NavList threads from 2017

[Back to overview of years]

01 Jan 2017 – 01 Jan 2017 : Leap second video

1. 2017-01-01 00:04 Jackson McDonald
2. 2017-01-01 02:04 Frank Reed

30 Dec 2016 – 02 Jan 2017 : Hamilton 992B as Marine Chronometer

1. 2016-12-30 19:01 Greg Rudzinski
2. 2016-12-31 16:46 Francis Upchurch
3. 2016-12-31 19:28 Francis Upchurch
4. 2017-01-02 02:05 Robert VanderPol II

31 Dec 2016 – 02 Jan 2017 : Toward a reedition of "Histoire generale de la navigation" by F. Marguet

1. 2016-12-31 16:35 Annaig Labornez
2. 2016-12-31 21:28 Jackson McDonald
3. 2017-01-01 20:35 Paul Bedel
4. 2017-01-02 02:20 Frank Reed

17 Dec 2016 – 02 Jan 2017 : The Sun does not stop for anyone

1. 2016-12-17 09:20 David C
2. 2016-12-17 15:02 Frank Reed
3. 2016-12-17 16:33 John D. Howard
4. 2016-12-17 18:27 Greg Rudzinski
5. 2016-12-17 20:45 David C
6. 2016-12-17 21:34 David C
7. 2016-12-17 22:14 John D. Howard
8. 2016-12-17 22:33 Peter Hakel
9. 2016-12-24 01:09 David C
10. 2016-12-24 02:56 John D. Howard
11. 2016-12-24 04:38 David C
12. 2016-12-24 17:08 John D. Howard
13. 2016-12-24 18:17 Frank Reed
14. 2016-12-24 21:05 David Pike
15. 2016-12-24 22:17 Greg Rudzinski
16. 2016-12-25 09:46 Gary LaPook
17. 2016-12-26 07:15 David C
18. 2016-12-26 10:58 David Pike
19. 2016-12-26 16:56 Frank Reed
20. 2016-12-26 18:59 Gary LaPook
21. 2016-12-26 19:20 Gary LaPook
22. 2016-12-26 19:51 Gary LaPook
23. 2016-12-26 20:12 Gary LaPook
24. 2016-12-26 20:31 Frank Reed
25. 2016-12-26 20:56 David Pike
26. 2016-12-26 22:11 Greg Rudzinski
27. 2016-12-27 00:38 Frank Reed
28. 2016-12-27 01:27 David C
29. 2016-12-27 06:14 Gary LaPook
30. 2016-12-27 08:14 Gary LaPook
31. 2016-12-27 10:58 Gary LaPook
32. 2016-12-27 11:20 Gary LaPook
33. 2016-12-27 14:53 John D. Howard
34. 2016-12-27 16:21 Greg Rudzinski
35. 2016-12-27 18:27 David Pike
36. 2016-12-27 20:34 David Pike
37. 2016-12-28 09:56 Gary LaPook
38. 2016-12-28 10:35 Gary LaPook
39. 2016-12-28 16:56 John D. Howard
40. 2016-12-28 19:09 John D. Howard
41. 2016-12-29 07:40 Gary LaPook
42. 2016-12-29 08:19 Gary LaPook
43. 2016-12-29 10:20 David Pike
44. 2016-12-29 16:30 John D. Howard
45. 2016-12-29 19:50 Frank Reed
46. 2016-12-29 20:06 David C
47. 2016-12-29 20:16 Gary LaPook
48. 2016-12-29 23:03 David Pike
49. 2016-12-30 01:18 John D. Howard
50. 2016-12-30 08:14 Gary LaPook
51. 2016-12-30 15:17 John D. Howard
52. 2016-12-30 17:06 Gary LaPook
53. 2016-12-30 17:15 Gary LaPook
54. 2016-12-30 18:10 Bob Goethe
55. 2016-12-30 18:48 Frank Reed
56. 2016-12-30 19:05 Bob Goethe
57. 2016-12-30 19:25 John D. Howard
58. 2016-12-30 19:37 John D. Howard
59. 2016-12-30 19:54 John D. Howard
60. 2016-12-30 19:59 Gary LaPook
61. 2016-12-30 20:10 Gary LaPook
62. 2016-12-30 20:14 Robin Stuart
63. 2016-12-30 20:38 Frank Reed
64. 2016-12-30 20:50 Frank Reed
65. 2016-12-30 21:08 Stan K
66. 2016-12-30 21:27 David Pike
67. 2016-12-31 05:15 Gary LaPook
68. 2016-12-31 05:19 Gary LaPook
69. 2016-12-31 05:29 Gary LaPook
70. 2016-12-31 06:24 Gary LaPook
71. 2016-12-31 07:01 Gary LaPook
72. 2016-12-31 10:06 Sean C
73. 2016-12-31 15:09 Robin Stuart
74. 2016-12-31 15:32 Frank Reed
75. 2016-12-31 15:47 Robin Stuart
76. 2016-12-31 17:08 Robin Stuart
77. 2017-01-02 11:35 David Pike

02 Jan 2017 – 02 Jan 2017 : In the Heart of the Sea

1. 2017-01-02 15:27 Don Seltzer

02 Jan 2017 – 02 Jan 2017 : Time Terminology

1. 2017-01-02 06:10 David C
2. 2017-01-02 13:53 Sean C
3. 2017-01-02 17:16 Bill Noyce
4. 2017-01-02 18:15 John D. Howard

02 Jan 2017 – 02 Jan 2017 : Leap Second Poses a Challenge

1. 2017-01-02 18:43 Bob Goethe

31 Dec 2016 – 02 Jan 2017 : Showing a Mercator Projection is not a perspective projection

1. 2016-12-31 18:14 David Pike
2. 2016-12-31 19:39 Robin Stuart
3. 2016-12-31 20:43 Robin Stuart
4. 2017-01-01 03:53 Frank Reed
5. 2017-01-01 03:53 Frank Reed
6. 2017-01-01 11:41 David Pike
7. 2017-01-01 18:51 David Pike
8. 2017-01-01 19:46 David Pike
9. 2017-01-01 19:47 Frank Reed
10. 2017-01-01 19:54 Frank Reed
11. 2017-01-01 20:05 Robin Stuart
12. 2017-01-01 20:23 Frank Reed
13. 2017-01-02 07:30 Gary LaPook
14. 2017-01-02 21:16 Gary LaPook

13 Dec 2016 – 02 Jan 2017 : Santa Barbara 2016: Venus sight

1. 2016-12-13 01:06 Peter Hakel
2. 2016-12-13 22:08 Stan K
3. 2016-12-14 01:20 Peter Hakel
4. 2016-12-14 02:40 Stan K
5. 2016-12-14 02:48 Stan K
6. 2016-12-14 15:15 Peter Hakel
7. 2016-12-16 16:19 Bill Noyce
8. 2016-12-16 18:04 Stan K
9. 2016-12-19 17:28 Stan K
10. 2016-12-19 18:45 Brad Morris
11. 2016-12-20 00:48 Peter Hakel
12. 2016-12-20 02:06 Stan K
13. 2017-01-02 22:40 Bill Ritchie

03 Jan 2017 – 03 Jan 2017 : Re: Position from intercept & azimuth by calculation.

1. 2017-01-03 00:14 Ron Jones

03 Jan 2017 – 03 Jan 2017 : IMac and sight reduction.

1. 2017-01-03 06:33 Paul Jackson
2. 2017-01-03 10:31 Bill Lionheart
3. 2017-01-03 15:36 Stan K

02 Jan 2017 – 03 Jan 2017 : Top 7 Must-See Sky Events for 2017

1. 2017-01-02 16:58 Jackson McDonald
2. 2017-01-03 20:38 Greg Rudzinski

26 Dec 2016 – 03 Jan 2017 : Leap second on December 31

1. 2016-12-26 15:54 Frank Reed
2. 2016-12-27 09:25 Geoffrey Kolbe
3. 2016-12-29 15:57 Frank Reed
4. 2016-12-29 18:48 Bob Goethe
5. 2016-12-29 21:29 Robin Stuart
6. 2016-12-30 13:55 Geoffrey Kolbe
7. 2016-12-30 16:26 Peter Smith
8. 2016-12-31 21:23 David C
9. 2017-01-01 15:57 Bob Goethe
10. 2017-01-01 16:10 Bob Goethe
11. 2017-01-01 19:29 Robin Stuart
12. 2017-01-02 18:05 Frank Reed
13. 2017-01-02 21:21 John D. Howard
14. 2017-01-02 23:06 Frank Reed
15. 2017-01-03 00:08 Hewitt Schlereth
16. 2017-01-03 00:14 John D. Howard
17. 2017-01-03 14:07 David Pike
18. 2017-01-03 18:43 Lu Abel
19. 2017-01-03 19:16 Frank Reed
20. 2017-01-03 20:57 Peter Smith

