NavList threads from 2023

[Back to overview of years]

31 Dec 2022 – 01 Jan 2023 : Happy New Year

1. 2022-12-31 17:36 Rommel John Miller
2. 2022-12-31 17:51 Tom Sult
3. 2023-01-01 00:02 Frank Reed

01 Jan 2023 – 01 Jan 2023 : Search function

1. 2023-01-01 04:36 Herman Dekker
2. 2023-01-01 15:25 Frank Reed

30 Dec 2022 – 03 Jan 2023 : Captain Scott's sextant

1. 2022-12-30 17:18 Richard Thompson
2. 2022-12-30 21:46 David Pike
3. 2022-12-31 12:06 Richard Thompson
4. 2022-12-31 17:38 Frank Reed
5. 2022-12-31 20:18 David Pike
6. 2023-01-02 14:27 Henry Klejdys
7. 2023-01-02 17:57 Frank Reed
8. 2023-01-02 22:00 Fred Hebard
9. 2023-01-02 23:40 Frank Reed
10. 2023-01-03 04:53 Martin Caminos
11. 2023-01-03 09:54 David Pike
12. 2023-01-03 14:39 Robin Stuart
13. 2023-01-03 15:28 Henry Klejdys
14. 2023-01-03 15:34 Henry Klejdys
15. 2023-01-03 17:00 Henry Klejdys

06 Jan 2023 – 06 Jan 2023 : Re: Chinese sextant GLH130-60

1. 2023-01-06 17:47 Frank A

06 Jan 2023 – 06 Jan 2023 : Frieberger Sextant Boxes

1. 2023-01-06 21:06 K McGrath

07 Dec 2022 – 06 Jan 2023 : Occultation of Mars tonight by the Full Moon

1. 2022-12-07 20:57 Frank Reed
2. 2022-12-07 21:54 David Pike
3. 2022-12-08 06:13 David Pike
4. 2022-12-08 14:24 Bob Crawley
5. 2022-12-08 22:27 David Pike
6. 2023-01-06 21:27 Frank A

06 Jan 2023 – 06 Jan 2023 : Tamaya NC-99

1. 2023-01-06 21:33 Martin Caminos

24 Dec 2022 – 07 Jan 2023 : Celestial globe gores

1. 2022-12-24 11:36 K McGrath
2. 2022-12-24 20:13 David Pike
3. 2022-12-24 21:56 David Pike
4. 2022-12-26 19:33 Bob Crawley
5. 2022-12-27 11:58 K McGrath
6. 2022-12-27 15:55 Frank Reed
7. 2022-12-27 16:39 David Pike
8. 2022-12-27 17:14 Jeffrey Rock
9. 2022-12-27 17:44 David Pike
10. 2022-12-27 18:09 Matus Tejiscak
11. 2022-12-27 18:29 K McGrath
12. 2022-12-27 22:02 Tibor Miseta
13. 2022-12-28 09:35 K McGrath
14. 2022-12-28 10:22 David Pike
15. 2022-12-28 11:25 Robert H. van Gent
16. 2023-01-01 12:38 Tibor Miseta
17. 2023-01-01 20:19 Robert H. van Gent
18. 2023-01-01 22:31 David Pike
19. 2023-01-02 04:01 Frank Reed
20. 2023-01-03 20:35 K McGrath
21. 2023-01-03 21:51 Tibor Miseta
22. 2023-01-04 19:17 David Pike
23. 2023-01-05 09:59 Tibor Miseta
24. 2023-01-05 19:09 David Pike
25. 2023-01-05 19:38 Frank Reed
26. 2023-01-06 20:58 K McGrath
27. 2023-01-06 21:27 David Pike
28. 2023-01-07 16:19 Tibor Miseta
29. 2023-01-07 23:11 David Pike

23 Dec 2022 – 10 Jan 2023 : Airport with an air museum in the news

1. 2022-12-23 15:28 Frank Reed
2. 2022-12-23 17:33 David Pike
3. 2022-12-23 20:47 David Pike
4. 2022-12-24 12:51 David Pike
5. 2022-12-24 18:01 Frank Reed
6. 2023-01-08 22:38 David Pike
7. 2023-01-09 15:39 Frank Reed
8. 2023-01-10 00:51 Frank Reed

10 Jan 2023 – 10 Jan 2023 : English Scientific Instrument Trade during the Industrial Revolution 1760-1851

1. 2023-01-10 11:10 Noell Wilson

01 Jan 2023 – 10 Jan 2023 : Bris sextant land use with artificial horizon

1. 2023-01-01 15:30 Edu Blanco
2. 2023-01-05 15:11 Frank Reed
3. 2023-01-06 00:24 Edu Blanco
4. 2023-01-06 02:05 David Fleming
5. 2023-01-06 16:40 Edu Blanco
6. 2023-01-06 17:10 Frank Reed
7. 2023-01-06 19:57 Edu Blanco
8. 2023-01-07 09:56 Brian Villmoare
9. 2023-01-07 19:52 Frank Reed
10. 2023-01-08 20:13 Greg Rudzinski
11. 2023-01-10 03:59 Brian Villmoare
12. 2023-01-10 21:54 Greg Rudzinski
13. 2023-01-10 22:07 Greg Rudzinski

09 Jan 2023 – 15 Jan 2023 : Re: Guyou's Two Methods

1. 2023-01-09 15:35 Michalis Vaidanis
2. 2023-01-10 15:21 Lars Bergman
3. 2023-01-15 17:27 Michalis Vaidanis

15 Jan 2023 – 17 Jan 2023 : Comet ZTF or WTF!?

1. 2023-01-15 21:40 Frank Reed
2. 2023-01-17 17:36 Russell D. Sampson

17 Jan 2023 – 17 Jan 2023 : Re: Compass directions and "North by Northwest"

1. 2023-01-17 17:50 Townsend Wentz Jr
2. 2023-01-17 17:54 Frank Reed

17 Jan 2023 – 17 Jan 2023 : Any Research on "False Horizons" Under the Moon?

1. 2023-01-17 06:53 David Iwancio
2. 2023-01-17 19:42 David Pike

15 Jan 2023 – 18 Jan 2023 : SNO-T sextant Galilean telescope

1. 2023-01-15 14:25 Modris Fersters
2. 2023-01-15 19:08 Bruce Cutting
3. 2023-01-15 19:18 Alexandre Eremenko
4. 2023-01-15 23:41 Tibor Miseta
5. 2023-01-16 03:50 Peter Monta
6. 2023-01-16 19:37 Modris Fersters
7. 2023-01-16 22:42 Bruce Cutting
8. 2023-01-16 22:54 Alexandre Eremenko
9. 2023-01-17 05:49 Modris Fersters
10. 2023-01-17 16:55 Alexandre Eremenko
11. 2023-01-17 17:26 Bruce Cutting
12. 2023-01-17 18:23 Modris Fersters
13. 2023-01-17 21:55 Alexandre Eremenko
14. 2023-01-17 22:05 Alexandre Eremenko
15. 2023-01-18 01:47 Bruce Cutting
16. 2023-01-18 01:55 Frank Reed
17. 2023-01-18 05:14 Alexandre Eremenko
18. 2023-01-18 05:28 Alexandre Eremenko

06 Jan 2023 – 21 Jan 2023 : Re: Freiberger Sextant Boxes

1. 2023-01-06 22:21 Werner Luehmann
2. 2023-01-07 04:08 Rafael C. Caruso
3. 2023-01-07 12:44 Werner Luehmann
4. 2023-01-07 17:41 K McGrath
5. 2023-01-21 16:19 K McGrath
6. 2023-01-21 18:59 Luc Van den Borre
7. 2023-01-21 23:07 K McGrath

19 Jan 2023 – 23 Jan 2023 : Sextant calibration by observations

1. 2023-01-19 19:53 Modris Fersters
2. 2023-01-19 21:38 Frank Reed
3. 2023-01-20 05:52 Alexandre Eremenko
4. 2023-01-21 09:39 Modris Fersters
5. 2023-01-21 09:42 Modris Fersters
6. 2023-01-21 17:47 Alexandre Eremenko
7. 2023-01-22 16:31 Modris Fersters
8. 2023-01-22 17:49 Bruce Cutting
9. 2023-01-22 18:43 Alexandre Eremenko
10. 2023-01-23 19:04 Modris Fersters
11. 2023-01-23 19:53 Modris Fersters
12. 2023-01-23 21:29 Bruce Cutting

11 Jan 2023 – 24 Jan 2023 : Artificial Horizon liquid?

1. 2023-01-11 07:14 Michael Josefsson
2. 2023-01-11 15:07 Greg Rudzinski
3. 2023-01-11 16:24 Ed Popko
4. 2023-01-11 16:40 Brian Villmoare
5. 2023-01-11 19:31 Frank Reed
6. 2023-01-11 19:53 Brian Villmoare
7. 2023-01-11 22:38 Greg Rudzinski
8. 2023-01-12 00:08 Brian Villmoare
9. 2023-01-12 01:42 David C
10. 2023-01-12 06:14 Gary LaPook
11. 2023-01-12 11:37 Michael Josefsson
12. 2023-01-12 18:48 Greg Rudzinski
13. 2023-01-24 09:57 Philippe Posth

25 Jan 2023 – 25 Jan 2023 : Watch for Kollsman periscopic octant

1. 2023-01-25 09:38 Joe Wong
2. 2023-01-25 21:23 Paul Loubris
3. 2023-01-25 21:51 Alexandre Eremenko
4. 2023-01-25 23:58 David Pike

25 Jan 2023 – 26 Jan 2023 : Russian book's chapter on sextant errors. Translation

1. 2023-01-25 19:44 Modris Fersters
2. 2023-01-25 22:22 Bruce Cutting
3. 2023-01-26 14:36 John Rizzuto

26 Jan 2023 – 26 Jan 2023 : NA Moon Hs Dec refresh

1. 2023-01-26 15:44 Ed Popko

26 Jan 2023 – 28 Jan 2023 : US GPO Nautical Almanac for 2023 is out of print

1. 2023-01-26 17:37 Ed Popko
2. 2023-01-27 03:55 Gary LaPook
3. 2023-01-27 07:05 Frank A
4. 2023-01-28 04:39 Frank Reed

27 Jan 2023 – 29 Jan 2023 : Camfield Brothers from England c.1760

1. 2023-01-27 00:51 Adrienne Camfield
2. 2023-01-29 04:13 Don Seltzer

30 Jan 2023 – 30 Jan 2023 : Modern Celestial: at Mystic Seaport, and Online...

1. 2023-01-30 20:05 Frank Reed

23 Jan 2023 – 01 Feb 2023 : Nautical Almanac calculator methods

1. 2023-01-23 17:49 Frank Reed
2. 2023-01-25 22:45 David Iwancio
3. 2023-01-25 23:27 David Iwancio
4. 2023-01-30 05:30 Frank Reed
5. 2023-02-01 14:14 Andrés Ruiz

06 Jan 2023 – 02 Feb 2023 : Wind turbines beyond the horizon

1. 2023-01-06 20:03 Frank Reed
2. 2023-01-07 17:23 Russell D. Sampson
3. 2023-01-07 21:30 Alexandre Eremenko
4. 2023-01-08 20:50 Frank Reed
5. 2023-01-09 10:01 David Pike
6. 2023-01-09 14:36 Frank Reed
7. 2023-01-10 00:06 Frank Reed
8. 2023-01-18 18:49 Frank Reed
9. 2023-01-20 09:50 Bill Ritchie
10. 2023-01-30 22:28 Louis Carrier
11. 2023-01-31 18:10 Frank Reed
12. 2023-02-02 20:10 Louis Carrier

29 Jan 2023 – 04 Feb 2023 : Altitude Ruler

1. 2023-01-29 16:51 K McGrath
2. 2023-01-29 20:04 David Pike
3. 2023-01-30 08:25 Gary LaPook
4. 2023-01-30 09:14 K McGrath
5. 2023-01-30 09:56 K McGrath
6. 2023-01-30 16:01 Art Leung
7. 2023-01-30 16:50 Art Leung
8. 2023-01-30 17:17 Bob Goethe
9. 2023-01-30 20:48 David Pike
10. 2023-01-31 08:04 K McGrath
11. 2023-02-01 22:11 Bill Morris
12. 2023-02-02 18:55 Art Leung
13. 2023-02-02 20:22 K McGrath
14. 2023-02-04 14:08 K McGrath

31 Jan 2023 – 05 Feb 2023 : Mars occultation or close approach tonight

1. 2023-01-31 04:18 Frank Reed
2. 2023-01-31 17:17 Russell D. Sampson
3. 2023-01-31 17:25 Russell D. Sampson
4. 2023-01-31 20:03 David Iwancio
5. 2023-02-04 17:52 Frank Reed
6. 2023-02-05 20:26 Russell D. Sampson
7. 2023-02-05 21:52 Frank Reed
8. 2023-02-05 23:06 Sean C

