19. 2020-11-09 03:37 David C
  20. 2020-11-22 15:20 Frank Reed

22 Nov 2020 – 22 Nov 2020 : Re: Online meeting: 1800 EST / 2300 UT

  1. 2020-11-22 15:24 Frank Reed

16 Nov 2020 – 22 Nov 2020 : Curious star charts

  1. 2020-11-16 15:13 Ed Popko
  2. 2020-11-17 06:55 Frank Reed
  3. 2020-11-17 09:47 David Pike
  4. 2020-11-17 16:10 David Pike
  5. 2020-11-17 16:39 Frank Reed
  6. 2020-11-17 18:10 Jim Rives
  7. 2020-11-17 18:17 David Pike
  8. 2020-11-17 22:23 Murray Buckman
  9. 2020-11-17 22:27 Ed Popko
  10. 2020-11-17 22:37 Gary LaPook
  11. 2020-11-17 22:43 Frank Reed
  12. 2020-11-18 00:18 David Pike
  13. 2020-11-18 03:34 Dave Walden
  14. 2020-11-18 09:08 David Pike
  15. 2020-11-19 17:53 Peter Monta
  16. 2020-11-20 15:37 Alexander Duytschaever
  17. 2020-11-21 14:02 Ed Popko
  18. 2020-11-22 20:14 David Pike

24 Nov 2020 – 25 Nov 2020 : I'm forever blowing (sextant) bubbles

  1. 2020-11-24 17:34 David Pike
  2. 2020-11-25 02:32 David C
  3. 2020-11-25 03:27 Paul Dolkas
  4. 2020-11-25 14:05 David Pike
  5. 2020-11-25 17:38 Paul Dolkas
  6. 2020-11-25 17:40 Ed Popko
  7. 2020-11-25 18:37 David Pike
  8. 2020-11-25 19:12 Geoffrey Kolbe

25 Nov 2020 – 26 Nov 2020 : South Pole Celestial

  1. 2020-11-25 16:45 David Pike
  2. 2020-11-25 17:18 Greg Rudzinski
  3. 2020-11-25 18:47 David Pike
  4. 2020-11-25 19:04 David Pike
  5. 2020-11-25 20:16 David C
  6. 2020-11-25 21:19 Lars Bergman
  7. 2020-11-26 08:03 David Pike

26 Nov 2020 – 26 Nov 2020 : Happy Thanksgiving to the NavList Community

  1. 2020-11-26 19:18 Frank Reed

27 Nov 2020 – 27 Nov 2020 : Celestial Navigation online chat Friday, Sunday

  1. 2020-11-27 05:59 Frank Reed

23 Nov 2020 – 27 Nov 2020 : Index Error - Comparison to SD per Nautical Almanac

  1. 2020-11-23 14:01 Jim Rives
  2. 2020-11-23 14:54 Lars Bergman
  3. 2020-11-24 20:37 Jim Rives
  4. 2020-11-25 20:39 Modris Fersters
  5. 2020-11-25 22:04 Lars Bergman
  6. 2020-11-26 06:09 Frank Reed
  7. 2020-11-26 13:40 Jim Rives
  8. 2020-11-26 13:48 Jim Rives
  9. 2020-11-26 13:53 Jim Rives
  10. 2020-11-26 19:06 Modris Fersters
  11. 2020-11-27 15:31 Jim Rives

27 Nov 2020 – 28 Nov 2020 : Mars N.L. Lunar by DSLR 35mm lens

  1. 2020-11-27 02:32 Greg Rudzinski
  2. 2020-11-27 12:32 Dave Walden
  3. 2020-11-28 02:10 Greg Rudzinski

28 Nov 2020 – 28 Nov 2020 : GPS and measurement of Mount Everest

  1. 2020-11-28 06:42 Gary LaPook

28 Nov 2020 – 28 Nov 2020 : Planetary Corrections

  1. 2020-11-28 16:49 Bob Goethe
  2. 2020-11-28 17:40 Frank Reed
  3. 2020-11-28 20:53 David Iwancio