04 Jan 2017 – 04 Jan 2017 : Baush &Lomb 5854-1; index dial adjustment setting?

1. 2017-01-04 04:28 Steve Schoner

05 Jan 2017 – 05 Jan 2017 : Astron spreadsheet, version 1.12

1. 2017-01-05 07:58 Peter Hakel

03 Jan 2017 – 05 Jan 2017 : Time Zone Designations

1. 2017-01-03 01:31 David C
2. 2017-01-03 02:02 John D. Howard
3. 2017-01-03 02:06 Lu Abel
4. 2017-01-03 02:37 Frank Reed
5. 2017-01-03 03:50 David C
6. 2017-01-03 17:28 Stan K
7. 2017-01-03 18:34 Brad Morris
8. 2017-01-03 18:51 Frank Reed
9. 2017-01-03 19:37 Ron Jones
10. 2017-01-03 20:18 Lu Abel
11. 2017-01-03 20:58 Tom Sult
12. 2017-01-03 21:46 Stan K
13. 2017-01-03 22:29 Bob Goethe
14. 2017-01-03 23:31 Brad Morris
15. 2017-01-03 23:59 Stan K
16. 2017-01-04 02:14 Lu Abel
17. 2017-01-04 02:24 John D. Howard
18. 2017-01-04 03:27 Brad Morris
19. 2017-01-04 04:57 Greg Rudzinski
20. 2017-01-04 05:48 Herbert Prinz
21. 2017-01-04 06:52 Henry Halboth
22. 2017-01-04 07:51 Gary LaPook
23. 2017-01-04 10:04 Gary LaPook
24. 2017-01-04 18:10 Doug MacPherson
25. 2017-01-04 23:13 Scott Owen
26. 2017-01-05 02:31 John Brown
27. 2017-01-05 09:10 Gary LaPook
28. 2017-01-05 09:46 Gary LaPook

06 Jan 2017 – 06 Jan 2017 : Certaine Errors in Navigation by Edward Wright, 1599

1. 2017-01-06 09:18 Gary LaPook

06 Jan 2017 – 08 Jan 2017 : Land Lunar

1. 2017-01-06 00:49 John D. Howard
2. 2017-01-06 02:07 Frank Reed
3. 2017-01-06 23:10 Paul Hirose
4. 2017-01-07 02:02 David C
5. 2017-01-07 02:57 David C
6. 2017-01-07 07:25 Geoffrey Kolbe
7. 2017-01-07 17:14 John D. Howard
8. 2017-01-07 17:48 John D. Howard
9. 2017-01-07 21:03 David C
10. 2017-01-08 00:56 Frank Reed

01 Jan 2017 – 09 Jan 2017 : What happened to the leap second?

1. 2017-01-01 00:38 David C
2. 2017-01-01 01:56 Bill B
3. 2017-01-01 03:18 David C
4. 2017-01-01 03:28 David C
5. 2017-01-01 03:48 David C
6. 2017-01-01 07:50 David C
7. 2017-01-01 15:19 Robin Stuart
8. 2017-01-01 17:58 Jackson McDonald
9. 2017-01-01 20:01 Robert Bernecky
10. 2017-01-01 20:26 Herbert Prinz
11. 2017-01-01 21:26 David C
12. 2017-01-02 16:02 Robin Stuart
13. 2017-01-02 17:35 Bill Noyce
14. 2017-01-02 23:34 David C
15. 2017-01-03 00:08 John D. Howard
16. 2017-01-09 08:28 David C

10 Jan 2017 – 10 Jan 2017 : Natural Haversine 5 Place Table PDF

1. 2017-01-10 04:29 Greg Rudzinski

10 Jan 2017 – 10 Jan 2017 : Combined Natural and Log Trig Table

1. 2017-01-10 04:50 Greg Rudzinski

10 Jan 2017 – 10 Jan 2017 : Common Logarithms PDF

1. 2017-01-10 04:55 Greg Rudzinski

28 Dec 2016 – 10 Jan 2017 : Golden Globe Race Navigation

1. 2016-12-28 22:45 Frank Reed
2. 2016-12-28 23:23 Bob Goethe
3. 2016-12-29 00:33 Manuel Cruz
4. 2016-12-29 16:29 Doug MacPherson
5. 2016-12-29 18:35 Francis Upchurch
6. 2016-12-29 18:53 Greg Rudzinski
7. 2016-12-29 19:16 Frank Reed
8. 2016-12-29 22:16 Hewitt Schlereth
9. 2016-12-30 03:30 Greg Rudzinski
10. 2016-12-30 04:09 Hewitt Schlereth
11. 2016-12-30 04:09 Henry Halboth
12. 2016-12-30 06:01 Greg Rudzinski
13. 2016-12-31 06:12 Henry Halboth
14. 2016-12-31 22:28 Greg Rudzinski
15. 2017-01-02 19:09 Frank Reed
16. 2017-01-02 20:12 Tom Sult
17. 2017-01-02 20:16 Bill Morris
18. 2017-01-02 21:06 Bill Lionheart
19. 2017-01-02 23:43 Greg Rudzinski
20. 2017-01-04 23:11 Greg Rudzinski
21. 2017-01-05 08:22 Bill Lionheart
22. 2017-01-05 12:53 Greg Rudzinski
23. 2017-01-05 18:38 Francis Upchurch
24. 2017-01-05 20:40 Greg Rudzinski
25. 2017-01-05 20:54 Brad Morris
26. 2017-01-05 21:22 Bill Lionheart
27. 2017-01-05 22:45 Brad Morris
28. 2017-01-06 05:16 Francis Upchurch
29. 2017-01-06 08:07 Francis Upchurch
30. 2017-01-06 08:07 Brad Morris
31. 2017-01-06 09:58 Gary LaPook
32. 2017-01-07 20:27 Bruce J. Pennino
33. 2017-01-08 15:37 Jorge Santos
34. 2017-01-10 17:45 Francis Upchurch

10 Jan 2017 – 10 Jan 2017 : Excel Workbooks for Sun, Moon, Stars, etc.

1. 2017-01-10 16:55 Brooks Lide
2. 2017-01-10 19:16 Stan K
3. 2017-01-10 19:56 Stan K
4. 2017-01-10 20:20 Brooks Lide
5. 2017-01-10 20:27 Brooks Lide
6. 2017-01-10 23:50 Stan K

05 Jan 2017 – 11 Jan 2017 : Lunerian Apprenticeship

1. 2017-01-05 10:03 David C
2. 2017-01-05 15:20 David Pike
3. 2017-01-05 18:57 Brad Morris
4. 2017-01-05 23:28 David Pike
5. 2017-01-06 01:49 Frank Reed
6. 2017-01-06 01:58 David C
7. 2017-01-06 02:14 David C
8. 2017-01-06 02:25 Frank Reed
9. 2017-01-06 02:30 Frank Reed
10. 2017-01-06 02:52 David C
11. 2017-01-06 03:57 David C
12. 2017-01-06 09:26 David C
13. 2017-01-06 09:59 David Pike
14. 2017-01-06 10:02 Francis Upchurch
15. 2017-01-06 11:35 Francis Upchurch
16. 2017-01-06 14:00 Brad Morris
17. 2017-01-06 20:33 David C
18. 2017-01-07 04:23 Sean C
19. 2017-01-07 04:32 Alan S
20. 2017-01-07 06:37 David C
21. 2017-01-07 14:32 Sean C
22. 2017-01-07 20:51 David C
23. 2017-01-08 00:34 Frank Reed
24. 2017-01-08 00:46 Sean C
25. 2017-01-08 00:54 David C
26. 2017-01-08 19:29 Francis Upchurch
27. 2017-01-08 19:36 Francis Upchurch
28. 2017-01-09 11:28 Francis Upchurch
29. 2017-01-09 13:48 Ed Popko
30. 2017-01-09 15:22 Stan K
31. 2017-01-09 15:56 Sean C
32. 2017-01-10 12:14 Francis Upchurch
33. 2017-01-11 03:10 Sean C
34. 2017-01-11 09:49 Francis Upchurch