06 Feb 2023 – 06 Feb 2023 : GPS Anti Spoof app update available

1. 2023-02-06 14:58 Frank Reed

04 Feb 2023 – 06 Feb 2023 : Latitude of a Weird Monument

1. 2023-02-04 17:00 Frank Reed
2. 2023-02-05 14:37 Antoine Couëtte
3. 2023-02-06 14:55 Frank Reed
4. 2023-02-06 16:46 Antoine Couëtte
5. 2023-02-06 18:28 Frank Reed
6. 2023-02-06 23:33 Frank Reed

10 Feb 2023 – 10 Feb 2023 : Re: On slide rule

1. 2023-02-10 23:11 Alan S

08 Feb 2023 – 11 Feb 2023 : Eclipse timings and theodolite accuracy

1. 2023-02-08 16:58 Robin Stuart
2. 2023-02-09 02:15 Roger W. Sinnott
3. 2023-02-09 13:41 Robin Stuart
4. 2023-02-10 07:21 Sean C
5. 2023-02-11 13:55 Robin Stuart

06 Feb 2023 – 12 Feb 2023 : On slide rules

1. 2023-02-06 22:40 Alan S
2. 2023-02-07 00:40 Paul Dolkas
3. 2023-02-07 11:25 Gary LaPook
4. 2023-02-07 11:30 Gary LaPook
5. 2023-02-07 12:18 Gary LaPook
6. 2023-02-08 14:21 Art Leung
7. 2023-02-10 04:53 Robert VanderPol II
8. 2023-02-11 05:16 Alan S
9. 2023-02-12 00:15 Michalis Vaidanis

10 Feb 2023 – 12 Feb 2023 : Re: Celestial globe gores

1. 2023-02-10 19:14 K McGrath
2. 2023-02-10 19:48 Bob Goethe
3. 2023-02-10 22:25 K McGrath
4. 2023-02-11 05:19 Bob Goethe
5. 2023-02-12 01:46 Tibor Miseta
6. 2023-02-12 18:15 K McGrath

13 Feb 2023 – 13 Feb 2023 : Analemma over Mystic Seaport

1. 2023-02-13 19:23 Frank Reed

08 Feb 2023 – 14 Feb 2023 : Re: Chinese sextant GLH130-60

1. 2023-02-08 02:54 Noell Wilson
2. 2023-02-08 04:45 Alan S
3. 2023-02-14 17:55 Noell Wilson

16 Feb 2023 – 16 Feb 2023 : Horizon Attachment Link A-12 Sextant

1. 2023-02-16 14:33 David L Masters

17 Feb 2023 – 17 Feb 2023 : Validity of HO249 Vol. 1

1. 2023-02-17 15:10 Philippe Posth
2. 2023-02-17 17:09 Frank Reed

16 Feb 2023 – 18 Feb 2023 : Re: Chauvenet lunar distance method

1. 2023-02-16 19:43 Paul Hirose
2. 2023-02-18 20:59 Modris Fersters
3. 2023-02-18 22:16 Paul Hirose

06 Feb 2023 – 23 Feb 2023 : Francis Upchurch's Astra sextant...and my first lunar!

1. 2023-02-06 22:10 Jonathan Ho
2. 2023-02-07 09:22 Francis Upchurch
3. 2023-02-08 19:11 Jonathan Ho
4. 2023-02-09 09:07 Modris Fersters
5. 2023-02-14 21:57 Jonathan Ho
6. 2023-02-15 14:35 Frank Reed
7. 2023-02-15 20:06 Modris Fersters
8. 2023-02-23 14:02 Jonathan Ho
9. 2023-02-23 14:10 Jonathan Ho

21 Feb 2023 – 23 Feb 2023 : Celestial events, coming soon...

1. 2023-02-21 17:20 Frank Reed
2. 2023-02-21 22:38 Rafael C. Caruso
3. 2023-02-21 23:16 Rafael C. Caruso
4. 2023-02-22 09:58 Bill Ritchie
5. 2023-02-23 16:27 Frank Reed

23 Feb 2023 – 23 Feb 2023 : Modern Celestial at Mystic Seaport this weekend

1. 2023-02-23 18:54 Frank Reed

27 Feb 2023 – 27 Feb 2023 : Nautical Almanac

1. 2023-02-27 21:33 James F Campbell

13 Jan 2023 – 28 Feb 2023 : Upcoming Planets 2023 close encounters

1. 2023-01-13 06:51 Antoine Couëtte
2. 2023-01-13 10:59 Robert H. van Gent
3. 2023-01-27 13:16 Antoine Couëtte
4. 2023-01-28 15:21 Dave Walden
5. 2023-01-28 18:03 Robert H. van Gent
6. 2023-01-28 18:08 Robert H. van Gent
7. 2023-01-28 18:35 Frank Reed
8. 2023-01-28 20:23 Antoine Couëtte
9. 2023-01-29 12:38 Robert H. van Gent
10. 2023-01-30 16:28 Antoine Couëtte
11. 2023-02-28 00:43 Paul Hirose
12. 2023-02-28 03:46 Antoine Couëtte
13. 2023-02-28 20:00 Antoine Couëtte

01 Mar 2023 – 01 Mar 2023 : Venus & Jupiter in daylight today

1. 2023-03-01 15:51 Frank Reed

03 Mar 2023 – 03 Mar 2023 : Free: 'WoodenBoat' and 'Professional Boatbuilder'

1. 2023-03-03 18:31 Bob Peterson

04 Mar 2023 – 05 Mar 2023 : GPS AntiSpoof and SD contraction

1. 2023-03-04 14:20 Modris Fersters
2. 2023-03-05 01:39 Frank Reed

04 Mar 2023 – 05 Mar 2023 : Jd 2460000.0

1. 2023-03-04 20:21 Robin Stuart
2. 2023-03-05 01:56 Frank Reed

05 Mar 2023 – 05 Mar 2023 : Refilling an A10-A bubble

1. 2023-03-05 00:26 Greg Herdt
2. 2023-03-05 07:53 Gary LaPook
3. 2023-03-05 22:52 Greg Herdt

06 Mar 2023 – 07 Mar 2023 : Old copies Ho 229, HO 214, 211 etc

1. 2023-03-06 18:19 David Berson
2. 2023-03-07 02:32 Sean C
3. 2023-03-07 09:20 Jeremy C

06 Mar 2023 – 07 Mar 2023 : Nautical Almanac (orange cover) discontinued

1. 2023-03-06 19:44 Bob Peterson
2. 2023-03-07 09:22 Jeremy C
3. 2023-03-07 16:48 David Pike

02 Mar 2023 – 08 Mar 2023 : Surveying problem

1. 2023-03-02 17:37 Mike Burkes
2. 2023-03-02 17:42 Frank Reed
3. 2023-03-03 11:52 Lars Bergman
4. 2023-03-04 00:07 Mike Burkes
5. 2023-03-04 20:40 Lars Bergman
6. 2023-03-04 22:32 Mike Burkes
7. 2023-03-05 14:19 Mike Burkes
8. 2023-03-05 18:29 Lars Bergman
9. 2023-03-06 15:28 Mike Burkes
10. 2023-03-08 13:43 Mike Burkes

10 Mar 2023 – 11 Mar 2023 : Losing Trebizond

1. 2023-03-10 18:20 Frank Reed
2. 2023-03-11 08:20 Wolfgang Köberer

07 Mar 2023 – 11 Mar 2023 : Finding GMT/UT from Occultations

1. 2023-03-07 23:20 Ed Popko
2. 2023-03-10 13:58 Robin Stuart
3. 2023-03-10 19:28 Ed Popko
4. 2023-03-11 13:23 Robin Stuart
5. 2023-03-11 17:46 Ed Popko
6. 2023-03-11 22:45 Ed Popko

08 Mar 2023 – 12 Mar 2023 : Sight reduction - Ultra compact reloaded

1. 2023-03-08 14:52 Alain Geier
2. 2023-03-09 13:58 Greg Rudzinski
3. 2023-03-12 20:04 Alain Geier

01 Mar 2023 – 14 Mar 2023 : Submarine celestial through periscope

1. 2023-03-01 18:37 Paul Hirose
2. 2023-03-01 23:59 David Pike
3. 2023-03-02 00:53 Sean C
4. 2023-03-07 13:36 Andrés Ruiz
5. 2023-03-07 21:03 David Pike
6. 2023-03-08 10:10 Andrés Ruiz
7. 2023-03-10 08:23 Antoine Couëtte
8. 2023-03-11 11:40 David Pike
9. 2023-03-11 13:54 Frank Reed
10. 2023-03-13 08:49 Andrés Ruiz
11. 2023-03-13 20:16 Frank Reed
12. 2023-03-13 22:20 David Pike
13. 2023-03-14 00:33 David Pike
14. 2023-03-14 10:43 Andrés Ruiz
15. 2023-03-14 10:57 Andrés Ruiz
16. 2023-03-14 11:18 Andrés Ruiz

13 Mar 2023 – 15 Mar 2023 : USNO Julian Date Converter

1. 2023-03-13 16:48 Robin Stuart
2. 2023-03-13 20:46 Frank Reed
3. 2023-03-14 00:25 Sean C
4. 2023-03-14 01:06 Frank Reed
5. 2023-03-14 13:18 Robin Stuart
6. 2023-03-15 02:45 Sean C

15 Mar 2023 – 15 Mar 2023 : Re: On slide rule

1. 2023-03-15 22:59 Htom Trites

17 Mar 2023 – 17 Mar 2023 : Word of the day for a celestial sphere

1. 2023-03-17 19:06 Frank Reed

20 Mar 2023 – 20 Mar 2023 : History of astronomy

1. 2023-03-20 11:42 Dave Walden
2. 2023-03-20 16:18 David Pike
3. 2023-03-20 17:07 Frank Reed

15 Mar 2023 – 20 Mar 2023 : Charles W Morgan time sight

1. 2023-03-15 15:54 Ed Popko
2. 2023-03-16 15:05 Frank Reed
3. 2023-03-20 21:54 Lars Bergman

27 Feb 2023 – 21 Mar 2023 : Analogue recording hand-bearing compass??

1. 2023-02-27 16:06 David Pike
2. 2023-02-27 23:48 Bill Morris
3. 2023-03-01 09:54 David Pike
4. 2023-03-10 15:29 David Pike
5. 2023-03-10 17:28 Michalis Vaidanis
6. 2023-03-10 19:20 David Pike
7. 2023-03-13 18:21 Bob Peterson
8. 2023-03-13 22:50 David Pike
9. 2023-03-20 14:57 David Pike
10. 2023-03-20 20:00 Art Leung
11. 2023-03-21 10:41 David Pike

22 Mar 2023 – 24 Mar 2023 : Re: MAC sextant

1. 2023-03-22 23:17 Wendy Hitchins
2. 2023-03-23 01:49 Frank Reed
3. 2023-03-24 12:29 Dustin Baenen

24 Mar 2023 – 25 Mar 2023 : Odd USNO web app clone results

1. 2023-03-24 14:42 Ed Popko
2. 2023-03-24 16:53 Antoine Couëtte
3. 2023-03-24 17:36 Frank Reed
4. 2023-03-25 14:34 Frank Reed
5. 2023-03-25 16:33 Ed Popko
6. 2023-03-25 16:58 Sean C

26 Mar 2023 – 26 Mar 2023 : Venus in daylight

1. 2023-03-26 18:01 Frank Reed

26 Mar 2023 – 26 Mar 2023 : ADMIN: missing messages?

1. 2023-03-26 20:51 Frank Reed

06 Mar 2023 – 27 Mar 2023 : Tilt angle sensing for use as a sextant

1. 2023-03-06 17:33 Jim Hickey
2. 2023-03-27 04:59 Paul Dolkas

28 Feb 2023 – 27 Mar 2023 : Stellarium and Delta-T insanity

1. 2023-02-28 14:25 Frank Reed
2. 2023-03-01 05:03 Alexander Wolf
3. 2023-03-01 09:23 Antoine Couëtte
4. 2023-03-25 18:10 Frank Reed
5. 2023-03-27 07:02 Alexander Wolf

20 Mar 2023 – 27 Mar 2023 : Definition of the equinox

1. 2023-03-20 17:13 Frank Reed
2. 2023-03-21 02:33 Sean C
3. 2023-03-22 03:21 Sean C
4. 2023-03-22 04:09 Frank Reed
5. 2023-03-22 15:27 Antoine Couëtte
6. 2023-03-22 18:10 Bela Kovacs
7. 2023-03-22 18:44 Gary LaPook
8. 2023-03-23 01:37 Frank Reed
9. 2023-03-23 08:50 Antoine Couëtte
10. 2023-03-27 16:22 James F Campbell
11. 2023-03-27 17:04 Frank Reed