30 Nov 2020 – 30 Nov 2020 : Testing 1960s Air Nav Equipment

  1. 2020-11-30 01:18 Sean C

01 Dec 2020 – 01 Dec 2020 : Re: F tables - "F-Tafel"

  1. 2020-12-01 00:36 Jerry Mason

30 Nov 2020 – 01 Dec 2020 : Re: Small craft RDF in 1967

  1. 2020-11-30 19:46 Casey Michael
  2. 2020-12-01 13:29 Francis Upchurch
  3. 2020-12-01 16:36 Bruce Cutting
  4. 2020-12-01 16:41 Bill Lionheart
  5. 2020-12-01 18:25 Doug Faunt

01 Dec 2020 – 03 Dec 2020 : Arecibo - Gone

  1. 2020-12-01 18:25 Frank Reed
  2. 2020-12-01 19:24 James F. Campbell
  3. 2020-12-01 20:23 Alexandre Eremenko
  4. 2020-12-03 13:34 Robin Stuart

29 Nov 2020 – 03 Dec 2020 : Incomplete Instrument-- WWII German Soldsextant

  1. 2020-11-29 22:08 Robert Swartz
  2. 2020-11-29 22:39 Bruce Cutting
  3. 2020-11-30 20:30 David Pike
  4. 2020-11-30 21:52 Bill Morris
  5. 2020-11-30 22:06 Bruce Cutting
  6. 2020-12-01 12:38 Wolfgang Hasper
  7. 2020-12-03 18:38 Werner Luehmann

03 Dec 2020 – 03 Dec 2020 : Money from celestial apps

  1. 2020-12-03 20:28 Frank Reed
  2. 2020-12-03 20:59 Frank Reed

28 Nov 2020 – 03 Dec 2020 : 1st type Hand held Bagnold Sun Compass

  1. 2020-11-28 01:10 David Harrison
  2. 2020-11-28 19:13 Geoffrey Kolbe
  3. 2020-11-28 22:56 David Harrison
  4. 2020-11-29 02:21 Herman Dekker
  5. 2020-11-29 03:41 Chris Post
  6. 2020-11-29 06:09 Geoffrey Kolbe
  7. 2020-11-29 12:55 David Pike
  8. 2020-11-30 01:46 David Harrison
  9. 2020-11-30 01:49 David Harrison
  10. 2020-11-30 01:51 David Harrison
  11. 2020-11-30 02:45 David Harrison
  12. 2020-11-30 13:55 David Pike
  13. 2020-12-02 12:34 David Harrison
  14. 2020-12-03 22:20 David Pike

28 Nov 2020 – 04 Dec 2020 : British Air Navigation

  1. 2020-11-28 19:07 Frank Reed
  2. 2020-12-04 10:44 David Pike

04 Dec 2020 – 04 Dec 2020 : Office Hours, online video meeting today (45 minutes from now)

  1. 2020-12-04 16:17 Frank Reed

24 Nov 2020 – 04 Dec 2020 : Upcoming Royal Institute of Navigation Free Webinars

  1. 2020-11-24 10:55 David Pike
  2. 2020-12-04 19:07 David Pike

29 Nov 2020 – 04 Dec 2020 : Low Altitude Sun Artificial Horizon Exercise

  1. 2020-11-29 16:50 Greg Rudzinski
  2. 2020-11-30 23:03 Bill Ritchie
  3. 2020-12-01 00:50 Greg Rudzinski
  4. 2020-12-03 11:59 Richard MacCormac
  5. 2020-12-03 19:02 Greg Rudzinski
  6. 2020-12-03 19:11 Greg Rudzinski
  7. 2020-12-03 21:01 Richard MacCormac
  8. 2020-12-04 23:21 Bill Ritchie

05 Dec 2020 – 05 Dec 2020 : Navigation stars over Australia this morning

  1. 2020-12-05 18:14 Frank Reed

06 Dec 2020 – 06 Dec 2020 : Online "Office Hours", 3pm Pacific Time (2300 UT)

  1. 2020-12-06 20:02 Frank Reed

05 Dec 2020 – 06 Dec 2020 : C. 1900 mercury AH

  1. 2020-12-05 14:28 Noell Wilson
  2. 2020-12-05 21:13 David Pike
  3. 2020-12-05 21:29 David Pike
  4. 2020-12-06 12:39 Noell Wilson
  5. 2020-12-06 20:00 Frank Reed
  6. 2020-12-06 21:41 David Pike