11 Jan 2017 – 12 Jan 2017 : Bubbble sextants

1. 2017-01-11 22:56 Chris Caswell
2. 2017-01-12 03:09 Robert Swartz

11 Jan 2017 – 12 Jan 2017 : A C Johnson

1. 2017-01-11 17:52 Ducruy Jacques
2. 2017-01-12 02:34 Stephen N.G. Davies
3. 2017-01-12 17:35 Ducruy Jacques

13 Jan 2017 – 13 Jan 2017 : 5 Figure Common Logs Excel Workbook

1. 2017-01-13 10:03 Michael Bradley

13 Jan 2017 – 13 Jan 2017 : 5 Figure Natural Haversine Table Excel workbook

1. 2017-01-13 10:09 Michael Bradley

13 Jan 2017 – 13 Jan 2017 : WWII Training Film. Emergency Ditch at Sea.

1. 2017-01-13 23:49 Brad Morris

13 Jan 2017 – 13 Jan 2017 : Compact Ex-Meridian Table PDF

1. 2017-01-13 23:52 Greg Rudzinski

14 Jan 2017 – 14 Jan 2017 : Talk for surveyors about celestial navigation

1. 2017-01-14 03:37 Morgan C. France
2. 2017-01-14 05:51 Herbert Prinz
3. 2017-01-14 13:41 Peter Hakel
4. 2017-01-14 13:45 Greg Rudzinski

12 Jan 2017 – 16 Jan 2017 : When even a Davis Mark 3 is too much

1. 2017-01-12 00:44 Lu Abel
2. 2017-01-12 01:56 Frank Reed
3. 2017-01-14 17:50 John D. Howard
4. 2017-01-14 20:31 David Pike
5. 2017-01-14 23:00 John D. Howard
6. 2017-01-15 05:24 Francis Upchurch
7. 2017-01-15 09:30 David Pike
8. 2017-01-15 09:40 Örjan Sandström
9. 2017-01-15 11:36 Herman Dekker
10. 2017-01-15 14:54 Greg Rudzinski
11. 2017-01-15 16:26 Brad Morris
12. 2017-01-15 17:48 John D. Howard
13. 2017-01-15 18:30 Örjan Sandström
14. 2017-01-15 21:16 David Pike
15. 2017-01-15 23:44 Brad Morris
16. 2017-01-15 23:51 Brad Morris
17. 2017-01-16 00:03 Brad Morris
18. 2017-01-16 00:49 John D. Howard
19. 2017-01-16 04:20 Bill Morris
20. 2017-01-16 04:38 Brad Morris
21. 2017-01-16 05:10 John D. Howard
22. 2017-01-16 05:40 Brad Morris

12 Jan 2017 – 16 Jan 2017 : Spaceship navigation

1. 2017-01-12 05:10 Gary LaPook
2. 2017-01-12 12:09 Brooks Lide
3. 2017-01-14 03:41 Frank Reed
4. 2017-01-14 04:39 David C
5. 2017-01-14 06:38 Gary LaPook
6. 2017-01-14 15:06 Don Seltzer
7. 2017-01-14 15:52 Ed Popko
8. 2017-01-14 22:27 Brooks Lide
9. 2017-01-15 20:34 Frank Reed
10. 2017-01-15 22:07 Frank Reed
11. 2017-01-15 23:34 Brooks Lide
12. 2017-01-16 07:13 Gary LaPook

16 Jan 2017 – 16 Jan 2017 : GGR 2018 Project

1. 2017-01-16 17:05 Greg Rudzinski
2. 2017-01-16 17:50 David C

18 Jan 2017 – 18 Jan 2017 : A Pitcairn Comedy

1. 2017-01-18 03:48 Greg Rudzinski

04 Jan 2017 – 19 Jan 2017 : Finding Polaris at the bottom of a bottle

1. 2017-01-04 00:02 Ed Popko
2. 2017-01-04 09:22 Andrés Ruiz
3. 2017-01-05 03:35 Alan S
4. 2017-01-19 06:09 Sean C

19 Jan 2017 – 19 Jan 2017 : Re: Death to the Intercept Method!

1. 2017-01-19 07:16 David C
2. 2017-01-19 10:10 Bill Lionheart
3. 2017-01-19 19:37 David C
4. 2017-01-19 20:58 Peter Hakel

17 Jan 2017 – 20 Jan 2017 : Testing sextant arc error

1. 2017-01-17 14:07 David Pike
2. 2017-01-17 17:49 John D. Howard
3. 2017-01-17 18:22 Bill Morris
4. 2017-01-17 18:24 Brad Morris
5. 2017-01-17 18:50 Frank Reed
6. 2017-01-17 19:59 David Pike
7. 2017-01-18 06:26 Francis Upchurch
8. 2017-01-18 11:38 Andrés Ruiz
9. 2017-01-18 12:59 Greg Rudzinski
10. 2017-01-18 17:24 Brad Morris
11. 2017-01-18 19:46 Greg Rudzinski
12. 2017-01-19 21:39 Brad Morris
13. 2017-01-19 22:28 Paul Hirose
14. 2017-01-20 08:12 Bill Lionheart
15. 2017-01-20 10:21 Bill B
16. 2017-01-20 13:03 Greg Rudzinski
17. 2017-01-20 14:06 Bill Lionheart
18. 2017-01-20 15:43 Brad Morris
19. 2017-01-20 15:49 Brad Morris
20. 2017-01-20 16:00 Brad Morris

19 Jan 2017 – 20 Jan 2017 : Galileo program facing technical problem with its atomic clocks

1. 2017-01-19 13:41 Jackson McDonald
2. 2017-01-19 19:01 Michael Bradley
3. 2017-01-20 13:21 Richard B. Langley
4. 2017-01-20 17:46 Alan S

16 Jan 2017 – 22 Jan 2017 : Temperature range of bubble sextants?

1. 2017-01-16 16:39 Tony Oz
2. 2017-01-16 17:49 Brad Morris
3. 2017-01-16 21:07 David Pike
4. 2017-01-16 23:37 Brad Morris
5. 2017-01-16 23:38 Noell Wilson
6. 2017-01-17 10:31 David Pike
7. 2017-01-17 14:23 Tony Oz
8. 2017-01-17 15:46 Tony Oz
9. 2017-01-17 19:30 David Pike
10. 2017-01-17 19:56 David Pike
11. 2017-01-22 23:36 Paul Dolkas

23 Jan 2017 – 23 Jan 2017 : Averaging Awkward Azimuths

1. 2017-01-23 20:14 David Pike

20 Dec 2016 – 23 Jan 2017 : First Nations Navigation - west coast of British Columbia?

1. 2016-12-20 00:47 Carly Butler
2. 2016-12-20 01:59 Frank Reed
3. 2016-12-20 02:16 Greg Rudzinski
4. 2016-12-20 04:04 Tom Sult
5. 2017-01-16 20:35 Carly Butler
6. 2017-01-16 20:51 Carly Butler
7. 2017-01-16 21:44 Greg Rudzinski
8. 2017-01-23 20:36 Carly Butler

20 Jan 2017 – 24 Jan 2017 : Understanding a 1902 Sumner

1. 2017-01-20 06:08 David C
2. 2017-01-20 18:26 John D. Howard
3. 2017-01-21 03:11 David C
4. 2017-01-21 03:54 Frank Reed
5. 2017-01-21 04:06 David C
6. 2017-01-21 04:33 David C
7. 2017-01-21 04:44 Frank Reed
8. 2017-01-21 04:52 Frank Reed
9. 2017-01-21 05:13 John D. Howard
10. 2017-01-21 06:44 David C
11. 2017-01-21 07:18 David C
12. 2017-01-21 07:34 Frank Reed
13. 2017-01-21 08:21 David C
14. 2017-01-21 15:48 John D. Howard
15. 2017-01-21 18:25 Frank Reed
16. 2017-01-21 18:48 Brad Morris
17. 2017-01-21 19:25 Frank Reed
18. 2017-01-21 20:00 John D. Howard
19. 2017-01-21 21:36 David C
20. 2017-01-21 22:25 John D. Howard
21. 2017-01-21 22:42 David C
22. 2017-01-22 00:58 David C
23. 2017-01-22 04:05 Frank Reed
24. 2017-01-22 20:15 David C
25. 2017-01-23 04:43 David C
26. 2017-01-23 21:31 David C
27. 2017-01-24 04:00 David C