28 Mar 2023 – 28 Mar 2023 : H.O. 214 volumes 1-10

1. 2023-03-28 19:30 Frank Reed

28 Mar 2023 – 29 Mar 2023 : Black USAAF navigators in WW2

1. 2023-03-28 23:27 Paul Hirose
2. 2023-03-29 15:34 David Pike

29 Mar 2023 – 29 Mar 2023 : Old C. Plath Sextant

1. 2023-03-29 18:01 Brent Evers

01 Apr 2023 – 01 Apr 2023 : Venus +ONE: fast fix in daylight

1. 2023-04-01 16:50 Frank Reed

28 Mar 2023 – 02 Apr 2023 : Practical limits to distance off by VSA

1. 2023-03-28 09:57 David McN
2. 2023-03-28 19:58 David Iwancio
3. 2023-03-29 14:02 David Pike
4. 2023-03-29 16:40 Frank Reed
5. 2023-03-29 17:02 David Pike
6. 2023-03-29 18:14 Frank Reed
7. 2023-03-29 20:48 David Pike
8. 2023-03-29 21:44 David McN
9. 2023-04-01 16:16 David Pike
10. 2023-04-01 23:00 David McN
11. 2023-04-02 18:57 David Pike
12. 2023-04-02 22:08 David McN

01 Apr 2023 – 03 Apr 2023 : Pseudo-sextants

1. 2023-04-01 15:11 Frank Reed
2. 2023-04-01 16:47 David Pike
3. 2023-04-02 14:03 Bob Peterson
4. 2023-04-02 15:47 Alexandre Eremenko
5. 2023-04-02 18:40 David Pike
6. 2023-04-03 01:02 Howard G
7. 2023-04-03 05:54 Kees Sassen

25 Mar 2023 – 03 Apr 2023 : ChatGPT taking over management of NavList

1. 2023-03-25 22:12 Frank Reed
2. 2023-03-26 01:53 Frank Reed
3. 2023-03-26 04:42 Sean C
4. 2023-04-03 12:59 Noell Wilson
5. 2023-04-03 13:50 Ed Popko

03 Apr 2023 – 04 Apr 2023 : My first lunar

1. 2023-04-03 18:06 Art Leung
2. 2023-04-03 19:00 Frank Reed
3. 2023-04-03 19:15 Alexandre Eremenko
4. 2023-04-03 19:50 Art Leung
5. 2023-04-03 21:31 Art Leung
6. 2023-04-03 23:00 Ken Muldrew
7. 2023-04-03 23:13 Frank Reed
8. 2023-04-03 23:59 Alexandre Eremenko
9. 2023-04-04 07:37 Michael Bradley
10. 2023-04-04 17:29 Art Leung
11. 2023-04-04 18:15 Modris Fersters

05 Apr 2023 – 05 Apr 2023 : Grassy Island Range Lights.

1. 2023-04-05 12:18 Dustin Baenen

03 Apr 2023 – 05 Apr 2023 : Why Apps/Tools does not work on reednavigation.com

1. 2023-04-03 07:29 Modris Fersters
2. 2023-04-03 19:34 Frank Reed
3. 2023-04-04 14:37 Lars Bergman
4. 2023-04-04 15:55 Frank Reed
5. 2023-04-04 16:50 Herman Dekker
6. 2023-04-04 17:03 Lars Bergman
7. 2023-04-05 10:14 Herman Dekker
8. 2023-04-05 14:43 Frank Reed
9. 2023-04-05 18:53 Huub Robroek
10. 2023-04-05 20:47 Frank Reed

04 Apr 2023 – 07 Apr 2023 : There are nav aids and then there are nav aids

1. 2023-04-04 13:44 Ed Popko
2. 2023-04-04 15:06 Frank Reed
3. 2023-04-06 21:00 Alan S
4. 2023-04-07 11:56 Ed Popko

05 Apr 2023 – 07 Apr 2023 : My second lunar

1. 2023-04-05 14:28 Art Leung
2. 2023-04-05 16:24 Frank Reed
3. 2023-04-05 17:23 Art Leung
4. 2023-04-05 19:56 Art Leung
5. 2023-04-06 16:58 Frank Reed
6. 2023-04-07 13:16 Art Leung

09 Apr 2023 – 09 Apr 2023 : Sell C. Plath Navistar Classic

1. 2023-04-09 17:37 Jake Klara

06 Apr 2023 – 09 Apr 2023 : More Regulus-Moon (Near) Lunar Fun

1. 2023-04-06 23:22 Greg Herdt
2. 2023-04-07 01:31 Ken Muldrew
3. 2023-04-07 13:00 Robin Stuart
4. 2023-04-07 19:40 Paul Hirose
5. 2023-04-07 22:25 Greg Herdt
6. 2023-04-08 00:16 Greg Herdt
7. 2023-04-08 00:23 Greg Herdt
8. 2023-04-09 19:18 Frank Reed

09 Apr 2023 – 09 Apr 2023 : Re: Artificial Horizon liquid?

1. 2023-04-09 20:13 Andy Visser

10 Apr 2023 – 10 Apr 2023 : Bangle.js watch / Javascript ephemeris

1. 2023-04-10 09:48 Bill Lionheart
2. 2023-04-10 15:35 Frank Reed
3. 2023-04-10 20:26 Bill Ritchie
4. 2023-04-10 22:04 Dave Walden

01 Apr 2023 – 11 Apr 2023 : What did Horrocks do?

1. 2023-04-01 20:15 Frank Reed
2. 2023-04-02 00:44 Frank Reed
3. 2023-04-02 03:38 Alexandre Eremenko
4. 2023-04-02 03:47 Alexandre Eremenko
5. 2023-04-02 08:26 Wolfgang Köberer
6. 2023-04-02 13:10 Frank Reed
7. 2023-04-02 14:02 Alexandre Eremenko
8. 2023-04-02 15:38 Frank Reed
9. 2023-04-02 16:22 Alexandre Eremenko
10. 2023-04-02 19:20 Sean C
11. 2023-04-02 20:39 Alexandre Eremenko
12. 2023-04-03 00:22 Alan S
13. 2023-04-03 14:53 James F Campbell
14. 2023-04-11 16:01 Frank Reed

16 Apr 2023 – 16 Apr 2023 : Longitude by Lunar Eclipse

1. 2023-04-16 18:00 Frank Reed

12 Apr 2023 – 17 Apr 2023 : A question regarding a series of sextant sights

1. 2023-04-12 16:32 Rafael C. Caruso
2. 2023-04-13 14:22 Frank Reed
3. 2023-04-14 13:18 Rafael C. Caruso
4. 2023-04-14 20:07 Frank Reed
5. 2023-04-17 16:56 Rafael C. Caruso

13 Apr 2023 – 18 Apr 2023 : ADMIN: NavList emails of individual posts

1. 2023-04-13 19:21 Frank Reed
2. 2023-04-18 17:12 Frank Reed

18 Apr 2023 – 19 Apr 2023 : Sextant certificate

1. 2023-04-18 19:48 Modris Fersters
2. 2023-04-18 22:59 Alexandre Eremenko
3. 2023-04-19 14:44 Jeremy C

19 Apr 2023 – 22 Apr 2023 : Index arm angle for Artificial Horizon sights

1. 2023-04-19 01:31 Frank Reed
2. 2023-04-19 16:37 David Fleming
3. 2023-04-19 17:50 Chuck Varney
4. 2023-04-19 19:46 Frank Reed
5. 2023-04-19 20:10 Frank Reed
6. 2023-04-19 21:23 David Pike
7. 2023-04-19 23:54 Chuck Varney
8. 2023-04-20 00:08 Chuck Varney
9. 2023-04-20 14:04 David Pike
10. 2023-04-21 19:27 Frank Reed
11. 2023-04-22 18:35 Chuck Varney

22 Apr 2023 – 22 Apr 2023 : Celestial nav course at MITAGS

1. 2023-04-22 19:12 Paul Hirose

28 Apr 2023 – 28 Apr 2023 : ADMIN: we are NavList.net

1. 2023-04-28 03:40 Frank Reed

02 May 2023 – 02 May 2023 : ADMIN: NavList conversation view

1. 2023-05-02 20:51 Frank Reed

28 Apr 2023 – 02 May 2023 : Astra IIIb Horizon Shades Adjustment

1. 2023-04-28 18:27 Doug MacPherson
2. 2023-04-29 14:39 Frank Reed
3. 2023-04-29 16:47 Doug MacPherson
4. 2023-04-30 18:33 Sean C
5. 2023-05-01 00:21 Doug MacPherson
6. 2023-05-02 02:56 Sean C
7. 2023-05-02 06:36 Bela Kovacs
8. 2023-05-02 21:00 Noell Wilson

03 May 2023 – 05 May 2023 : "Easy Lunars" Moon and Sun altitude corrections

1. 2023-05-03 20:11 Sergei Akatiev
2. 2023-05-04 05:25 Frank Reed
3. 2023-05-05 19:06 Modris Fersters

05 May 2023 – 05 May 2023 : Land & Sea Collection recent items

1. 2023-05-05 21:26 Paul Hirose

02 May 2023 – 07 May 2023 : Celestial Navigation in the Age of Sail, June 2023 at Mystic Seaport

1. 2023-05-02 16:58 Frank Reed
2. 2023-05-06 20:42 Steve Roth
3. 2023-05-07 00:57 Frank Reed

08 May 2023 – 08 May 2023 : Pepys and his watch and technological change

1. 2023-05-08 15:19 Frank Reed

02 May 2023 – 08 May 2023 : Re: Letcher's Lunars Math

1. 2023-05-02 22:18 Yvon Massé
2. 2023-05-03 14:49 Frank Reed
3. 2023-05-03 19:38 Yvon Massé
4. 2023-05-08 16:09 Frank Reed

09 May 2023 – 09 May 2023 : Latitude Wheeler Q Data Update

1. 2023-05-09 13:58 Greg Rudzinski

08 May 2023 – 10 May 2023 : Polynesian Wayfaring

1. 2023-05-08 15:38 Chris Post
2. 2023-05-09 12:52 Frank Reed
3. 2023-05-10 09:17 Pierre Vern

09 May 2023 – 10 May 2023 : Polynesian Wayfaring Latitude Puzzle

1. 2023-05-09 14:42 Frank Reed
2. 2023-05-09 17:40 Antoine Couëtte
3. 2023-05-10 18:46 Frank Reed

26 Apr 2023 – 14 May 2023 : Lunar4.4. vs Frank's online calculator

1. 2023-04-26 19:34 Modris Fersters
2. 2023-04-27 06:41 Paul Hirose
3. 2023-04-28 17:12 Antoine Couëtte
4. 2023-04-28 18:31 Frank Reed
5. 2023-04-28 20:13 Modris Fersters
6. 2023-04-29 00:50 Dave Walden
7. 2023-04-29 20:52 Paul Hirose
8. 2023-04-30 20:26 Frank Reed
9. 2023-05-01 10:37 Antoine Couëtte
10. 2023-05-01 10:56 Antoine Couëtte
11. 2023-05-01 14:24 Frank Reed
12. 2023-05-02 01:19 Sean C
13. 2023-05-04 18:28 Modris Fersters
14. 2023-05-05 07:27 Paul Hirose
15. 2023-05-05 14:28 Frank Reed
16. 2023-05-05 19:12 Antoine Couëtte
17. 2023-05-05 20:48 Paul Hirose
18. 2023-05-06 18:26 Modris Fersters
19. 2023-05-08 17:01 Frank Reed
20. 2023-05-08 19:16 Frank Reed
21. 2023-05-10 19:47 Modris Fersters
22. 2023-05-12 03:22 Frank Reed
23. 2023-05-13 04:49 Antoine Couëtte
24. 2023-05-13 19:44 Htom Trites
25. 2023-05-14 17:31 Frank Reed

10 May 2023 – 14 May 2023 : NavList Download For Sale?

1. 2023-05-10 09:16 Stuart T
2. 2023-05-11 13:37 David Pike
3. 2023-05-11 14:24 Frank Reed
4. 2023-05-12 13:41 Frank Reed
5. 2023-05-12 18:09 Fred Hebard
6. 2023-05-12 18:13 Fred Hebard
7. 2023-05-13 09:53 David C
8. 2023-05-13 21:21 David C
9. 2023-05-13 21:36 David C
10. 2023-05-13 21:39 David C
11. 2023-05-14 10:26 David Pike
12. 2023-05-14 18:56 Stuart T

13 May 2023 – 15 May 2023 : Lunar vs. Occult software test

1. 2023-05-13 05:47 Paul Hirose
2. 2023-05-15 02:49 Frank Reed

15 May 2023 – 15 May 2023 : Celestial Navigation: Present Status, Future Prospects

1. 2023-05-15 15:09 Bob Goethe

15 May 2023 – 17 May 2023 : Bethia/Bounty Is she, isn't she?

1. 2023-05-15 16:20 David Pike
2. 2023-05-17 09:03 Roger Puttman
3. 2023-05-17 14:24 David Pike