30 Nov 2020 – 07 Dec 2020 : Latitude by Alnair : two degrees meridian altitude

  1. 2020-11-30 19:36 Frank Reed
  2. 2020-12-01 02:35 Bob Goethe
  3. 2020-12-01 02:44 Frank Reed
  4. 2020-12-01 14:39 George Kaplan
  5. 2020-12-01 16:58 D Maracle
  6. 2020-12-01 18:30 Frank Reed
  7. 2020-12-01 20:21 David C
  8. 2020-12-01 23:52 Peter Hakel
  9. 2020-12-02 03:44 Frank Reed
  10. 2020-12-02 03:49 John Clements
  11. 2020-12-02 04:02 Frank Reed
  12. 2020-12-06 19:08 Mike Burkes
  13. 2020-12-07 03:56 Frank Reed

04 Dec 2020 – 07 Dec 2020 : Polaris Lunars

  1. 2020-12-04 16:11 Frank Reed
  2. 2020-12-05 03:41 David Iwancio
  3. 2020-12-05 04:21 Frank Reed
  4. 2020-12-07 08:52 David Iwancio

06 Dec 2020 – 07 Dec 2020 : Re: Butterfly Bris Prototype

  1. 2020-12-06 22:06 Patrick Pont
  2. 2020-12-07 13:35 Greg Rudzinski

07 Dec 2020 – 07 Dec 2020 : Poor Becrux

  1. 2020-12-07 04:52 Frank Reed
  2. 2020-12-07 07:53 David C
  3. 2020-12-07 12:15 David Pike
  4. 2020-12-07 16:25 Al Stewart

06 Dec 2020 – 07 Dec 2020 : Big Dipper and calculator history

  1. 2020-12-06 02:42 Paul Saffo
  2. 2020-12-06 04:47 Paul Saffo
  3. 2020-12-06 11:28 Paul Saffo
  4. 2020-12-06 13:15 Greg Rudzinski
  5. 2020-12-07 20:05 Paul Saffo

07 Dec 2020 – 09 Dec 2020 : Polar distance of Polaris

  1. 2020-12-07 23:14 Bob Goethe
  2. 2020-12-08 01:18 Gary LaPook
  3. 2020-12-08 02:41 Herman Dekker
  4. 2020-12-09 08:47 Gary LaPook

07 Dec 2020 – 09 Dec 2020 : Sextant with Ivory Scale, Serial No 577 by G. A. Berry & Son, Hartlepool,

  1. 2020-12-07 09:41 David Pike
  2. 2020-12-07 21:30 Bill Morris
  3. 2020-12-09 13:01 David Pike

09 Dec 2020 – 09 Dec 2020 : 200mm Lens Calibration Using Doubler

  1. 2020-12-09 22:37 Greg Rudzinski

12 Dec 2020 – 12 Dec 2020 : Re: Beta Cap -- the tenth lunars star

  1. 2020-12-12 05:13 David C

11 Dec 2020 – 12 Dec 2020 : Davis sextant plastic

  1. 2020-12-11 18:16 Philippe Posth
  2. 2020-12-11 19:09 Greg Rudzinski
  3. 2020-12-11 19:24 Ken Gebhart
  4. 2020-12-12 14:37 Bill Lionheart
  5. 2020-12-12 14:39 Bill Lionheart
  6. 2020-12-12 17:42 Greg Rudzinski
  7. 2020-12-12 20:33 David Pike

13 Dec 2020 – 13 Dec 2020 : Re: Online "Office Hours", Sunday 6m EST / 3pm PST (2300 UT)

  1. 2020-12-13 02:27 Frank Reed

12 Dec 2020 – 13 Dec 2020 : New Scientist: GPS mystery is making ships appear to teleport and move in circles

  1. 2020-12-12 22:48 Paul Saffo
  2. 2020-12-13 00:01 Frank Reed
  3. 2020-12-13 01:29 Doug Faunt
  4. 2020-12-13 03:14 Paul Saffo