22 Jan 2017 – 25 Jan 2017 : I wish I had thought to bring 'that' along with me...

1. 2017-01-22 03:27 David Smith
2. 2017-01-22 04:34 Brad Morris
3. 2017-01-22 04:54 Frank Reed
4. 2017-01-22 08:13 Bill Morris
5. 2017-01-22 13:10 Wil Bailey
6. 2017-01-22 13:32 Greg Rudzinski
7. 2017-01-22 18:33 Noell Wilson
8. 2017-01-23 05:53 Sean C
9. 2017-01-23 10:23 Andrés Ruiz
10. 2017-01-23 20:05 Michael Bradley
11. 2017-01-24 07:48 David Smith
12. 2017-01-24 17:52 Greg Rudzinski
13. 2017-01-24 20:49 Greg Rudzinski
14. 2017-01-24 22:31 Bob Goethe
15. 2017-01-25 03:24 Brad Morris
16. 2017-01-25 04:00 Frank Reed
17. 2017-01-25 04:02 Bruce J. Pennino
18. 2017-01-25 04:13 Stephen N.G. Davies
19. 2017-01-25 08:07 Brad Morris

25 Jan 2017 – 25 Jan 2017 : IOS: an analog for Celestial Tools?

1. 2017-01-25 08:55 Tony Oz

21 Jan 2017 – 25 Jan 2017 : Where are you most likely to be in the triangle?

1. 2017-01-21 22:25 Bill Lionheart
2. 2017-01-21 23:17 Stan K
3. 2017-01-21 23:24 Örjan Sandström
4. 2017-01-21 23:43 Bill B
5. 2017-01-22 02:28 Gary LaPook
6. 2017-01-22 02:41 Gary LaPook
7. 2017-01-22 04:20 Frank Reed
8. 2017-01-22 09:31 Bill Lionheart
9. 2017-01-23 03:11 Stephen N.G. Davies
10. 2017-01-23 09:05 Geoffrey Kolbe
11. 2017-01-25 12:56 Bill Lionheart

25 Jan 2017 – 26 Jan 2017 : Moon phase timing

1. 2017-01-25 06:09 Gayan Wickramasuriya
2. 2017-01-26 13:51 Greg Rudzinski

25 Jan 2017 – 26 Jan 2017 : STARS below ?? declination are never visible.

1. 2017-01-25 07:45 Herman Dekker
2. 2017-01-25 10:39 Gary LaPook
3. 2017-01-25 10:42 David Pike
4. 2017-01-25 11:43 David Pike
5. 2017-01-25 12:54 David Pike
6. 2017-01-26 07:39 Geoffrey Kolbe
7. 2017-01-26 16:09 Brad Morris
8. 2017-01-26 17:55 Frank Reed
9. 2017-01-26 20:35 David Pike

25 Jan 2017 – 27 Jan 2017 : Quiz on the Graphics of a British Passport

1. 2017-01-25 07:41 David Smith
2. 2017-01-27 03:02 Robert VanderPol II
3. 2017-01-27 04:30 David Smith
4. 2017-01-27 15:57 Greg Rudzinski

25 Jan 2017 – 28 Jan 2017 : Re: Updated Transcript of Worsley's Log

1. 2017-01-25 20:59 Robin Stuart
2. 2017-01-26 04:51 Brad Morris
3. 2017-01-26 06:51 David C
4. 2017-01-26 07:08 Brad Morris
5. 2017-01-26 08:25 Brad Morris
6. 2017-01-26 16:04 Robin Stuart
7. 2017-01-26 17:01 Lars Bergman
8. 2017-01-26 18:10 Brad Morris
9. 2017-01-26 19:57 Robin Stuart
10. 2017-01-26 20:12 Frank Reed
11. 2017-01-26 20:13 Brad Morris
12. 2017-01-26 20:26 Brad Morris
13. 2017-01-26 20:27 Brad Morris
14. 2017-01-26 20:42 Lars Bergman
15. 2017-01-26 21:15 Brad Morris
16. 2017-01-26 23:21 Lars Bergman
17. 2017-01-27 00:13 Robin Stuart
18. 2017-01-27 01:45 Brad Morris
19. 2017-01-27 06:18 David C
20. 2017-01-27 07:25 Brad Morris
21. 2017-01-27 08:02 David C
22. 2017-01-27 09:28 Bob Crawley
23. 2017-01-27 15:12 Lars Bergman
24. 2017-01-27 17:58 Brad Morris
25. 2017-01-27 22:34 Lars Bergman
26. 2017-01-28 15:08 Ed Popko
27. 2017-01-28 17:39 Ed Popko

28 Jan 2017 – 28 Jan 2017 : What is the Real Time?

1. 2017-01-28 22:49 Richard B. Langley

29 Jan 2017 – 29 Jan 2017 : Worsley's CE

1. 2017-01-29 18:33 Lars Bergman
2. 2017-01-29 21:06 Brad Morris

28 Jan 2017 – 30 Jan 2017 : Navigation Weekend, October 2017

1. 2017-01-28 01:14 Frank Reed
2. 2017-01-28 04:36 Bruce J. Pennino
3. 2017-01-28 14:29 Jackson McDonald
4. 2017-01-28 19:44 Wayne Hilliard
5. 2017-01-29 01:51 Stan K
6. 2017-01-29 20:45 Frank Reed
7. 2017-01-29 21:27 Stan K
8. 2017-01-29 21:39 Brad Morris
9. 2017-01-30 16:29 Jackson McDonald

27 Jan 2017 – 30 Jan 2017 : An artificial horizon opportunity?

1. 2017-01-27 11:47 Tony Oz
2. 2017-01-27 15:29 John D. Howard
3. 2017-01-27 15:56 Bob Goethe
4. 2017-01-27 16:57 David Pike
5. 2017-01-27 18:44 Stephen Wawrzyniec
6. 2017-01-27 22:52 Alan S
7. 2017-01-28 01:20 Bill B
8. 2017-01-28 01:54 Frank Reed
9. 2017-01-28 03:17 Don Seltzer
10. 2017-01-28 04:07 Frank Reed
11. 2017-01-28 13:55 Bill Lionheart
12. 2017-01-28 18:10 Alan S
13. 2017-01-28 20:46 Ed Popko
14. 2017-01-28 22:51 Paul Dolkas
15. 2017-01-29 00:08 Alan S
16. 2017-01-29 03:53 Randall Morrow
17. 2017-01-29 09:47 David Pike
18. 2017-01-29 09:56 David Pike
19. 2017-01-29 10:03 Gary LaPook
20. 2017-01-29 10:37 David Pike
21. 2017-01-29 14:10 Greg Rudzinski
22. 2017-01-29 19:02 Brad Morris
23. 2017-01-29 21:50 Greg Rudzinski
24. 2017-01-29 22:48 David Pike
25. 2017-01-30 00:49 Don Seltzer
26. 2017-01-30 14:38 Randall Morrow
27. 2017-01-30 20:09 David Pike

30 Jan 2017 – 30 Jan 2017 : N.A. 2017

1. 2017-01-30 21:10 Herbert Prinz
2. 2017-01-30 23:59 Stan K

01 Feb 2017 – 01 Feb 2017 : Herbert P: please contact me

1. 2017-02-01 03:50 Frank Reed

01 Feb 2017 – 01 Feb 2017 : Parallel rays of light from Stars?

1. 2017-02-01 07:23 Mike Freeman

01 Feb 2017 – 01 Feb 2017 : Value of navigation tables

1. 2017-02-01 01:26 Alan S
2. 2017-02-01 05:19 Noell Wilson
3. 2017-02-01 07:47 Stan K

01 Feb 2017 – 01 Feb 2017 : Parallel rays of light from Stars

1. 2017-02-01 08:05 Mike Freeman

29 Jan 2017 – 01 Feb 2017 : Star finder tip: subtract one degree

1. 2017-01-29 22:42 Frank Reed
2. 2017-01-29 23:07 Brad Morris
3. 2017-01-30 00:27 Frank Reed
4. 2017-01-30 01:23 Brad Morris
5. 2017-01-30 05:02 Fred Hebard
6. 2017-01-30 17:18 Robin Stuart
7. 2017-01-30 17:59 Herbert Prinz
8. 2017-01-30 22:42 Stan K
9. 2017-02-01 16:24 Brad Morris
10. 2017-02-01 17:41 Brad Morris