16 May 2023 – 17 May 2023 : Lunar distance clearing problem

1. 2023-05-16 18:26 max mulhern
2. 2023-05-17 20:34 Frank Reed

18 May 2023 – 18 May 2023 : Celestial Navigation Workshops in June

1. 2023-05-18 15:57 Frank Reed

17 May 2023 – 18 May 2023 : Re: Lunars arcsecond differences

1. 2023-05-17 08:00 Modris Fersters
2. 2023-05-17 08:45 Modris Fersters
3. 2023-05-17 16:48 Antoine Couëtte
4. 2023-05-18 18:33 Modris Fersters

05 May 2023 – 18 May 2023 : Daylight Venus sight prediction

1. 2023-05-05 02:43 Jan Eckert
2. 2023-05-07 01:48 Frank Reed
3. 2023-05-07 11:47 Tibor Miseta
4. 2023-05-07 14:49 Modris Fersters
5. 2023-05-16 21:13 Jan Eckert
6. 2023-05-16 21:23 Jan Eckert
7. 2023-05-18 03:54 Paul Hirose
8. 2023-05-18 19:13 Modris Fersters

18 May 2023 – 21 May 2023 : Celesticomp V navigation computer

1. 2023-05-18 02:39 Mark Barnard
2. 2023-05-18 08:37 Ian Gifford
3. 2023-05-20 01:31 Mark Barnard
4. 2023-05-20 21:22 Gene Roll
5. 2023-05-21 09:59 Ian Gifford

21 May 2023 – 23 May 2023 : Lunars: Point of contact between two celestial bodies

1. 2023-05-21 17:52 Modris Fersters
2. 2023-05-23 17:10 Frank Reed

23 May 2023 – 23 May 2023 : Lunars at Mystic Seaport, June 10-11

1. 2023-05-23 17:37 Frank Reed

14 May 2023 – 23 May 2023 : Distant Horizon

1. 2023-05-14 20:27 Homer Smith
2. 2023-05-17 10:13 David Pike
3. 2023-05-17 22:19 Frank Reed
4. 2023-05-18 07:27 Herman Dekker
5. 2023-05-19 02:17 Frank Reed
6. 2023-05-19 18:31 Paul Hirose
7. 2023-05-20 07:14 Herman Dekker
8. 2023-05-20 22:29 Homer Smith
9. 2023-05-23 17:44 Frank Reed

25 May 2023 – 26 May 2023 : Has anyone ever heard of a 'Shooting Clock'

1. 2023-05-25 07:40 David Pike
2. 2023-05-26 13:48 Frank Reed

27 May 2023 – 27 May 2023 : Daylight Venus Lunar

1. 2023-05-27 03:36 Frank Reed
2. 2023-05-27 18:26 Antoine Couëtte

29 May 2023 – 29 May 2023 : Star finders and navigation stars

1. 2023-05-29 02:22 Howard G

25 May 2023 – 29 May 2023 : Position fix by satellite observation

1. 2023-05-25 16:11 Frank Reed
2. 2023-05-25 16:40 Frank Reed
3. 2023-05-25 18:15 Frank Reed
4. 2023-05-26 03:00 Sean C
5. 2023-05-26 15:39 Frank Reed
6. 2023-05-26 16:48 Don Seltzer
7. 2023-05-26 23:51 Chuck Varney
8. 2023-05-28 00:09 Art Leung
9. 2023-05-29 02:31 Richard Easton

30 May 2023 – 31 May 2023 : ChatGPT knows its sextants

1. 2023-05-30 18:58 Frank Reed
2. 2023-05-31 01:42 Frank Reed

31 May 2023 – 31 May 2023 : Priority of Sun in Lunar Distance tables

1. 2023-05-31 13:36 Andrew Bauer
2. 2023-05-31 14:07 Frank Reed
3. 2023-05-31 19:24 Modris Fersters

26 May 2023 – 31 May 2023 : An old Russian sextant certificate

1. 2023-05-26 15:18 Frank Reed
2. 2023-05-26 17:56 R. Zitkuil
3. 2023-05-28 12:26 Lars Bergman
4. 2023-05-28 19:55 Modris Fersters
5. 2023-05-29 14:22 Rafael C. Caruso
6. 2023-05-29 16:02 Lars Bergman
7. 2023-05-30 19:47 Lars Bergman
8. 2023-05-31 05:31 Modris Fersters
9. 2023-05-31 15:02 Lars Bergman
10. 2023-05-31 22:01 Rafael C. Caruso

30 May 2023 – 01 Jun 2023 : Owen Gingerich

1. 2023-05-30 02:02 Frank Reed
2. 2023-06-01 20:45 Paul Saffo

19 May 2023 – 02 Jun 2023 : USN MkII Sextant Telescope lens coatings and cleaning?

1. 2023-05-19 21:53 Todd Spath
2. 2023-05-23 16:16 Carsten John
3. 2023-05-24 00:36 Todd Spath
4. 2023-05-30 17:37 Carsten John
5. 2023-06-01 01:03 Todd Spath
6. 2023-06-02 18:18 Todd Spath

01 Jun 2023 – 03 Jun 2023 : Gnomonic North Atlantic

1. 2023-06-01 17:01 Frank Reed
2. 2023-06-01 18:57 Chuck Varney
3. 2023-06-01 23:19 Frank Reed
4. 2023-06-02 07:28 Bob Crawley
5. 2023-06-02 15:32 NavList Visitor
6. 2023-06-02 16:15 Frank Reed
7. 2023-06-02 17:42 Gary LaPook
8. 2023-06-03 04:28 Peter Hakel

05 Jun 2023 – 05 Jun 2023 : Lunars workshop on-site at Mystic Seaport June 10-11

1. 2023-06-05 13:37 Frank Reed

07 Jun 2023 – 07 Jun 2023 : Quantum Insider: Royal Navy Says Quantum Navigation Test a Success

1. 2023-06-07 19:55 Paul Saffo
2. 2023-06-07 21:59 Frank Reed
3. 2023-06-07 23:10 Paul Saffo

31 May 2023 – 10 Jun 2023 : Western Europe watch face

1. 2023-05-31 15:09 Frank Reed
2. 2023-05-31 16:12 Antoine Couëtte
3. 2023-05-31 16:27 NavList Visitor
4. 2023-05-31 18:14 Murray Buckman
5. 2023-05-31 20:18 Luc Van den Borre
6. 2023-05-31 22:16 Murray Buckman
7. 2023-05-31 23:10 Rafael C. Caruso
8. 2023-06-01 23:10 Frank Reed
9. 2023-06-10 10:58 Luc Van den Borre

16 Jun 2023 – 16 Jun 2023 : "Hope is a Ghost Island"

1. 2023-06-16 05:32 David Iwancio

08 Jun 2023 – 16 Jun 2023 : Stars in pop culture: two celestial where-are-you puzzles

1. 2023-06-08 15:05 Frank Reed
2. 2023-06-08 23:25 Drago Simac
3. 2023-06-10 11:18 Frank Reed
4. 2023-06-10 15:16 Antoine Couëtte
5. 2023-06-10 21:00 Rafael C. Caruso
6. 2023-06-10 23:42 David Pike
7. 2023-06-11 03:00 Frank Reed
8. 2023-06-11 09:13 David Pike
9. 2023-06-12 15:51 David Pike
10. 2023-06-13 12:46 David Pike
11. 2023-06-16 01:10 Frank Reed
12. 2023-06-16 14:34 Frank Reed

16 Jun 2023 – 16 Jun 2023 : Earth's axis tilted by a glass of water

1. 2023-06-16 16:45 Frank Reed

17 Jun 2023 – 17 Jun 2023 : Time balls, US War Department, 1881

1. 2023-06-17 13:07 Paul Hirose

18 Jun 2023 – 18 Jun 2023 : Octant, lunar distance, time signal, & meridian circle history

1. 2023-06-18 22:13 Paul Hirose

18 Jun 2023 – 19 Jun 2023 : My Advanced Celestial workshop, online this week

1. 2023-06-18 19:27 Frank Reed
2. 2023-06-18 23:26 Frank Reed
3. 2023-06-19 19:46 Frank Reed

31 May 2023 – 20 Jun 2023 : How to Fly an A350 over the North Pole

1. 2023-05-31 12:12 NavList Visitor
2. 2023-05-31 18:40 Hewitt Schlereth
3. 2023-06-20 21:54 Mike Burkes

02 Jun 2023 – 21 Jun 2023 : Spare pegs for sun shades old cassen & plath sextant 1975

1. 2023-06-02 12:46 Bo Palaszewski
2. 2023-06-03 04:45 David C
3. 2023-06-10 11:29 Luc Van den Borre
4. 2023-06-12 20:01 Art Leung
5. 2023-06-21 13:48 Noell Wilson

23 Jun 2023 – 23 Jun 2023 : Navigation in the ocean abyss

1. 2023-06-23 21:33 Frank Reed

24 Jun 2023 – 24 Jun 2023 : Correction HTU

1. 2023-06-24 10:03 Philippe Posth
2. 2023-06-24 15:58 Philippe Posth

23 Jun 2023 – 24 Jun 2023 : Celestaire website? Please test access and report back

1. 2023-06-23 00:11 Frank Reed
2. 2023-06-23 00:26 NavList Visitor
3. 2023-06-23 02:31 Drago Simac
4. 2023-06-23 04:16 David McN
5. 2023-06-23 05:38 Alexandre Eremenko
6. 2023-06-23 06:09 Andy Howse
7. 2023-06-23 07:47 NavList Visitor
8. 2023-06-23 08:49 David C
9. 2023-06-23 09:14 Martin Whittle
10. 2023-06-23 09:39 Örjan Sandström
11. 2023-06-23 13:26 Francis Upchurch
12. 2023-06-23 16:51 Frank Reed
13. 2023-06-23 20:27 NavList Visitor
14. 2023-06-24 01:26 Tim Vetang
15. 2023-06-24 22:01 Bill Ritchie

26 Jun 2023 – 26 Jun 2023 : TKSST educational videos website

1. 2023-06-26 07:48 David Pike

30 Jun 2023 – 30 Jun 2023 : Sunspots in your sextant

1. 2023-06-30 15:49 Frank Reed

23 Jun 2023 – 30 Jun 2023 : Polaris plus one

1. 2023-06-23 18:19 Frank Reed
2. 2023-06-24 15:24 Antoine Couëtte
3. 2023-06-24 17:18 Kurt H
4. 2023-06-25 13:43 Kurt H
5. 2023-06-25 18:42 Roger Errington Jr.
6. 2023-06-26 03:11 Carolyn Harrington
7. 2023-06-26 12:17 Herman Dekker
8. 2023-06-26 14:42 Roger Errington Jr.
9. 2023-06-26 21:44 Kurt H
10. 2023-06-27 03:16 Frank Reed
11. 2023-06-28 14:07 Huub Robroek
12. 2023-06-28 23:00 Frank Reed
13. 2023-06-28 23:30 Frank Reed
14. 2023-06-28 23:36 Frank Reed
15. 2023-06-28 23:56 Frank Reed
16. 2023-06-28 23:58 Frank Reed
17. 2023-06-29 00:06 Frank Reed
18. 2023-06-29 19:08 Lars Bergman
19. 2023-06-30 17:14 Antoine Couëtte

21 Jun 2023 – 01 Jul 2023 : Smoke on the Water

1. 2023-06-21 22:07 Todd Spath
2. 2023-06-30 16:00 Frank Reed
3. 2023-07-01 12:48 Todd Spath

03 Jun 2023 – 02 Jul 2023 : Port Chalmers Time Ball

1. 2023-06-03 05:07 Robin Stuart
2. 2023-06-04 11:37 Dave Walden
3. 2023-06-04 17:54 David Pike
4. 2023-06-04 23:11 Rafael C. Caruso
5. 2023-06-07 17:07 Frank Reed
6. 2023-06-07 20:15 David Pike
7. 2023-06-08 04:25 David C
8. 2023-06-08 04:36 David C
9. 2023-06-08 05:09 David C
10. 2023-06-08 16:04 Adrian F
11. 2023-06-08 17:32 Robin Stuart
12. 2023-06-08 22:26 Rafael C. Caruso
13. 2023-06-09 02:50 David C
14. 2023-06-09 03:05 David C
15. 2023-06-09 03:14 David C
16. 2023-06-09 03:29 David C
17. 2023-06-09 04:40 David C
18. 2023-06-16 14:46 Frank Reed
19. 2023-06-16 15:36 Frank Reed
20. 2023-06-17 09:32 Wolfgang Köberer
21. 2023-06-17 19:14 Robin Stuart
22. 2023-07-02 05:16 David McN

30 Jun 2023 – 02 Jul 2023 : Puzzle continues: After Capella, Vega behind your back

1. 2023-06-30 18:12 Frank Reed
2. 2023-06-30 19:05 Antoine Couëtte
3. 2023-06-30 21:11 Herman Dekker
4. 2023-07-01 04:42 Antoine Couëtte
5. 2023-07-01 10:39 Lars Bergman
6. 2023-07-01 19:55 Herman Dekker
7. 2023-07-02 07:08 Antoine Couëtte