13 Dec 2020 – 13 Dec 2020 : Latitude by Regor : 1.5 degrees meridian altitude

  1. 2020-12-13 03:15 Frank Reed

13 Dec 2020 – 13 Dec 2020 : Re: Sextant Repairs

  1. 2020-12-13 13:05 Patrick Pont

13 Dec 2020 – 13 Dec 2020 : Navigation Spreadsheets in 2021

  1. 2020-12-13 19:44 Peter Hakel

14 Dec 2020 – 14 Dec 2020 : More RIN Free Webinars

  1. 2020-12-14 00:25 David Pike

14 Dec 2020 – 14 Dec 2020 : Smith's Mk2T (twilight) Periscopic Sextant

  1. 2020-12-14 17:12 David Pike
  2. 2020-12-14 20:57 Gary LaPook

14 Dec 2020 – 14 Dec 2020 : Today's online discussion

  1. 2020-12-14 06:37 Gary LaPook
  2. 2020-12-14 21:46 Gary LaPook
  3. 2020-12-14 21:50 Gary LaPook

17 Dec 2020 – 17 Dec 2020 : 2021 Air Almanac pdf

  1. 2020-12-17 20:21 Frank Reed
  2. 2020-12-17 21:14 Herman Dekker
  3. 2020-12-17 21:43 David Pike

15 Dec 2020 – 18 Dec 2020 : V correction and the sun

  1. 2020-12-15 23:14 Bob Goethe
  2. 2020-12-16 00:38 Nick M
  3. 2020-12-16 06:18 Bob Goethe
  4. 2020-12-18 03:53 David Iwancio

18 Dec 2020 – 18 Dec 2020 : Fwd: Why GPS Doesn't Work

  1. 2020-12-18 15:06 Tom Sult

18 Dec 2020 – 18 Dec 2020 : GPS outages

  1. 2020-12-18 23:47 Gary LaPook

10 Dec 2020 – 20 Dec 2020 : Saturn and Jupiter: one degree separation

  1. 2020-12-10 23:13 Frank Reed
  2. 2020-12-12 01:55 Paul Saffo
  3. 2020-12-12 02:52 Frank Reed
  4. 2020-12-12 21:53 David C
  5. 2020-12-12 23:49 Greg Rudzinski
  6. 2020-12-14 00:37 Greg Rudzinski
  7. 2020-12-20 18:35 Frank Reed

19 Dec 2020 – 21 Dec 2020 : Zenith distance and Ho question.

  1. 2020-12-19 14:00 Robert Goldberg
  2. 2020-12-19 18:23 Frank Reed
  3. 2020-12-19 21:43 Robert Goldberg
  4. 2020-12-19 23:52 Frank Reed
  5. 2020-12-20 00:56 Robert Goldberg
  6. 2020-12-20 03:58 John Clements
  7. 2020-12-20 06:17 Frank Reed
  8. 2020-12-20 17:43 David Pike
  9. 2020-12-21 21:32 Robert Goldberg

21 Dec 2020 – 21 Dec 2020 : Fwd: Christmas Star

  1. 2020-12-21 23:54 Rommel John Miller

21 Dec 2020 – 23 Dec 2020 : The Great Conjunction

  1. 2020-12-21 21:21 David C
  2. 2020-12-21 23:52 Greg Rudzinski
  3. 2020-12-22 20:05 Michael Cain
  4. 2020-12-22 23:51 Murray Buckman
  5. 2020-12-23 00:32 Peter Hakel
  6. 2020-12-23 15:31 Frank Reed

05 Dec 2020 – 24 Dec 2020 : Flight 19 lost, 75 years ago today

  1. 2020-12-05 18:43 Frank Reed
  2. 2020-12-24 18:01 John Matter
  3. 2020-12-24 18:55 Gary LaPook