01 Feb 2017 – 01 Feb 2017 : McMillan sextant

1. 2017-02-01 12:04 Bill Lionheart
2. 2017-02-01 18:32 Bill Morris

01 Feb 2017 – 02 Feb 2017 : Finding Venus in the daytime sky

1. 2017-02-01 19:43 Doug MacPherson
2. 2017-02-02 06:58 Mike Freeman

31 Jan 2017 – 02 Feb 2017 : Re: Which calculator to use for "arctan(tan(269))"?

1. 2017-01-31 15:58 Tony Oz
2. 2017-01-31 19:26 Robin Stuart
3. 2017-01-31 21:16 Lars Bergman
4. 2017-01-31 23:13 Robin Stuart
5. 2017-02-01 16:40 Robin Stuart
6. 2017-02-02 01:17 David C
7. 2017-02-02 02:40 Robin Stuart
8. 2017-02-02 09:46 Tony Oz
9. 2017-02-02 09:50 Tony Oz
10. 2017-02-02 10:00 Tony Oz

02 Feb 2017 – 02 Feb 2017 : Orthodromes and Loxodromes in Marine Navigation

1. 2017-02-02 13:23 Andrés Ruiz

30 Jan 2017 – 02 Feb 2017 : Precession and Nutation

1. 2017-01-30 19:20 Mike Freeman
2. 2017-01-30 23:27 Gary LaPook
3. 2017-01-31 01:19 Robert VanderPol II
4. 2017-01-31 07:19 Mike Freeman
5. 2017-01-31 09:27 Stan K
6. 2017-01-31 11:08 David Pike
7. 2017-01-31 11:36 David Pike
8. 2017-01-31 14:37 Mike Freeman
9. 2017-01-31 15:20 John D. Howard
10. 2017-01-31 17:02 Gary LaPook
11. 2017-01-31 17:14 Gary LaPook
12. 2017-01-31 17:20 Gary LaPook
13. 2017-01-31 17:39 Tony Oz
14. 2017-01-31 18:09 David Pike
15. 2017-01-31 19:20 Mike Freeman
16. 2017-02-01 01:17 Gary LaPook
17. 2017-02-01 01:21 Robert VanderPol II
18. 2017-02-01 20:58 Örjan Sandström
19. 2017-02-01 22:00 Paul Hirose
20. 2017-02-02 07:02 Mike Freeman
21. 2017-02-02 07:19 Mike Freeman
22. 2017-02-02 17:30 Gary LaPook

02 Feb 2017 – 02 Feb 2017 : Hats off to everyone who can do this!

1. 2017-02-02 07:33 Mike Freeman
2. 2017-02-02 16:21 David Pike
3. 2017-02-02 17:36 Gary LaPook

31 Jan 2017 – 02 Feb 2017 : Is there a doctor........I mean a navlist member on board?

1. 2017-01-31 04:06 David C
2. 2017-01-31 06:28 David C
3. 2017-01-31 11:59 Tony Oz
4. 2017-01-31 15:30 John D. Howard
5. 2017-01-31 16:58 Gary LaPook
6. 2017-01-31 17:24 Greg Rudzinski
7. 2017-01-31 18:43 Greg Rudzinski
8. 2017-01-31 18:51 John D. Howard
9. 2017-02-01 03:26 David C
10. 2017-02-01 04:04 David C
11. 2017-02-01 04:17 David C
12. 2017-02-01 04:53 Sean C
13. 2017-02-01 16:14 Don Seltzer
14. 2017-02-01 17:30 Brad Morris
15. 2017-02-01 18:05 Gary LaPook
16. 2017-02-02 07:52 David C
17. 2017-02-02 16:18 Greg Rudzinski
18. 2017-02-02 17:50 Gary LaPook

02 Feb 2017 – 02 Feb 2017 : Shackleton Speaks about his 1907 Expedition

1. 2017-02-02 22:57 David C

03 Feb 2017 – 03 Feb 2017 : Moon chasing Down Mars and Venus

1. 2017-02-03 00:18 Bruce J. Pennino
2. 2017-02-03 00:48 Stan K
3. 2017-02-03 02:04 David C

04 Feb 2017 – 04 Feb 2017 : Sight Reduction Form

1. 2017-02-04 03:01 Greg Rudzinski

05 Feb 2017 – 06 Feb 2017 : Symmedian for a tetrahedron

1. 2017-02-05 16:17 Bill Lionheart
2. 2017-02-05 17:06 David Pike
3. 2017-02-05 21:18 David Pike
4. 2017-02-05 21:42 Brad Morris
5. 2017-02-06 01:00 Frank Reed

04 Feb 2017 – 06 Feb 2017 : TI-36X Pro degrees minutes seconds conversion

1. 2017-02-04 14:03 Greg Rudzinski
2. 2017-02-04 16:46 Herman Dekker
3. 2017-02-04 17:57 Greg Rudzinski
4. 2017-02-05 00:36 Greg Rudzinski
5. 2017-02-05 15:03 Greg Rudzinski
6. 2017-02-05 22:15 Paul Hirose
7. 2017-02-06 01:01 David C

06 Feb 2017 – 06 Feb 2017 : Left-handed Plath Coutinho Sextant

1. 2017-02-06 00:59 Paul Saffo
2. 2017-02-06 01:25 Frank Reed
3. 2017-02-06 01:36 Paul Saffo
4. 2017-02-06 02:21 Jackson McDonald
5. 2017-02-06 03:14 Bill Morris
6. 2017-02-06 04:30 Robert VanderPol II
7. 2017-02-06 04:59 Ken Gebhart

27 Jan 2017 – 06 Feb 2017 : Point Wild location

1. 2017-01-27 17:31 Robin Stuart
2. 2017-01-27 18:31 Lars Bergman
3. 2017-01-27 19:18 Brad Morris
4. 2017-01-27 19:25 Brad Morris
5. 2017-01-27 22:16 Robin Stuart
6. 2017-01-27 22:34 Robin Stuart
7. 2017-01-27 22:51 Robin Stuart
8. 2017-01-28 15:40 Robin Stuart
9. 2017-01-28 18:10 Brad Morris
10. 2017-01-28 18:37 Robin Stuart
11. 2017-02-05 19:54 Robin Stuart
12. 2017-02-05 21:27 David C
13. 2017-02-05 21:40 Frank Reed
14. 2017-02-05 22:02 Lars Bergman
15. 2017-02-06 13:20 Robin Stuart

06 Feb 2017 – 07 Feb 2017 : Re: Plath Coutinho Sextant - left-handed and note taking

1. 2017-02-06 18:06 Paul Saffo
2. 2017-02-07 00:53 David C

07 Feb 2017 – 07 Feb 2017 : Correct way to calculate time of LAN?

1. 2017-02-07 03:33 David C
2. 2017-02-07 04:25 David Fleming
3. 2017-02-07 04:32 David C
4. 2017-02-07 05:47 Gary LaPook
5. 2017-02-07 05:49 Gary LaPook
6. 2017-02-07 06:57 Gary LaPook

08 Feb 2017 – 09 Feb 2017 : Baily's Beads and the lunar distance

1. 2017-02-08 21:45 Brad Morris
2. 2017-02-09 01:32 Frank Reed
3. 2017-02-09 02:18 Brad Morris

07 Feb 2017 – 09 Feb 2017 : Chasing Venus in South Florida

1. 2017-02-07 20:12 Greg Rudzinski
2. 2017-02-08 11:42 Paul Werner
3. 2017-02-08 13:08 Greg Rudzinski
4. 2017-02-08 19:22 Ron Jones
5. 2017-02-09 02:55 Paul Jackson
6. 2017-02-09 13:34 Greg Rudzinski

09 Feb 2017 – 09 Feb 2017 : Re: The Sun does not stop for anyone

1. 2017-02-09 16:25 Robin Stuart

02 Feb 2017 – 09 Feb 2017 : The Running Fix on an Ellipsoid

1. 2017-02-02 13:19 Andrés Ruiz
2. 2017-02-03 15:22 Robin Stuart
3. 2017-02-03 18:55 Brad Morris
4. 2017-02-03 20:19 Robin Stuart
5. 2017-02-03 21:08 Brad Morris
6. 2017-02-04 07:44 Gary LaPook
7. 2017-02-04 20:10 Robin Stuart
8. 2017-02-04 20:33 David Pike
9. 2017-02-05 14:21 Geoffrey Kolbe
10. 2017-02-05 14:42 Robin Stuart
11. 2017-02-05 14:57 Frank Reed
12. 2017-02-05 15:11 Robin Stuart
13. 2017-02-05 16:01 Robin Stuart
14. 2017-02-05 17:04 Andrés Ruiz
15. 2017-02-05 19:35 Robin Stuart
16. 2017-02-05 20:57 Gary LaPook
17. 2017-02-05 20:58 Frank Reed
18. 2017-02-06 08:36 Andrés Ruiz
19. 2017-02-06 13:49 Andrés Ruiz
20. 2017-02-06 15:14 Robin Stuart
21. 2017-02-06 17:09 Robin Stuart
22. 2017-02-07 09:42 Andrés Ruiz
23. 2017-02-07 16:32 Robin Stuart
24. 2017-02-09 14:58 Andrés Ruiz
25. 2017-02-09 17:15 Robin Stuart