03 Jul 2023 – 04 Jul 2023 : Nautical Almanac homemade starfinder

1. 2023-07-03 03:49 Frank Reed
2. 2023-07-04 03:35 Frank Reed

06 Jul 2023 – 06 Jul 2023 : Brown's Star Atlas 1914 ebay

1. 2023-07-06 00:01 Frank Reed
2. 2023-07-06 03:11 Dave Walden

05 Jul 2023 – 06 Jul 2023 : Re: Polaris plus one For Huub Robroek

1. 2023-07-05 19:45 Herman Dekker
2. 2023-07-06 10:07 Huub Robroek

07 Jul 2023 – 07 Jul 2023 : Flat Bygrave

1. 2023-07-07 03:49 Alan S
2. 2023-07-07 05:19 Gary LaPook
3. 2023-07-07 07:14 Herman Dekker
4. 2023-07-07 11:39 Tibor Miseta
5. 2023-07-07 11:56 Tibor Miseta

08 Jul 2023 – 08 Jul 2023 : Celestial-based sensor system SkyPASS

1. 2023-07-08 10:30 Huub Robroek
2. 2023-07-08 17:49 Frank Reed

30 Jun 2023 – 09 Jul 2023 : Another puzzle: Capella below the pole and Venus on the horizon

1. 2023-06-30 17:52 Frank Reed
2. 2023-06-30 22:02 Huub Robroek
3. 2023-07-01 15:17 Huub Robroek
4. 2023-07-02 08:50 Frank Reed
5. 2023-07-02 18:30 Lars Bergman
6. 2023-07-02 21:59 Michael Bradley
7. 2023-07-03 08:42 Huub Robroek
8. 2023-07-09 16:27 Kurt H
9. 2023-07-09 16:41 Kurt H

11 Jul 2023 – 11 Jul 2023 : Dead Reckoning: an impossible ety-mythology

1. 2023-07-11 00:22 Frank Reed

11 Jul 2023 – 14 Jul 2023 : History of refraction and other altitude corrections

1. 2023-07-11 15:14 Roger Errington Jr.
2. 2023-07-11 17:08 David Fleming
3. 2023-07-11 20:01 Alexandre Eremenko
4. 2023-07-11 20:23 Roger Errington Jr.
5. 2023-07-12 06:36 David Iwancio
6. 2023-07-12 14:41 Roger Errington Jr.
7. 2023-07-13 22:33 Frank Reed
8. 2023-07-14 05:41 Frank Reed

13 Jul 2023 – 14 Jul 2023 : Bygrave Slide Rule – Manual dexterity aspects

1. 2023-07-13 21:23 Bill Ritchie
2. 2023-07-14 14:09 Brian Walton

08 Jul 2023 – 14 Jul 2023 : LHA Aries on a clock

1. 2023-07-08 05:42 David McN
2. 2023-07-08 17:07 Frank Reed
3. 2023-07-14 21:09 John Pinto

15 Jul 2023 – 15 Jul 2023 : Time ball on New York Times Building

1. 2023-07-15 20:51 Paul Hirose

10 Jul 2023 – 16 Jul 2023 : Moon coordinates from NASA Scientific Visualization Studio

1. 2023-07-10 04:43 Frank Reed
2. 2023-07-15 20:50 Paul Hirose
3. 2023-07-16 03:20 Frank Reed
4. 2023-07-16 03:57 David Iwancio

14 Jul 2023 – 17 Jul 2023 : Introduction to Modern Astrometry

1. 2023-07-14 19:27 John Pinto
2. 2023-07-15 12:14 Dave Walden
3. 2023-07-15 20:10 John Pinto
4. 2023-07-16 12:12 Dave Walden
5. 2023-07-16 20:42 Paul Hirose
6. 2023-07-17 11:13 John Pinto
7. 2023-07-17 14:48 Dave Walden

18 Jul 2023 – 19 Jul 2023 : Date this star chart

1. 2023-07-18 15:25 Frank Reed
2. 2023-07-19 07:39 Antoine Couëtte
3. 2023-07-19 13:31 Antoine Couëtte
4. 2023-07-19 14:41 Frank Reed
5. 2023-07-19 21:00 Frank Reed

20 Jul 2023 – 20 Jul 2023 : Godsave Hour Angle Difference Tables

1. 2023-07-20 03:50 David C

02 Jul 2023 – 21 Jul 2023 : 2024 Nautical Almanac

1. 2023-07-02 22:55 Nick M
2. 2023-07-03 06:51 David Iwancio
3. 2023-07-03 07:49 Frank Reed
4. 2023-07-07 02:27 Rafael C. Caruso
5. 2023-07-07 20:22 Frank Reed
6. 2023-07-07 20:43 Bob Peterson
7. 2023-07-21 19:23 James F Campbell
8. 2023-07-21 20:09 Herman Dekker

21 Jul 2023 – 25 Jul 2023 : Air navigation and polar exploration

1. 2023-07-21 01:12 Howard G
2. 2023-07-21 05:53 Gary LaPook
3. 2023-07-21 06:00 Gary LaPook
4. 2023-07-21 18:41 NavList Visitor
5. 2023-07-21 22:23 David C
6. 2023-07-22 22:20 David Pike
7. 2023-07-23 13:47 Howard G
8. 2023-07-23 16:54 Art Leung
9. 2023-07-23 19:56 Luc Van den Borre
10. 2023-07-24 21:06 Art Leung
11. 2023-07-24 21:22 Paul Hirose
12. 2023-07-25 12:48 Adrian F
13. 2023-07-25 17:52 Adrian F

24 Jun 2023 – 26 Jul 2023 : Abney Level Calibration

1. 2023-06-24 17:52 Marty Lyons
2. 2023-06-25 15:06 Frank Reed
3. 2023-06-25 18:30 Marty Lyons
4. 2023-06-27 18:29 Frank Reed
5. 2023-06-27 23:37 Marty Lyons
6. 2023-06-28 01:19 Chuck Varney
7. 2023-06-28 12:26 Marty Lyons
8. 2023-06-29 02:03 Frank Reed
9. 2023-06-29 20:17 Marty Lyons
10. 2023-06-29 21:19 Chuck Varney
11. 2023-06-29 21:54 Chuck Varney
12. 2023-06-30 01:23 Marty Lyons
13. 2023-06-30 04:19 Frank Reed
14. 2023-06-30 12:56 Marty Lyons
15. 2023-06-30 20:43 Chuck Varney
16. 2023-07-14 22:49 Noell Wilson
17. 2023-07-15 21:42 Chuck Varney
18. 2023-07-26 16:21 Noell Wilson

28 Jul 2023 – 28 Jul 2023 : GPS Anti Spoof app: update released

1. 2023-07-28 14:28 Frank Reed

02 Aug 2023 – 03 Aug 2023 : Lunar surface sun compass

1. 2023-08-02 05:59 Dave Bohlmann
2. 2023-08-02 18:20 Gary LaPook
3. 2023-08-02 18:27 Gary LaPook
4. 2023-08-02 18:31 Gary LaPook
5. 2023-08-03 01:53 Dave Bohlmann
6. 2023-08-03 02:41 Frank Reed
7. 2023-08-03 03:01 Dave Bohlmann
8. 2023-08-03 21:06 Gary LaPook

30 Jul 2023 – 06 Aug 2023 : Position fix by visual satellite pass

1. 2023-07-30 21:09 Frank Reed
2. 2023-07-31 01:37 Antoine Couëtte
3. 2023-08-01 17:42 Antoine Couëtte
4. 2023-08-01 17:48 Frank Reed
5. 2023-08-03 19:01 Antoine Couëtte
6. 2023-08-05 14:34 Frank Reed
7. 2023-08-06 10:46 Antoine Couëtte

05 Aug 2023 – 07 Aug 2023 : Position fix by visual satellite pass. How to identify the bright Star

1. 2023-08-05 15:18 Herman Dekker
2. 2023-08-07 09:39 Lars Bergman
3. 2023-08-07 17:19 Herman Dekker

07 Aug 2023 – 07 Aug 2023 : Book: A day in the life of a Vulcan Crew

1. 2023-08-07 21:33 David Pike

11 Aug 2023 – 11 Aug 2023 : Sphere Research closing

1. 2023-08-11 21:30 Paul Hirose

15 Aug 2023 – 17 Aug 2023 : Re: Breed's Graphical Navigation

1. 2023-08-15 14:52 Alan S
2. 2023-08-16 17:45 Robin Stuart
3. 2023-08-17 02:31 Alan S

17 Aug 2023 – 18 Aug 2023 : Why one shouldn't rely only on GPS

1. 2023-08-17 20:32 Gary LaPook
2. 2023-08-18 23:09 Tom Sult

18 Aug 2023 – 21 Aug 2023 : Heavens-above

1. 2023-08-18 02:27 Homer Smith
2. 2023-08-18 02:54 Frank Reed
3. 2023-08-20 15:23 Frank Reed
4. 2023-08-21 10:35 Frank Reed

23 Aug 2023 – 25 Aug 2023 : Lunars check and index error assessment

1. 2023-08-23 22:52 David McN
2. 2023-08-24 10:08 David McN
3. 2023-08-25 06:45 Modris Fersters

12 Aug 2023 – 27 Aug 2023 : Sunset from a legal point of view

1. 2023-08-12 23:36 Paul Hirose
2. 2023-08-13 08:50 David Pike
3. 2023-08-13 17:47 Robin Stuart
4. 2023-08-13 20:03 Bill Ritchie
5. 2023-08-14 18:03 David Pike
6. 2023-08-15 20:56 Bill Ritchie
7. 2023-08-16 21:01 David Pike
8. 2023-08-20 16:23 Frank Reed
9. 2023-08-20 21:44 Matus Tejiscak
10. 2023-08-21 00:10 David C
11. 2023-08-21 17:14 Gary LaPook
12. 2023-08-21 20:06 David Pike
13. 2023-08-23 23:42 Paul Hirose
14. 2023-08-24 06:09 Gary LaPook
15. 2023-08-24 23:45 Paul Hirose
16. 2023-08-25 03:04 Brian Walton
17. 2023-08-25 19:52 David Pike
18. 2023-08-25 20:30 Bill Ritchie
19. 2023-08-27 05:48 Brian Walton

27 Aug 2023 – 30 Aug 2023 : Logbooks available on-line

1. 2023-08-27 14:37 Lars Bergman
2. 2023-08-30 16:43 Frank Reed

26 Aug 2023 – 30 Aug 2023 : Longitude Sight Calculation with Ageton Classic?

1. 2023-08-26 10:39 Herman Dekker
2. 2023-08-28 09:31 Lars Bergman
3. 2023-08-30 16:33 Frank Reed
4. 2023-08-30 17:40 Herman Dekker

07 Aug 2023 – 03 Sep 2023 : Re: Vulcan airborne sight reduction form?

1. 2023-08-07 16:06 Eric van der Veen
2. 2023-08-07 18:44 David Pike
3. 2023-08-07 19:59 Eric van der Veen
4. 2023-08-07 21:17 David Pike
5. 2023-08-08 06:49 Eric van der Veen
6. 2023-08-09 09:21 David Pike
7. 2023-08-10 15:29 Eric van der Veen
8. 2023-08-10 16:01 David Pike
9. 2023-08-11 12:13 Antoine Couëtte
10. 2023-08-12 07:08 Eric van der Veen
11. 2023-08-12 14:20 David Pike
12. 2023-08-12 15:06 David Pike
13. 2023-08-12 16:50 David Pike
14. 2023-08-16 13:38 Gary LaPook
15. 2023-08-16 21:38 David Pike
16. 2023-08-17 15:31 David Pike
17. 2023-08-17 19:15 Gary LaPook
18. 2023-08-20 23:01 David Pike
19. 2023-08-20 23:12 David Pike
20. 2023-09-03 07:16 Eric van der Veen

06 Sep 2023 – 06 Sep 2023 : Fall or Autumn...

1. 2023-09-06 22:53 Paul Saffo

13 Aug 2023 – 08 Sep 2023 : Sextant Case Foam

1. 2023-08-13 18:57 Colin B
2. 2023-08-14 13:05 Robin Stuart
3. 2023-09-07 19:00 Noell Wilson
4. 2023-09-07 19:21 Frank Reed
5. 2023-09-08 15:09 Paul Dolkas
6. 2023-09-08 16:40 Colin B

01 Sep 2023 – 10 Sep 2023 : Re: Mirror horizon

1. 2023-09-01 16:32 Alan S
2. 2023-09-01 18:01 Herman Dekker
3. 2023-09-01 21:39 Alan S
4. 2023-09-02 06:09 Herman Dekker
5. 2023-09-06 14:50 Art Leung
6. 2023-09-06 17:13 Gary LaPook
7. 2023-09-06 23:21 Paul Saffo
8. 2023-09-07 15:04 Robin Stuart
9. 2023-09-08 15:12 Paul Dolkas
10. 2023-09-09 00:36 Marty Lyons
11. 2023-09-10 18:27 Paul Saffo