14 Dec 2020 – 24 Dec 2020 : Latitude by two star altitudes using 19.century Bowditch

  1. 2020-12-14 02:48 Modris Fersters
  2. 2020-12-24 22:48 Frank Reed

18 Dec 2020 – 25 Dec 2020 : Different (?) vernier

  1. 2020-12-18 13:02 Noell Wilson
  2. 2020-12-18 18:16 David Pike
  3. 2020-12-18 19:37 David Pike
  4. 2020-12-20 13:10 Noell Wilson
  5. 2020-12-20 17:58 David Pike
  6. 2020-12-22 17:01 Marty Lyons
  7. 2020-12-22 17:07 Marty Lyons
  8. 2020-12-25 12:50 Noell Wilson

19 Dec 2020 – 27 Dec 2020 : Jupiter-Moon Lunar from a photo

  1. 2020-12-19 04:13 Frank Reed
  2. 2020-12-19 04:28 Frank Reed
  3. 2020-12-19 15:08 Greg Rudzinski
  4. 2020-12-19 19:21 Greg Rudzinski
  5. 2020-12-20 17:14 Modris Fersters
  6. 2020-12-20 21:01 Modris Fersters
  7. 2020-12-20 21:46 Frank Reed
  8. 2020-12-21 04:30 Greg Rudzinski
  9. 2020-12-23 19:10 Mehmet Guzey
  10. 2020-12-23 19:35 Frank Reed
  11. 2020-12-23 19:57 Mehmet Guzey
  12. 2020-12-24 10:15 Modris Fersters
  13. 2020-12-24 15:46 Frank Reed
  14. 2020-12-24 18:52 Mehmet Guzey
  15. 2020-12-25 19:07 Modris Fersters
  16. 2020-12-27 03:10 Frank Reed

25 Dec 2020 – 27 Dec 2020 : Bygrave Equations with a Calculator

  1. 2020-12-25 14:59 Bob Goethe
  2. 2020-12-25 15:52 Frank Reed
  3. 2020-12-26 03:17 David C
  4. 2020-12-26 04:25 Frank Reed
  5. 2020-12-26 07:35 David C
  6. 2020-12-27 03:22 Frank Reed
  7. 2020-12-27 12:30 Örjan Sandström

26 Dec 2020 – 27 Dec 2020 : International star name pronunciations

  1. 2020-12-26 18:04 Frank Reed
  2. 2020-12-27 17:24 Tom McCreary

23 Dec 2020 – 27 Dec 2020 : Re: Sunderlands and marine sextants

  1. 2020-12-23 18:43 Maarten F
  2. 2020-12-23 21:08 David Pike
  3. 2020-12-24 09:39 David Pike
  4. 2020-12-27 18:35 David Pike
  5. 2020-12-27 18:51 David Pike

27 Dec 2020 – 27 Dec 2020 : Sailing to CapeTown from the Falklands in winter - July-August 2020

  1. 2020-12-27 19:53 John Carbone

24 Dec 2020 – 27 Dec 2020 : Online meetings, Office Hours, Christmas & New Years Day

  1. 2020-12-24 17:43 Frank Reed
  2. 2020-12-27 20:08 Frank Reed

23 Dec 2020 – 28 Dec 2020 : More sunlight in Greenland than in the Amazon

  1. 2020-12-23 15:05 Frank Reed
  2. 2020-12-23 16:55 David Pike
  3. 2020-12-24 06:35 Sean C
  4. 2020-12-24 14:21 Nick M
  5. 2020-12-25 04:53 Frank Reed
  6. 2020-12-25 08:45 Sean C
  7. 2020-12-25 19:44 David Pike
  8. 2020-12-26 12:23 Adrian F
  9. 2020-12-26 15:23 David Pike
  10. 2020-12-26 16:40 Frank Reed
  11. 2020-12-26 19:03 David Pike
  12. 2020-12-27 17:44 Adrian F
  13. 2020-12-28 18:13 Frank Reed

28 Dec 2020 – 29 Dec 2020 : Two years after Galileo: an English telescope in Japan

  1. 2020-12-28 17:02 Frank Reed
  2. 2020-12-28 17:48 Fred Hebard
  3. 2020-12-28 18:10 Christopher Willmes
  4. 2020-12-28 18:14 Christopher Willmes
  5. 2020-12-28 19:38 David Fleming
  6. 2020-12-28 20:52 Fred Hebard
  7. 2020-12-28 21:02 Fred Hebard
  8. 2020-12-28 22:23 David Fleming
  9. 2020-12-29 06:09 Fred Hebard