28 Jan 2017 – 09 Feb 2017 : Transcript Of Worsleys Navigational Log Book

1. 2017-01-28 23:53 Brad Morris
2. 2017-01-29 13:49 Lars Bergman
3. 2017-01-29 17:09 Brad Morris
4. 2017-01-29 20:57 Brad Morris
5. 2017-01-29 22:21 Lars Bergman
6. 2017-01-30 16:19 Robin Stuart
7. 2017-02-01 18:53 Brad Morris
8. 2017-02-01 19:47 Brad Morris
9. 2017-02-01 20:53 Robin Stuart
10. 2017-02-02 01:06 Bruce J. Pennino
11. 2017-02-02 01:39 Brad Morris
12. 2017-02-02 01:46 Brad Morris
13. 2017-02-02 02:11 Robin Stuart
14. 2017-02-02 03:17 Robin Stuart
15. 2017-02-02 13:03 Lars Bergman
16. 2017-02-02 14:22 Lars Bergman
17. 2017-02-02 15:30 Brad Morris
18. 2017-02-07 17:03 Robin Stuart
19. 2017-02-07 17:23 Robin Stuart
20. 2017-02-07 18:05 Brad Morris
21. 2017-02-07 18:22 Brad Morris
22. 2017-02-07 20:27 Robin Stuart
23. 2017-02-07 22:30 Lars Bergman
24. 2017-02-07 23:30 Brad Morris
25. 2017-02-08 00:05 Brad Morris
26. 2017-02-08 03:54 Don Seltzer
27. 2017-02-08 04:14 Brad Morris
28. 2017-02-08 13:16 Robin Stuart
29. 2017-02-08 13:19 Don Seltzer
30. 2017-02-08 22:04 Brad Morris
31. 2017-02-08 22:12 Brad Morris
32. 2017-02-08 22:58 Brad Morris
33. 2017-02-09 00:46 Bruce J. Pennino
34. 2017-02-09 03:24 Frank Reed
35. 2017-02-09 04:50 David C
36. 2017-02-09 06:02 David C
37. 2017-02-09 07:11 David C
38. 2017-02-09 07:31 David C
39. 2017-02-09 07:57 David C
40. 2017-02-09 08:27 David C
41. 2017-02-09 15:21 Brad Morris
42. 2017-02-09 15:35 Brad Morris
43. 2017-02-09 18:00 Michael Bradley
44. 2017-02-09 20:31 Robin Stuart
45. 2017-02-09 20:51 Robin Stuart

09 Feb 2017 – 10 Feb 2017 : Re: 360 degree slide rule trig

1. 2017-02-09 06:44 Paul Hirose
2. 2017-02-10 20:30 Paul Hirose

11 Feb 2017 – 11 Feb 2017 : Sun Slow Day

1. 2017-02-11 02:29 Frank Reed

07 Feb 2017 – 11 Feb 2017 : One Assumed position or Six?

1. 2017-02-07 11:55 Mike Freeman
2. 2017-02-07 21:43 Greg Rudzinski
3. 2017-02-08 02:33 Gary LaPook
4. 2017-02-08 02:59 Gary LaPook
5. 2017-02-11 10:58 David Pike

11 Feb 2017 – 11 Feb 2017 : Ocean Navigator March/April 2017 Nav Problem

1. 2017-02-11 03:28 Stan K
2. 2017-02-11 04:04 Robert VanderPol II
3. 2017-02-11 04:09 Frank Reed
4. 2017-02-11 04:29 Robert VanderPol II
5. 2017-02-11 04:35 Frank Reed
6. 2017-02-11 15:48 John D. Howard
7. 2017-02-11 16:39 Stan K

10 Feb 2017 – 12 Feb 2017 : Worsley's Epitome

1. 2017-02-10 14:37 Robin Stuart
2. 2017-02-10 15:37 Frank Reed
3. 2017-02-10 16:04 Lars Bergman
4. 2017-02-10 17:32 Brad Morris
5. 2017-02-10 18:01 Sean C
6. 2017-02-10 20:33 David C
7. 2017-02-10 21:27 Lars Bergman
8. 2017-02-11 00:42 Brad Morris
9. 2017-02-11 02:08 David C
10. 2017-02-11 02:23 Frank Reed
11. 2017-02-11 02:23 Brad Morris
12. 2017-02-11 04:18 David C
13. 2017-02-11 04:37 David C
14. 2017-02-11 04:54 Brad Morris
15. 2017-02-11 05:02 Brad Morris
16. 2017-02-11 06:16 David C
17. 2017-02-12 00:43 David C
18. 2017-02-12 02:01 Brad Morris

11 Feb 2017 – 13 Feb 2017 : The Orion North Arrow

1. 2017-02-11 03:06 Frank Reed
2. 2017-02-11 05:58 Bob Goethe
3. 2017-02-11 11:31 David Pike
4. 2017-02-11 13:18 David Pike
5. 2017-02-11 16:11 David Pike
6. 2017-02-11 17:32 Frank Reed
7. 2017-02-11 20:22 David Pike
8. 2017-02-11 22:15 Peter Monta
9. 2017-02-12 04:57 Peter Monta
10. 2017-02-12 11:02 David Pike
11. 2017-02-12 12:51 David Pike
12. 2017-02-12 19:20 Frank Reed
13. 2017-02-12 21:17 Frank Reed
14. 2017-02-12 22:35 David Pike
15. 2017-02-12 23:56 Frank Reed
16. 2017-02-13 01:42 Peter Monta
17. 2017-02-13 01:47 Brad Morris
18. 2017-02-13 04:57 Peter Monta
19. 2017-02-13 14:19 David Pike

14 Feb 2017 – 15 Feb 2017 : Cape Belsham, At Last!!

1. 2017-02-14 16:36 Brad Morris
2. 2017-02-15 01:52 David C
3. 2017-02-15 14:52 Brad Morris

13 Feb 2017 – 15 Feb 2017 : Follow the Water Jar to Aries

1. 2017-02-13 01:05 Frank Reed
2. 2017-02-15 16:43 Brian Walton

16 Feb 2017 – 16 Feb 2017 : Early Nautical Almanacs

1. 2017-02-16 15:09 Robin Stuart

16 Feb 2017 – 16 Feb 2017 : Transcript of Worsley's Log, version 3.6

1. 2017-02-16 17:28 Brad Morris

16 Feb 2017 – 16 Feb 2017 : Worsley wrote a JOKE

1. 2017-02-16 17:30 Brad Morris
2. 2017-02-16 21:35 Noell Wilson

26 Jan 2017 – 17 Feb 2017 : Cape Belsham

1. 2017-01-26 23:20 Brad Morris
2. 2017-01-29 00:10 Brad Morris
3. 2017-01-29 14:59 Robin Stuart
4. 2017-01-29 17:43 Brad Morris
5. 2017-01-29 21:53 Robin Stuart
6. 2017-02-09 21:19 Robin Stuart
7. 2017-02-09 22:41 Lars Bergman
8. 2017-02-09 23:58 Brad Morris
9. 2017-02-10 01:08 Brad Morris
10. 2017-02-10 02:07 Don Seltzer
11. 2017-02-10 04:23 David C
12. 2017-02-10 06:18 Henry Halboth
13. 2017-02-10 08:33 Brad Morris
14. 2017-02-10 15:39 Lars Bergman
15. 2017-02-10 15:57 Brad Morris
16. 2017-02-10 21:34 Robin Stuart
17. 2017-02-12 01:52 David C
18. 2017-02-14 02:53 David C
19. 2017-02-14 07:00 David C
20. 2017-02-14 08:01 David C
21. 2017-02-14 09:17 Bob Crawley
22. 2017-02-14 11:53 Lars Bergman
23. 2017-02-14 12:32 Robin Stuart
24. 2017-02-14 14:53 Brad Morris
25. 2017-02-14 14:54 Brad Morris
26. 2017-02-14 19:51 Frank Reed
27. 2017-02-14 20:38 Brad Morris
28. 2017-02-14 21:13 Frank Reed
29. 2017-02-14 21:25 Greg Rudzinski
30. 2017-02-14 21:50 Brad Morris
31. 2017-02-15 01:35 David C
32. 2017-02-15 02:06 Brad Morris
33. 2017-02-15 05:11 David C
34. 2017-02-15 13:29 Robin Stuart
35. 2017-02-17 07:57 Bob Crawley