31 Aug 2023 – 11 Sep 2023 : Book on calculators

1. 2023-08-31 22:10 Frank Reed
2. 2023-09-02 14:29 Howard G
3. 2023-09-02 23:58 David C
4. 2023-09-03 14:10 Howard G
5. 2023-09-04 06:52 Andrés Ruiz
6. 2023-09-05 20:10 NavList Visitor
7. 2023-09-06 07:04 Andrés Ruiz
8. 2023-09-06 21:59 Alan S
9. 2023-09-07 16:46 David Pike
10. 2023-09-07 19:28 Homer Smith
11. 2023-09-08 06:36 Andrés Ruiz
12. 2023-09-08 08:27 David McN
13. 2023-09-09 12:22 Howard G
14. 2023-09-11 14:43 Andrés Ruiz
15. 2023-09-11 14:49 Andrés Ruiz
16. 2023-09-11 20:46 Alan S

12 Sep 2023 – 12 Sep 2023 : Modern Celestial I & II in October at Mystic Seaport

1. 2023-09-12 14:45 Frank Reed

16 Sep 2023 – 19 Sep 2023 : Interesting way of numbering years, early 18th century

1. 2023-09-16 15:01 David Pike
2. 2023-09-16 22:51 Robin Stuart
3. 2023-09-17 20:50 David Pike
4. 2023-09-18 04:36 Frank Reed
5. 2023-09-19 02:33 Frank Reed
6. 2023-09-19 09:19 David Pike

03 Sep 2023 – 19 Sep 2023 : Southern sky CN photo puzzle

1. 2023-09-03 13:18 Frank Reed
2. 2023-09-04 05:56 David McN
3. 2023-09-04 15:53 Robin Stuart
4. 2023-09-05 11:01 Frank Reed
5. 2023-09-05 11:48 Frank Reed
6. 2023-09-10 19:13 Frank Reed
7. 2023-09-11 07:11 Antoine Couëtte
8. 2023-09-11 13:07 Frank Reed
9. 2023-09-19 11:18 Antoine Couëtte

15 Sep 2023 – 19 Sep 2023 : Troughton device c.1800

1. 2023-09-15 16:00 Frank Reed
2. 2023-09-15 18:57 Gary LaPook
3. 2023-09-15 20:31 Jeffrey Rock
4. 2023-09-16 02:37 David C
5. 2023-09-16 02:51 David C
6. 2023-09-16 07:51 David C
7. 2023-09-16 09:28 David Pike
8. 2023-09-16 09:44 David Pike
9. 2023-09-16 13:35 Frank Reed
10. 2023-09-16 14:29 Frank Reed
11. 2023-09-16 14:48 David Pike
12. 2023-09-19 21:38 Chuck Varney

21 Sep 2023 – 21 Sep 2023 : Planetarium for navigator training 1945

1. 2023-09-21 21:15 Paul Hirose

18 Sep 2023 – 21 Sep 2023 : Sextants in pop culture

1. 2023-09-18 14:25 Frank Reed
2. 2023-09-18 20:48 David Pike
3. 2023-09-18 21:09 David Pike
4. 2023-09-19 13:27 NavList Visitor
5. 2023-09-19 19:29 Murray Buckman
6. 2023-09-19 19:34 Murray Buckman
7. 2023-09-19 19:45 Murray Buckman
8. 2023-09-19 20:08 Murray Buckman
9. 2023-09-19 21:07 David Pike
10. 2023-09-19 21:09 David Pike
11. 2023-09-19 21:15 David Pike
12. 2023-09-20 01:08 Murray Buckman
13. 2023-09-20 10:04 David Pike
14. 2023-09-21 11:12 David Pike
15. 2023-09-21 20:41 Murray Buckman
16. 2023-09-21 22:23 David Pike

24 Sep 2023 – 24 Sep 2023 : Re: GPS Anti Spoof app: update released

1. 2023-09-24 19:15 Frank Reed

20 Sep 2023 – 26 Sep 2023 : Interpolating a traverse table

1. 2023-09-20 11:07 David McN
2. 2023-09-20 16:49 David Pike
3. 2023-09-20 20:56 David McN
4. 2023-09-21 01:58 Frank Reed
5. 2023-09-21 08:45 David McN
6. 2023-09-21 10:55 David Pike
7. 2023-09-22 12:07 David Iwancio
8. 2023-09-22 14:54 David Pike
9. 2023-09-22 15:02 Lars Bergman
10. 2023-09-22 17:51 David Pike
11. 2023-09-22 18:35 David Pike
12. 2023-09-24 12:47 David Pike
13. 2023-09-25 10:06 David McN
14. 2023-09-26 21:42 David Pike

14 Sep 2023 – 05 Oct 2023 : Index error test with Davis whole horizon mirror

1. 2023-09-14 13:13 Erik Rosen
2. 2023-09-15 03:08 Greg Rudzinski
3. 2023-10-05 14:04 Erik Rosen
4. 2023-10-05 15:03 Herman Dekker

02 Oct 2023 – 07 Oct 2023 : Venus in daylight again

1. 2023-10-02 18:51 Frank Reed
2. 2023-10-05 21:31 David McN
3. 2023-10-06 08:37 David C
4. 2023-10-07 14:18 Frank Reed

09 Oct 2023 – 09 Oct 2023 : GPS Spoofing

1. 2023-10-09 15:30 Frank Reed

10 Oct 2023 – 10 Oct 2023 : Celestial ONE: Oct 14-15 and TWO: Oct 28-29, in Mystic

1. 2023-10-10 16:33 Frank Reed

08 Oct 2023 – 10 Oct 2023 : Satellite trails? Or some other phenomena?

1. 2023-10-08 20:04 Frank Reed
2. 2023-10-08 22:22 David Pike
3. 2023-10-09 15:56 Frank Reed
4. 2023-10-09 16:38 David Pike
5. 2023-10-09 21:45 David Pike
6. 2023-10-10 19:14 Frank Reed

11 Oct 2023 – 11 Oct 2023 : Determining astronomical position using two solar altitudes

1. 2023-10-11 05:25 Saeed alipour

11 Oct 2023 – 11 Oct 2023 : DM15 (HP-15c) as NA for Sun

1. 2023-10-11 18:35 Michael Josefsson

13 Oct 2023 – 13 Oct 2023 : Re: Sphere Research closing

1. 2023-10-13 16:15 Noell Wilson

07 Oct 2023 – 13 Oct 2023 : Carmody Slide Rule

1. 2023-10-07 13:25 Paul Bedel
2. 2023-10-13 16:27 Noell Wilson

11 Oct 2023 – 13 Oct 2023 : Re: HO 211 (Ageton) sight reduction accuracy

1. 2023-10-11 14:56 Michalis Vaidanis
2. 2023-10-13 18:50 Paul Hirose

09 Oct 2023 – 14 Oct 2023 : Geoff's (low cost) - Tripod Artificial Horizon.

1. 2023-10-09 03:17 Geoff Hitchcox
2. 2023-10-09 10:31 David Pike
3. 2023-10-10 15:30 Paul Saffo
4. 2023-10-13 15:03 Noell Wilson
5. 2023-10-14 11:27 Geoff Hitchcox

14 Oct 2023 – 14 Oct 2023 : Canada abruptly ends time signal

1. 2023-10-14 12:59 Ed Popko

29 Sep 2023 – 17 Oct 2023 : Michael Gambon as John Harrison in Longitude

1. 2023-09-29 15:51 Frank Reed
2. 2023-09-29 20:59 David Pike
3. 2023-10-15 21:13 Dale Lichtblau
4. 2023-10-16 17:00 David Pike
5. 2023-10-16 21:33 Dale Lichtblau
6. 2023-10-17 11:00 Andrés Ruiz

30 Sep 2023 – 19 Oct 2023 : Sextant mirror silvering

1. 2023-09-30 15:19 Frank Reed
2. 2023-09-30 19:32 Robin Stuart
3. 2023-10-01 15:19 Art Leung
4. 2023-10-02 18:25 Frank Reed
5. 2023-10-03 14:25 Sam Lyness
6. 2023-10-13 16:07 Noell Wilson
7. 2023-10-19 19:32 Bill Morris
8. 2023-10-19 21:00 Frank Reed
9. 2023-10-19 21:09 Bill Morris

19 Oct 2023 – 24 Oct 2023 : Occultations of stars by the Moon

1. 2023-10-19 14:26 Frank Reed
2. 2023-10-19 15:19 Antoine Couëtte
3. 2023-10-19 18:48 Antoine Couëtte
4. 2023-10-20 01:48 Geoff Hitchcox
5. 2023-10-20 05:12 Antoine Couëtte
6. 2023-10-20 10:44 Geoff Hitchcox
7. 2023-10-20 15:19 Antoine Couëtte
8. 2023-10-21 00:00 Geoff Hitchcox
9. 2023-10-21 03:28 Antoine Couëtte
10. 2023-10-23 11:05 Antoine Couëtte
11. 2023-10-24 02:20 Geoff Hitchcox
12. 2023-10-24 08:10 Antoine Couëtte
13. 2023-10-24 11:04 Lars Bergman
14. 2023-10-24 17:31 Paul Hirose

25 Oct 2023 – 25 Oct 2023 : Navigational Algorithms Android apps

1. 2023-10-25 06:42 Andrés Ruiz

26 Sep 2023 – 25 Oct 2023 : Sun sights during an eclipse: "bad limb" calculation

1. 2023-09-26 22:15 Frank Reed
2. 2023-09-27 08:09 Antoine Couëtte
3. 2023-09-29 22:24 David Pike
4. 2023-09-29 23:56 Frank Reed
5. 2023-09-30 21:18 David Pike
6. 2023-09-30 21:53 David Pike
7. 2023-09-30 23:38 David Pike
8. 2023-10-01 08:43 David Pike
9. 2023-10-01 11:08 David Pike
10. 2023-10-01 13:13 David Pike
11. 2023-10-01 16:25 David Pike
12. 2023-10-02 11:51 Frank Reed
13. 2023-10-02 12:28 David Pike
14. 2023-10-02 13:26 David Pike
15. 2023-10-03 12:51 Antoine Couëtte
16. 2023-10-03 20:45 Lars Bergman
17. 2023-10-03 21:15 Paul Hirose
18. 2023-10-04 10:41 Antoine Couëtte
19. 2023-10-04 10:43 Geoff Hitchcox
20. 2023-10-04 12:39 Frank Reed
21. 2023-10-04 13:15 Frank Reed
22. 2023-10-04 13:25 Antoine Couëtte
23. 2023-10-04 18:29 Lars Bergman
24. 2023-10-05 01:26 Frank Reed
25. 2023-10-05 02:20 Geoff Hitchcox
26. 2023-10-05 03:40 Antoine Couëtte
27. 2023-10-05 09:32 Antoine Couëtte
28. 2023-10-05 21:09 David Pike
29. 2023-10-06 12:27 Lars Bergman
30. 2023-10-07 01:46 Geoff Hitchcox
31. 2023-10-07 04:29 Sean C
32. 2023-10-07 10:17 Geoff Hitchcox
33. 2023-10-07 12:50 Frank Reed
34. 2023-10-07 14:02 Frank Reed
35. 2023-10-07 17:39 Chuck Varney
36. 2023-10-07 20:44 Geoff Hitchcox
37. 2023-10-08 18:02 Chuck Varney
38. 2023-10-10 13:10 Lars Bergman
39. 2023-10-10 17:58 Antoine Couëtte
40. 2023-10-10 19:28 Frank Reed
41. 2023-10-10 20:00 David Pike
42. 2023-10-10 20:02 Antoine Couëtte
43. 2023-10-10 21:02 Lars Bergman
44. 2023-10-10 21:52 Antoine Couëtte
45. 2023-10-10 21:53 David Pike
46. 2023-10-10 22:13 Antoine Couëtte
47. 2023-10-10 23:41 Paul Hirose
48. 2023-10-11 00:13 Geoff Hitchcox
49. 2023-10-11 05:33 Antoine Couëtte
50. 2023-10-11 05:40 Antoine Couëtte
51. 2023-10-11 09:37 Geoff Hitchcox
52. 2023-10-11 10:31 Lars Bergman
53. 2023-10-11 23:27 Chuck Varney
54. 2023-10-12 04:05 Geoff Hitchcox
55. 2023-10-12 04:24 Frank Reed
56. 2023-10-12 16:34 Antoine Couëtte
57. 2023-10-12 17:14 Chuck Varney
58. 2023-10-12 21:03 Paul Hirose
59. 2023-10-13 07:36 Antoine Couëtte
60. 2023-10-14 10:48 Geoff Hitchcox
61. 2023-10-14 18:49 Antoine Couëtte
62. 2023-10-14 19:17 Chuck Varney
63. 2023-10-15 13:07 Antoine Couëtte
64. 2023-10-15 13:23 Geoff Hitchcox
65. 2023-10-15 20:44 Paul Hirose
66. 2023-10-16 16:35 David Pike
67. 2023-10-16 22:51 Dale Lichtblau
68. 2023-10-17 13:10 Antoine Couëtte
69. 2023-10-17 16:55 David Pike
70. 2023-10-17 18:52 Paul Hirose
71. 2023-10-17 19:43 David Pike
72. 2023-10-17 19:54 Antoine Couëtte
73. 2023-10-17 20:33 Lars Bergman
74. 2023-10-17 21:59 Adrian F
75. 2023-10-17 22:10 David Pike
76. 2023-10-17 23:43 Frank Reed
77. 2023-10-18 01:57 Dale Lichtblau
78. 2023-10-18 06:45 Antoine Couëtte
79. 2023-10-18 09:51 David Pike
80. 2023-10-18 20:24 Lars Bergman
81. 2023-10-18 23:04 Geoff Hitchcox
82. 2023-10-19 04:11 Chuck Varney
83. 2023-10-19 08:41 Antoine Couëtte
84. 2023-10-19 09:07 Antoine Couëtte
85. 2023-10-19 09:21 Antoine Couëtte
86. 2023-10-19 11:28 Antoine Couëtte
87. 2023-10-24 23:57 Frank Reed
88. 2023-10-25 23:41 Dale Lichtblau