26 Dec 2020 – 29 Dec 2020 : Help Please - paper by Griffiths? on all haversine methods

  1. 2020-12-26 09:20 Michael Bradley
  2. 2020-12-26 13:48 Greg Rudzinski
  3. 2020-12-27 10:36 Michael Bradley
  4. 2020-12-29 15:29 Dave Walden
  5. 2020-12-29 21:54 Michael Bradley

22 Dec 2020 – 30 Dec 2020 : MK2A periscope sextant

  1. 2020-12-22 22:27 K McGrath
  2. 2020-12-23 03:49 Gary LaPook
  3. 2020-12-23 11:16 David Pike
  4. 2020-12-23 12:29 David Pike
  5. 2020-12-23 18:33 K McGrath
  6. 2020-12-23 20:55 David Pike
  7. 2020-12-23 23:35 K McGrath
  8. 2020-12-24 21:50 David Pike
  9. 2020-12-25 15:12 K McGrath
  10. 2020-12-25 21:45 David Pike
  11. 2020-12-30 14:18 K McGrath

30 Dec 2020 – 31 Dec 2020 : Sides of the Navigational Triangle - Naming Conventions?

  1. 2020-12-30 22:41 Bob Goethe
  2. 2020-12-31 01:25 David Iwancio
  3. 2020-12-31 10:23 David Pike

26 Dec 2020 – 01 Jan 2021 : Christmas week Quizzes

  1. 2020-12-26 10:35 David Pike
  2. 2020-12-26 14:23 Jim Vrancik
  3. 2020-12-26 16:40 Greg Rudzinski
  4. 2020-12-26 21:32 Herman Dekker
  5. 2020-12-27 12:12 David Pike
  6. 2020-12-27 15:16 Greg Rudzinski
  7. 2020-12-27 17:14 Modris Fersters
  8. 2020-12-27 17:43 David Pike
  9. 2020-12-27 17:57 David Pike
  10. 2020-12-28 02:18 Mike Burkes
  11. 2020-12-28 11:39 David Pike
  12. 2020-12-28 14:47 Jim Vrancik
  13. 2020-12-28 21:22 Greg Rudzinski
  14. 2020-12-29 11:56 Modris Fersters
  15. 2020-12-29 12:25 David Pike
  16. 2020-12-29 12:42 David Pike
  17. 2020-12-30 10:05 David Pike
  18. 2020-12-31 10:54 David Pike
  19. 2020-12-31 15:42 Don Seltzer
  20. 2021-01-01 09:26 David Pike
  21. 2021-01-01 20:58 Adrian F

27 Dec 2020 – 07 Jan 2021 : Obscure Nautical Almanac star

  1. 2020-12-27 22:44 Frank Reed
  2. 2020-12-28 17:36 Robert H. van Gent
  3. 2020-12-28 17:59 Frank Reed
  4. 2020-12-28 18:13 Frank Reed
  5. 2020-12-29 11:44 Robert H. van Gent
  6. 2020-12-29 16:27 Frank Reed
  7. 2020-12-29 16:55 Robert H. van Gent
  8. 2020-12-29 21:01 John Clements
  9. 2020-12-30 01:02 Frank Reed
  10. 2021-01-01 13:54 Robin Stuart
  11. 2021-01-01 15:09 Frank Reed
  12. 2021-01-01 19:53 Robin Stuart
  13. 2021-01-02 15:41 Frank Reed
  14. 2021-01-02 20:01 Robin Stuart
  15. 2021-01-03 04:29 Frank Reed
  16. 2021-01-03 07:14 Sean C
  17. 2021-01-03 13:01 Robert H. van Gent
  18. 2021-01-03 18:27 Frank Reed
  19. 2021-01-03 18:43 Frank Reed
  20. 2021-01-03 19:16 Frank Reed
  21. 2021-01-04 09:29 Sean C
  22. 2021-01-07 05:23 Frank Reed
  23. 2021-01-07 15:24 Charles McElhill