16 Feb 2017 – 17 Feb 2017 : The Solar System 1824, 11 planets shown

1. 2017-02-16 22:54 Brad Morris
2. 2017-02-17 00:27 Frank Reed
3. 2017-02-17 13:41 Robin Stuart
4. 2017-02-17 18:16 Paul Dolkas
5. 2017-02-17 19:05 Brad Morris

18 Feb 2017 – 18 Feb 2017 : Mrs Chippy and a tale of two graves

1. 2017-02-18 03:01 David C

18 Feb 2017 – 18 Feb 2017 : ADMIN: Please contribute to NavList Operations

1. 2017-02-18 17:37 Frank Reed

17 Feb 2017 – 20 Feb 2017 : The expression "terrestrial navigation"

1. 2017-02-17 20:01 Frank Reed
2. 2017-02-17 20:49 Tom Sult
3. 2017-02-17 21:19 Lars Bergman
4. 2017-02-17 22:11 Frank Reed
5. 2017-02-18 06:06 Lars Bergman
6. 2017-02-18 06:34 Henry Halboth
7. 2017-02-18 14:23 Don Seltzer
8. 2017-02-18 18:15 Frank Reed
9. 2017-02-18 18:23 Frank Reed
10. 2017-02-18 19:41 Frank Reed
11. 2017-02-18 20:29 Lars Bergman
12. 2017-02-18 22:58 David Pike
13. 2017-02-19 01:17 David C
14. 2017-02-19 03:23 Don Seltzer
15. 2017-02-19 05:55 Henry Halboth
16. 2017-02-19 09:48 David Pike
17. 2017-02-19 10:49 Bill Lionheart
18. 2017-02-19 18:06 John D. Howard
19. 2017-02-20 01:46 Stephen N.G. Davies
20. 2017-02-20 01:56 Stephen N.G. Davies
21. 2017-02-20 02:29 Frank Reed
22. 2017-02-20 09:56 David Pike

20 Feb 2017 – 20 Feb 2017 : The "Easy Lunars" article in FB2 format

1. 2017-02-20 17:05 Tony Oz
2. 2017-02-20 19:18 Frank Reed

21 Feb 2017 – 21 Feb 2017 : 360 degree Bygrave slide rule sight reduction

1. 2017-02-21 07:20 Paul Hirose

19 Feb 2017 – 21 Feb 2017 : A, B & C Azimuth Tables Questions

1. 2017-02-19 21:10 Doug MacPherson
2. 2017-02-19 22:26 David C
3. 2017-02-20 02:26 Doug MacPherson
4. 2017-02-20 14:59 Greg Rudzinski
5. 2017-02-21 08:26 David C

22 Feb 2017 – 22 Feb 2017 : Re: Keeping Cel Nav alive and relevant

1. 2017-02-22 14:32 John Rizzuto
2. 2017-02-22 20:37 Henry Halboth
3. 2017-02-22 23:09 Tom Sult
4. 2017-02-22 23:18 Brad Morris

23 Feb 2017 – 23 Feb 2017 : Re-doing my homework (by Bygrave)

1. 2017-02-23 00:41 Tony Oz
2. 2017-02-23 08:18 Paul Hirose
3. 2017-02-23 10:26 Tony Oz

22 Feb 2017 – 25 Feb 2017 : The ultimate celestial navigation time piece

1. 2017-02-22 16:45 Jim Hickey
2. 2017-02-22 17:09 John D. Howard
3. 2017-02-22 17:58 Bruce J. Pennino
4. 2017-02-22 18:05 Bill Lionheart
5. 2017-02-22 18:37 Bill Morris
6. 2017-02-22 19:30 Brad Morris
7. 2017-02-22 20:32 Henry Halboth
8. 2017-02-22 22:44 Tom Sult
9. 2017-02-23 00:44 Ed Hlywa
10. 2017-02-23 02:28 Brad Morris
11. 2017-02-23 08:38 Bill Lionheart
12. 2017-02-23 19:20 Herman Dekker
13. 2017-02-23 22:36 Tony Oz
14. 2017-02-23 23:26 Greg Rudzinski
15. 2017-02-24 03:22 Francis Upchurch
16. 2017-02-24 06:43 Bill Lionheart
17. 2017-02-24 14:09 Sean C
18. 2017-02-24 14:22 Jim Hickey
19. 2017-02-24 14:32 Jim Hickey
20. 2017-02-24 14:42 Jim Hickey
21. 2017-02-24 16:18 Tom Sult
22. 2017-02-24 17:32 Gary LaPook
23. 2017-02-25 15:14 Greg Rudzinski
24. 2017-02-25 20:22 Tony Oz
25. 2017-02-25 20:30 Frank Reed

26 Feb 2017 – 28 Feb 2017 : How accurate is pinned lat & long on Google Earth?

1. 2017-02-26 19:21 David Pike
2. 2017-02-27 07:43 Geoffrey Kolbe
3. 2017-02-27 14:08 Bruce J. Pennino
4. 2017-02-27 15:25 Frank Reed
5. 2017-02-27 15:46 Don Seltzer
6. 2017-02-27 17:54 David Pike
7. 2017-02-27 20:25 David C
8. 2017-02-27 21:42 Bruce J. Pennino
9. 2017-02-27 22:26 Brad Morris
10. 2017-02-28 02:59 David C

26 Feb 2017 – 01 Mar 2017 : How do you memorise the stars' names?

1. 2017-02-26 00:34 Tony Oz
2. 2017-02-26 02:51 Frank Reed
3. 2017-02-26 09:02 Tony Oz
4. 2017-02-26 13:16 Greg Rudzinski
5. 2017-02-26 18:06 Frank Reed
6. 2017-02-26 19:36 Alexandre Eremenko
7. 2017-02-26 19:48 Tony Oz
8. 2017-02-26 20:01 Tony Oz
9. 2017-02-26 20:34 Jackson McDonald
10. 2017-02-26 20:55 Frank Reed
11. 2017-02-26 21:11 Frank Reed
12. 2017-02-27 00:03 Steve E. Bryant
13. 2017-02-27 07:33 Tony Oz
14. 2017-02-27 21:41 Annaig Labornez
15. 2017-02-27 22:53 Frank Reed
16. 2017-02-28 15:18 Frank Reed
17. 2017-02-28 17:23 Robin Stuart
18. 2017-02-28 18:35 Tony Oz
19. 2017-02-28 23:40 Frank Reed
20. 2017-03-01 04:16 Robert VanderPol II
21. 2017-03-01 09:25 Tony Oz
22. 2017-03-01 15:21 Robin Stuart
23. 2017-03-01 18:04 Bob Goethe
24. 2017-03-01 23:32 Andrew Nikitin

25 Feb 2017 – 02 Mar 2017 : Symmedian talk

1. 2017-02-25 18:12 Bill Lionheart
2. 2017-02-25 18:27 Frank Reed
3. 2017-02-25 18:54 Greg Rudzinski
4. 2017-02-25 20:11 Bill Lionheart
5. 2017-02-25 20:47 Frank Reed
6. 2017-03-01 15:02 Geoffrey Butt
7. 2017-03-01 16:53 Bill Lionheart
8. 2017-03-02 00:10 Gary LaPook
9. 2017-03-02 02:35 Hewitt Schlereth
10. 2017-03-02 07:39 Gary LaPook
11. 2017-03-02 10:51 Bill Lionheart

02 Mar 2017 – 02 Mar 2017 : Re: Weir's Azimuth Diagtam

1. 2017-03-02 14:33 Bob Crawley

02 Mar 2017 – 02 Mar 2017 : Stars could have saved them

1. 2017-03-02 15:52 Frank Reed
2. 2017-03-02 18:38 John D. Howard
3. 2017-03-02 21:19 Tom Sult