27 Oct 2023 – 27 Oct 2023 : Fwd: Winter Maritime Treasures 2023

1. 2023-10-27 17:40 Paul Hirose

28 Oct 2023 – 28 Oct 2023 : Lunch at Machu Picchu... I'm buying

1. 2023-10-28 01:29 Frank Reed

17 Oct 2023 – 28 Oct 2023 : How do you heave-to a 64-gun ship of the line?

1. 2023-10-17 10:22 David Pike
2. 2023-10-17 19:25 Don Seltzer
3. 2023-10-17 19:36 Lars Bergman
4. 2023-10-19 19:35 David Pike
5. 2023-10-19 23:42 Don Seltzer
6. 2023-10-20 14:12 David Pike
7. 2023-10-25 10:54 Noell Wilson
8. 2023-10-25 15:24 Don Seltzer
9. 2023-10-28 08:42 David Pike

28 Oct 2023 – 28 Oct 2023 : The Inscription on Bligh’s Tomb

1. 2023-10-28 11:21 David Pike

13 Oct 2023 – 28 Oct 2023 : Refracted semidiameter

1. 2023-10-13 20:03 Paul Hirose
2. 2023-10-14 01:04 Frank Reed
3. 2023-10-27 16:47 Antoine Couëtte
4. 2023-10-28 05:54 Antoine Couëtte
5. 2023-10-28 16:10 Antoine Couëtte
6. 2023-10-28 16:34 Bill Ritchie

28 Oct 2023 – 28 Oct 2023 : The Inscription on Bligh's Tomb

1. 2023-10-28 20:40 Dale Lichtblau

28 Oct 2023 – 28 Oct 2023 : Navigation Spreadsheets in 2024

1. 2023-10-28 23:28 Peter Hakel

25 Oct 2023 – 03 Nov 2023 : Re: Astrolabe Auction

1. 2023-10-25 22:52 Dale Lichtblau
2. 2023-10-26 22:05 Bill Ritchie
3. 2023-10-27 12:55 Bill Lionheart
4. 2023-10-28 15:50 Dale Lichtblau
5. 2023-10-30 21:13 Frank Reed
6. 2023-10-31 19:43 Dale Lichtblau
7. 2023-11-01 07:14 Bob Crawley
8. 2023-11-01 18:27 Ed Popko
9. 2023-11-02 08:19 Wolfgang Köberer
10. 2023-11-02 18:13 Chuck Varney
11. 2023-11-03 01:15 Sean C
12. 2023-11-03 17:19 Frank Reed
13. 2023-11-03 17:30 Frank Reed

05 Nov 2023 – 06 Nov 2023 : What is special about 1938?

1. 2023-11-05 22:15 David C
2. 2023-11-05 23:04 David Pike
3. 2023-11-06 00:31 Lu Abel
4. 2023-11-06 03:24 David C

05 Nov 2023 – 06 Nov 2023 : Stellarium Apparent RA & Dec

1. 2023-11-05 21:21 Peter Blaskett
2. 2023-11-05 22:40 Frank Reed
3. 2023-11-06 02:03 Peter Blaskett
4. 2023-11-06 03:04 Frank Reed
5. 2023-11-06 03:58 Peter Blaskett

04 Nov 2023 – 06 Nov 2023 : Repent of old Nav books

1. 2023-11-04 20:06 Terry Kirkpatrick
2. 2023-11-05 10:36 David Pike
3. 2023-11-05 16:56 Bela Kovacs
4. 2023-11-05 19:00 David C
5. 2023-11-06 17:44 Alan S

07 Nov 2023 – 07 Nov 2023 : A crazy starfinder contraption

1. 2023-11-07 04:18 Frank Reed
2. 2023-11-07 16:27 Paul Saffo

07 Nov 2023 – 07 Nov 2023 : Tamaya changes... now without bronze arc?

1. 2023-11-07 17:45 Al Stewart

08 Nov 2023 – 11 Nov 2023 : In memoriam: Ed Popko

1. 2023-11-08 16:38 Frank Reed
2. 2023-11-08 16:56 Jean-Philippe Planas
3. 2023-11-10 00:33 Alan S
4. 2023-11-11 02:44 Sean C
5. 2023-11-11 14:24 Robin Stuart

11 Nov 2023 – 11 Nov 2023 : USNO app weird data error

1. 2023-11-11 19:33 Frank Reed

13 Nov 2023 – 13 Nov 2023 : Re: Who can repair AN5854 bubble sextant?

1. 2023-11-13 15:44 Kurt Bromschwig

03 Nov 2023 – 16 Nov 2023 : Open a Mk IX bubble sextant

1. 2023-11-03 23:12 Michael Josefsson
2. 2023-11-04 10:05 Jean-Philippe Planas
3. 2023-11-05 20:25 Michael Josefsson
4. 2023-11-06 08:19 Jean-Philippe Planas
5. 2023-11-07 18:14 Michael Josefsson
6. 2023-11-07 20:25 David Pike
7. 2023-11-07 20:29 Jean-Philippe Planas
8. 2023-11-07 22:44 David Pike
9. 2023-11-08 13:28 Jean-Philippe Planas
10. 2023-11-08 19:33 David Pike
11. 2023-11-09 07:58 Michael Josefsson
12. 2023-11-09 16:17 Jean-Philippe Planas
13. 2023-11-10 14:08 Noell Wilson
14. 2023-11-13 19:16 Michael Josefsson
15. 2023-11-13 21:07 David Pike
16. 2023-11-14 08:50 Michael Josefsson
17. 2023-11-15 12:04 Michael Josefsson
18. 2023-11-15 15:49 David Pike
19. 2023-11-15 17:05 Jean-Philippe Planas
20. 2023-11-16 13:09 Michael Josefsson
21. 2023-11-16 14:54 Jean-Philippe Planas

17 Nov 2023 – 17 Nov 2023 : Armistice 1918-11-11 11:00

1. 2023-11-17 18:58 Paul Hirose

12 Nov 2023 – 18 Nov 2023 : Oaklet Japanese sextant brand

1. 2023-11-12 16:30 Colin B
2. 2023-11-12 16:39 Frank Reed
3. 2023-11-12 17:09 Colin B
4. 2023-11-12 18:44 Frank Reed
5. 2023-11-13 15:04 Jim Hickey
6. 2023-11-13 16:02 Al Stewart
7. 2023-11-18 00:32 Colin B

21 Nov 2023 – 21 Nov 2023 : Danger of relying solely on GPS

1. 2023-11-21 18:07 Gary LaPook

20 Nov 2023 – 21 Nov 2023 : Sextant dealers?

1. 2023-11-20 22:13 Carl Herzog
2. 2023-11-21 16:08 Robert Kovach
3. 2023-11-21 18:31 Paul Hirose

21 Nov 2023 – 21 Nov 2023 : Navlist emails from anonymous senders

1. 2023-11-21 18:51 Paul Hirose

22 Nov 2023 – 22 Nov 2023 : Litton LN-20 Celestial Gyrocompass

1. 2023-11-22 02:26 J S Rushing

07 Nov 2023 – 22 Nov 2023 : Who can repair AN5154-1 sextant?

1. 2023-11-07 04:16 Kurt Bromschwig
2. 2023-11-22 05:40 Kurt Bromschwig

20 Nov 2023 – 24 Nov 2023 : Admiralty Manual of Navigation

1. 2023-11-20 01:52 David C
2. 2023-11-24 19:25 Paul Hirose

24 Nov 2023 – 24 Nov 2023 : Mk IX First Results

1. 2023-11-24 07:22 Michael Josefsson
2. 2023-11-24 15:03 Jean-Philippe Planas
3. 2023-11-24 23:51 David Pike

08 Nov 2023 – 25 Nov 2023 : Position Angles (PA) angular rates

1. 2023-11-08 09:11 Antoine Couëtte
2. 2023-11-12 20:24 Antoine Couëtte
3. 2023-11-19 02:04 Antoine Couëtte
4. 2023-11-21 18:40 Antoine Couëtte
5. 2023-11-25 16:32 Antoine Couëtte

17 Nov 2023 – 27 Nov 2023 : Kollsman MA-2 bubble sextant, bubble repair

1. 2023-11-17 09:13 Harold Boersma
2. 2023-11-18 00:01 NavList Visitor
3. 2023-11-18 11:20 Harold Boersma
4. 2023-11-18 18:07 Art Leung
5. 2023-11-18 23:16 Art Leung
6. 2023-11-19 11:30 Harold Boersma
7. 2023-11-25 16:04 Harold Boersma
8. 2023-11-27 12:58 Art Leung

19 Nov 2023 – 27 Nov 2023 : S M Burton Master Mariner

1. 2023-11-19 03:28 David C
2. 2023-11-27 18:06 Frank Reed

27 Nov 2023 – 27 Nov 2023 : Another starmap project

1. 2023-11-27 18:31 Frank Reed

31 Oct 2023 – 27 Nov 2023 : Alnair identification

1. 2023-10-31 17:57 Frank Reed
2. 2023-11-01 18:14 Antoine Couëtte
3. 2023-11-03 18:02 Frank Reed
4. 2023-11-04 02:23 Antoine Couëtte
5. 2023-11-04 06:35 Antoine Couëtte
6. 2023-11-06 14:30 Antoine Couëtte
7. 2023-11-06 15:24 Frank Reed
8. 2023-11-07 04:06 Peter Hakel
9. 2023-11-11 01:43 Peter Blaskett
10. 2023-11-13 07:15 Peter Blaskett
11. 2023-11-18 19:43 Antoine Couëtte
12. 2023-11-19 17:50 Antoine Couëtte
13. 2023-11-20 06:51 Peter Blaskett
14. 2023-11-20 13:19 Peter Blaskett
15. 2023-11-20 21:15 Antoine Couëtte
16. 2023-11-26 00:07 Frank Reed
17. 2023-11-26 15:07 David Pike
18. 2023-11-26 17:17 Antoine Couëtte
19. 2023-11-26 19:58 David Pike
20. 2023-11-27 05:59 Antoine Couëtte
21. 2023-11-27 18:36 Frank Reed
22. 2023-11-27 19:29 Antoine Couëtte
23. 2023-11-27 20:53 David Pike

20 Nov 2023 – 27 Nov 2023 : Digital Dead Reckoning Calcs

1. 2023-11-20 20:10 Roger Errington Jr.
2. 2023-11-21 04:54 David C
3. 2023-11-21 06:38 David C
4. 2023-11-21 06:48 David C
5. 2023-11-21 10:31 Andrés Ruiz
6. 2023-11-21 11:57 David Pike
7. 2023-11-21 18:02 David Pike
8. 2023-11-21 21:36 David C
9. 2023-11-22 10:15 David McN
10. 2023-11-22 15:55 David Pike
11. 2023-11-23 11:52 David Iwancio
12. 2023-11-23 14:27 David Pike
13. 2023-11-24 04:52 David Iwancio
14. 2023-11-27 17:36 Frank Reed
15. 2023-11-27 21:51 Roger Errington Jr.

14 Nov 2023 – 27 Nov 2023 : GPS Anti-Spoof Accuracy

1. 2023-11-14 23:34 Bob Goethe
2. 2023-11-15 15:38 David Pike
3. 2023-11-26 18:48 Frank Reed
4. 2023-11-27 23:09 Bob Goethe

02 Nov 2023 – 29 Nov 2023 : Revisiting automatic sextants

1. 2023-11-02 14:30 Bill Lionheart
2. 2023-11-06 03:15 Frank Reed
3. 2023-11-06 03:46 Bill Lionheart
4. 2023-11-29 23:59 Paul Dolkas

29 Nov 2023 – 30 Nov 2023 : Altitude & azimuth from Bygrave formulas

1. 2023-11-29 17:17 Paul Hirose
2. 2023-11-30 02:40 Gary LaPook

28 Nov 2023 – 30 Nov 2023 : Cloudy skies?

1. 2023-11-28 20:17 David McN
2. 2023-11-28 22:40 Murray Buckman
3. 2023-11-29 00:30 Roger Errington Jr.
4. 2023-11-30 09:34 David McN

30 Nov 2023 – 30 Nov 2023 : Moon at Zenith

1. 2023-11-30 15:47 Greg Rudzinski

02 Dec 2023 – 02 Dec 2023 : Backsight of the sun.

1. 2023-12-02 03:28 Frank Maxwell

29 Nov 2023 – 02 Dec 2023 : Weird moonrise direction

1. 2023-11-29 17:07 Frank Reed
2. 2023-11-30 14:57 Frank Reed
3. 2023-11-30 15:19 Bill Ritchie
4. 2023-11-30 16:09 Frank Reed
5. 2023-12-01 10:13 Geoff Hitchcox
6. 2023-12-01 19:50 David C
7. 2023-12-01 23:34 Bill Ritchie
8. 2023-12-02 16:48 Lars Bergman

04 Dec 2023 – 04 Dec 2023 : Astra IIIb sextant micrometer

1. 2023-12-04 04:42 S L Cooper
2. 2023-12-04 17:39 S L Cooper
3. 2023-12-04 18:14 Frank Reed

02 Dec 2023 – 05 Dec 2023 : Re: Backsight of the Sun

1. 2023-12-02 16:04 Frank Reed
2. 2023-12-03 03:16 Frank Maxwell
3. 2023-12-04 08:51 Peter B
4. 2023-12-04 16:13 Peter B
5. 2023-12-04 18:05 Frank Reed
6. 2023-12-05 02:16 Sean C
7. 2023-12-05 03:50 Frank Reed
8. 2023-12-05 03:55 Frank Maxwell

07 Dec 2023 – 07 Dec 2023 : Latitude by Venus, Longitude by Sun

1. 2023-12-07 23:46 Frank Reed

09 Dec 2023 – 09 Dec 2023 : Stellarium sextant plugin

1. 2023-12-09 03:27 Alexander Wolf
2. 2023-12-09 14:38 Dave Walden

08 Dec 2023 – 10 Dec 2023 : ADMIN: NavList message volume

1. 2023-12-08 16:48 Frank Reed
2. 2023-12-08 18:54 Murray Buckman
3. 2023-12-10 05:27 Paul Saffo
4. 2023-12-10 18:47 Frank Reed

11 Dec 2023 – 14 Dec 2023 : Historical compass variation or magnetic declination

1. 2023-12-11 18:11 Frank Reed
2. 2023-12-12 00:33 Frank Reed
3. 2023-12-12 19:15 Susan Johnson
4. 2023-12-13 08:14 Huub Robroek
5. 2023-12-14 03:59 Don Seltzer

13 Dec 2023 – 14 Dec 2023 : Re: Golden Globe Race Navigation

1. 2023-12-13 22:15 David McN
2. 2023-12-14 11:29 Bill Lionheart

14 Dec 2023 – 14 Dec 2023 : A 16th century globe

1. 2023-12-14 00:59 Lu Abel
2. 2023-12-14 18:11 Murray Buckman

05 Nov 2023 – 14 Dec 2023 : Halley's Comet reaching aphelion...

1. 2023-11-05 23:34 Frank Reed
2. 2023-11-06 14:29 Antoine Couëtte
3. 2023-11-27 18:48 Frank Reed
4. 2023-11-29 23:49 Robert H. van Gent
5. 2023-11-29 23:52 Robert H. van Gent
6. 2023-12-14 18:28 Frank Reed

15 Dec 2023 – 15 Dec 2023 : Ebbco Special still going strong

1. 2023-12-15 00:59 Murray Buckman

13 Dec 2023 – 15 Dec 2023 : Three extraordinary sailors, their sextants, and a question

1. 2023-12-13 16:40 Rafael C. Caruso
2. 2023-12-13 19:33 Art Leung
3. 2023-12-13 21:55 Drago Simac
4. 2023-12-14 01:14 Chuck Varney
5. 2023-12-14 01:21 Frank Reed
6. 2023-12-14 12:39 Rafael C. Caruso
7. 2023-12-14 14:19 Art Leung
8. 2023-12-14 16:54 Murray Buckman
9. 2023-12-15 03:50 Al Stewart

15 Dec 2023 – 15 Dec 2023 : Re: Buy or build a modern Bygrave slide rule

1. 2023-12-15 04:00 Darcy Paul

15 Dec 2023 – 15 Dec 2023 : AI for historical navigation research and other purposes

1. 2023-12-15 17:08 Wolfgang Köberer

17 Nov 2023 – 15 Dec 2023 : Compass History

1. 2023-11-17 21:19 Bob Goethe
2. 2023-11-17 22:37 Lars Bergman
3. 2023-11-19 05:55 NavList Visitor
4. 2023-11-20 03:54 Don Seltzer
5. 2023-11-21 15:48 Bob Peterson
6. 2023-11-21 21:33 Lars Bergman
7. 2023-11-22 02:00 Sean C
8. 2023-11-22 16:54 David Pike
9. 2023-11-26 19:04 Frank Reed
10. 2023-11-26 19:55 Frank Reed
11. 2023-11-27 07:36 David C
12. 2023-11-29 21:28 Bill Ritchie
13. 2023-11-30 11:20 Lars Bergman
14. 2023-12-07 04:50 Dale Lichtblau
15. 2023-12-15 18:32 Wolfgang Köberer

16 Dec 2023 – 16 Dec 2023 : More Skip-diving

1. 2023-12-16 10:53 David Pike
2. 2023-12-16 18:41 Paul Saffo

14 Dec 2023 – 16 Dec 2023 : Celestial Navigation Certification

1. 2023-12-14 01:25 Martin Caminos
2. 2023-12-16 18:44 Paul Saffo

16 Dec 2023 – 16 Dec 2023 : Nocturnals and Astrolabes book: Reminder Requested

1. 2023-12-16 17:20 David Pike
2. 2023-12-16 17:38 Christopher Willmes
3. 2023-12-16 19:09 David Pike
4. 2023-12-16 20:55 Christopher Willmes

16 Dec 2023 – 16 Dec 2023 : Position Finding Using the Azimuth of Celestial Bodies

1. 2023-12-16 22:43 Doug MacPherson

19 Dec 2023 – 19 Dec 2023 : Transatlantic longitude in the 19th century

1. 2023-12-19 23:41 Paul Hirose

03 Dec 2023 – 20 Dec 2023 : Non moving Observer position from H culm and UT culm

1. 2023-12-03 07:13 Antoine Couëtte
2. 2023-12-03 17:53 Joseph Rheubeck
3. 2023-12-03 22:41 Bill Ritchie
4. 2023-12-19 17:32 Antoine Couëtte
5. 2023-12-19 19:15 Antoine Couëtte
6. 2023-12-19 19:53 Antoine Couëtte
7. 2023-12-20 10:56 Andrés Ruiz
8. 2023-12-20 12:12 Joseph Rheubeck

07 Dec 2023 – 21 Dec 2023 : Re: Sextants in pop culture

1. 2023-12-07 18:31 Frank Reed
2. 2023-12-08 00:52 Frank Reed
3. 2023-12-08 01:36 Jeffrey Rock
4. 2023-12-08 04:35 Alan S
5. 2023-12-08 19:50 Art Leung
6. 2023-12-08 21:27 Geoff Hitchcox
7. 2023-12-08 22:19 Peter Hakel
8. 2023-12-09 03:32 Chris Steuer
9. 2023-12-10 16:34 Frank Reed
10. 2023-12-10 18:08 Frank Reed
11. 2023-12-10 18:20 Jeffrey Rock
12. 2023-12-11 14:45 Art Leung
13. 2023-12-18 21:30 David McN
14. 2023-12-19 14:37 Frank Reed
15. 2023-12-21 18:32 Dale Lichtblau

08 Dec 2023 – 22 Dec 2023 : FAA Flight Navigator certification

1. 2023-12-08 17:22 Frank Reed
2. 2023-12-08 18:59 Huub Robroek
3. 2023-12-08 19:58 R William McAllister
4. 2023-12-08 20:32 Gary LaPook
5. 2023-12-09 01:42 R William McAllister
6. 2023-12-09 04:01 Chris Steuer
7. 2023-12-09 16:40 Jeffrey Rock
8. 2023-12-22 01:12 Gary LaPook

22 Dec 2023 – 22 Dec 2023 : Solstice subSun

1. 2023-12-22 07:10 Frank Reed
2. 2023-12-22 08:43 David McN

23 Dec 2023 – 23 Dec 2023 : Oceania's wayfinding skills

1. 2023-12-23 20:08 Frank Reed

23 Dec 2023 – 23 Dec 2023 : Moon Culmination (Meridian Passage) Exercise

1. 2023-12-23 22:08 Martin Caminos

12 Dec 2023 – 24 Dec 2023 : Longitude from moon culmination

1. 2023-12-12 17:09 Douglas Stephen
2. 2023-12-14 14:11 Lars Bergman
3. 2023-12-14 16:24 Douglas Stephen
4. 2023-12-14 18:48 Robin Stuart
5. 2023-12-14 22:24 Matus Tejiscak
6. 2023-12-15 02:11 Douglas Stephen
7. 2023-12-16 14:29 Lars Bergman
8. 2023-12-16 23:34 Douglas Stephen
9. 2023-12-17 12:11 Lars Bergman
10. 2023-12-19 14:19 Frank Reed
11. 2023-12-19 16:27 Lars Bergman
12. 2023-12-20 23:59 Douglas Stephen
13. 2023-12-24 03:28 Sean C

15 Dec 2023 – 24 Dec 2023 : Re: Borrowed Bygrave

1. 2023-12-15 03:52 Darcy Paul
2. 2023-12-16 19:00 Gary LaPook
3. 2023-12-16 22:17 Bill Ritchie
4. 2023-12-19 15:38 Art Leung
5. 2023-12-19 19:39 Gary LaPook
6. 2023-12-19 19:40 Gary LaPook
7. 2023-12-20 04:34 Alan S
8. 2023-12-20 21:02 Tibor Miseta
9. 2023-12-21 16:02 Frank Reed
10. 2023-12-22 00:57 Gary LaPook
11. 2023-12-22 01:18 Gary LaPook
12. 2023-12-24 10:22 Gary LaPook

27 Dec 2023 – 27 Dec 2023 : Martin Mariner PBM-5 Query

1. 2023-12-27 11:58 Kevin M
2. 2023-12-27 22:49 Chuck Varney

27 Dec 2023 – 28 Dec 2023 : Re: Finding great circle apex?

1. 2023-12-27 19:44 David McN
2. 2023-12-28 04:32 Sean C
3. 2023-12-28 19:43 Frank Reed

25 Dec 2023 – 29 Dec 2023 : Hughes & Son Royal Navy sextant

1. 2023-12-25 04:35 Peter Blaskett
2. 2023-12-25 23:36 Michael Bradley
3. 2023-12-26 01:24 Peter Blaskett
4. 2023-12-29 00:57 Noell Wilson
5. 2023-12-29 01:33 NavList Visitor

25 Dec 2023 – 29 Dec 2023 : Bad Santa navigation

1. 2023-12-25 20:44 Frank Reed
2. 2023-12-25 22:31 Jeffrey Rock
3. 2023-12-26 21:28 Bob Goethe
4. 2023-12-29 01:52 Alan S
5. 2023-12-29 19:22 Bob Goethe

10 Dec 2023 – 30 Dec 2023 : PC hard drive platters as artificial horizon

1. 2023-12-10 23:17 Ed Hlywa
2. 2023-12-19 16:30 Jim Wyse
3. 2023-12-29 00:38 Noell Wilson
4. 2023-12-30 16:15 Jim Wyse

31 Dec 2023 – 31 Dec 2023 : Remember leap seconds?

1. 2023-12-31 23:19 Frank Reed

29 Dec 2023 – 01 Jan 2024 : Re: Navigation slide rule

1. 2023-12-29 21:50 Drago Simac
2. 2023-12-29 21:54 Paul Dolkas
3. 2023-12-31 22:58 Bob Goethe
4. 2023-12-31 23:50 Drago Simac
5. 2024-01-01 20:42 Alan S

20 Dec 2023 – 31 Jan 2024 : Moving Navigator LAN: Culmination to Meridian Passage fully solved

1. 2023-12-20 05:26 Antoine Couëtte
2. 2023-12-22 08:06 Andrés Ruiz
3. 2023-12-22 18:07 Andrés Ruiz
4. 2024-01-02 15:19 Antoine Couëtte
5. 2024-01-02 19:09 Antoine Couëtte
6. 2024-01-05 14:56 Andrés Ruiz
7. 2024-01-09 15:05 Andrés Ruiz
8. 2024-01-09 19:58 Antoine Couëtte
9. 2024-01-09 21:02 David C
10. 2024-01-10 10:35 Andrés Ruiz
11. 2024-01-26 03:10 Bill Ritchie
12. 2024-01-29 23:20 Michael Bradley
13. 2024-01-31 02:33 Antoine Couëtte