03 Mar 2017 – 03 Mar 2017 : Collection of books about chronometers, etc.

1. 2017-03-03 00:48 Jackson McDonald

03 Mar 2017 – 03 Mar 2017 : Could navigation be simpler??

1. 2017-03-03 18:33 Lu Abel
2. 2017-03-03 20:28 John D. Howard

02 Mar 2017 – 03 Mar 2017 : The perils of going to sea relying on a minimum of modern electronics

1. 2017-03-02 09:33 David Pike
2. 2017-03-02 23:32 Lu Abel
3. 2017-03-03 02:29 Frank Reed
4. 2017-03-03 03:00 Frank Reed
5. 2017-03-03 06:18 Gary LaPook
6. 2017-03-03 08:11 Bill Lionheart
7. 2017-03-03 17:05 Lu Abel
8. 2017-03-03 17:51 Lu Abel
9. 2017-03-03 18:27 Frank Reed
10. 2017-03-03 19:46 Bill Lionheart
11. 2017-03-03 21:08 Robert VanderPol II
12. 2017-03-03 22:16 Francis Upchurch

03 Mar 2017 – 04 Mar 2017 : Versions of Dreisonstok, H.O. 208

1. 2017-03-03 03:33 Peter B
2. 2017-03-03 06:16 Gary LaPook
3. 2017-03-03 13:53 Greg Rudzinski
4. 2017-03-03 20:33 Robert Pearson
5. 2017-03-03 21:10 Noell Wilson
6. 2017-03-03 21:58 Peter B
7. 2017-03-04 00:01 Bruce J. Pennino

03 Mar 2017 – 04 Mar 2017 : Retrograde motion of the planets

1. 2017-03-03 04:47 Steve E. Bryant
2. 2017-03-03 07:08 Sean C
3. 2017-03-03 07:58 Steve E. Bryant
4. 2017-03-03 08:45 Steve E. Bryant
5. 2017-03-03 17:28 Peter B
6. 2017-03-03 21:39 Bill B
7. 2017-03-03 22:03 Bill B
8. 2017-03-03 22:15 Frank Reed
9. 2017-03-04 23:41 Bill B

02 Mar 2017 – 05 Mar 2017 : Occultation of Alderbaran, 4 March

1. 2017-03-02 12:51 Brad Morris
2. 2017-03-05 04:34 Brad Morris

06 Mar 2017 – 06 Mar 2017 : Mirror adjusting wrench

1. 2017-03-06 11:51 Jerry Castillo
2. 2017-03-06 14:40 Greg Rudzinski
3. 2017-03-06 19:40 Paul Kamen

07 Mar 2017 – 07 Mar 2017 : Re: Aldebaran occultation / MICA Delta-T Error

1. 2017-03-07 10:57 Sean C

12 Feb 2017 – 07 Mar 2017 : Getting to know a sextant.

1. 2017-02-12 21:32 Tony Oz
2. 2017-02-13 02:07 Greg Rudzinski
3. 2017-02-14 18:31 Tony Oz
4. 2017-02-14 20:21 Brad Morris
5. 2017-02-14 22:59 Brad Morris
6. 2017-02-15 00:02 Brad Morris
7. 2017-02-15 00:23 Frank Reed
8. 2017-02-15 00:42 Brad Morris
9. 2017-02-15 09:22 Tony Oz
10. 2017-02-15 23:09 Tony Oz
11. 2017-02-15 23:39 Bob Goethe
12. 2017-02-16 04:05 Robert VanderPol II
13. 2017-02-16 23:08 Tony Oz
14. 2017-02-17 00:45 Frank Reed
15. 2017-02-17 19:01 Tony Oz
16. 2017-02-17 20:43 Bob Goethe
17. 2017-02-18 00:58 Sean C
18. 2017-02-18 15:36 Frank Reed
19. 2017-02-25 21:24 Tony Oz
20. 2017-02-25 22:01 Tony Oz
21. 2017-02-25 22:22 Frank Reed
22. 2017-03-01 19:32 Bob Crawley
23. 2017-03-02 01:20 Frank Reed
24. 2017-03-05 00:43 Tony Oz
25. 2017-03-06 16:34 Tony Oz
26. 2017-03-06 17:26 Alexandre Eremenko
27. 2017-03-07 11:46 Tony Oz

05 Mar 2017 – 07 Mar 2017 : Aldebaran occultation

1. 2017-03-05 05:14 Alexandre Eremenko
2. 2017-03-05 12:38 Wayne Hilliard
3. 2017-03-05 18:21 Frank Reed
4. 2017-03-05 19:04 Alexandre Eremenko
5. 2017-03-05 19:06 Brad Morris
6. 2017-03-05 20:19 Paul Hirose
7. 2017-03-05 23:07 Brad Morris
8. 2017-03-06 01:00 Paul Hirose
9. 2017-03-06 01:39 Peter Monta
10. 2017-03-06 03:40 Brad Morris
11. 2017-03-06 11:38 Sean C
12. 2017-03-06 13:27 Alexandre Eremenko
13. 2017-03-06 13:32 Alexandre Eremenko
14. 2017-03-06 13:44 Alexandre Eremenko
15. 2017-03-06 14:26 Lars Bergman
16. 2017-03-06 17:43 Alexandre Eremenko
17. 2017-03-06 20:33 Paul Hirose
18. 2017-03-06 22:51 Peter Monta
19. 2017-03-07 02:26 Alexandre Eremenko
20. 2017-03-07 02:31 Frank Reed
21. 2017-03-07 06:36 Sean C
22. 2017-03-07 16:55 Brad Morris
23. 2017-03-07 17:20 Brad Morris
24. 2017-03-07 17:34 Frank Reed
25. 2017-03-07 18:07 Brad Morris
26. 2017-03-07 19:05 Paul Hirose
27. 2017-03-07 19:55 Lars Bergman

09 Mar 2017 – 09 Mar 2017 : Astron spreadsheet version 1.13 released

1. 2017-03-09 19:01 Peter Hakel

11 Mar 2017 – 11 Mar 2017 : Hong Kong sextants

1. 2017-03-11 00:22 Frank Reed
2. 2017-03-11 01:11 Sean C
3. 2017-03-11 02:24 Tom Sult
4. 2017-03-11 03:04 John D. Howard
5. 2017-03-11 03:43 Bill Morris
6. 2017-03-11 03:59 Stephen N.G. Davies
7. 2017-03-11 08:11 Tony Oz

10 Mar 2017 – 13 Mar 2017 : C.Plath Yachtsman Sextant

1. 2017-03-10 16:53 Greg Rudzinski
2. 2017-03-10 20:25 John D. Howard
3. 2017-03-11 04:09 Stephen N.G. Davies
4. 2017-03-11 10:45 Michael Bradley
5. 2017-03-11 15:33 Jackson McDonald
6. 2017-03-11 23:14 Bill Morris
7. 2017-03-12 23:16 Bill Morris
8. 2017-03-13 01:21 Stephen N.G. Davies

14 Mar 2017 – 14 Mar 2017 : Re: Celesticomp

1. 2017-03-14 16:05 Paul Noble
2. 2017-03-14 19:31 Ken Gebhart
3. 2017-03-14 19:31 Greg Rudzinski
4. 2017-03-14 19:52 Stan K
5. 2017-03-14 20:49 Frank Reed
6. 2017-03-14 20:52 Paul Noble

27 Feb 2017 – 16 Mar 2017 : Re: New compact backup CELNAV system

1. 2017-02-27 19:27 Tony Oz
2. 2017-03-15 17:47 Tony Oz
3. 2017-03-15 20:59 Tony Oz
4. 2017-03-16 09:36 Tony Oz

16 Mar 2017 – 16 Mar 2017 : Ultra Light CN Kit

1. 2017-03-16 15:25 Greg Rudzinski

15 Mar 2017 – 16 Mar 2017 : Re: Advice on Box Sextant

1. 2017-03-15 18:02 Ron Wisner
2. 2017-03-16 14:21 Robert Eno
3. 2017-03-16 18:10 Alexandre Eremenko
4. 2017-03-16 19:03 Francis Upchurch

16 Mar 2017 – 17 Mar 2017 : Comparing SR methods?

1. 2017-03-16 12:41 Tony Oz
2. 2017-03-17 10:56 Michael Bradley

24 Feb 2017 – 17 Mar 2017 : Re: The flat Bygrave

1. 2017-02-24 23:25 Tony Oz
2. 2017-02-25 14:23 Robin Stuart
3. 2017-02-25 20:03 Tony Oz
4. 2017-02-25 21:09 Robin Stuart
5. 2017-03-17 14:15 Tony Oz

17 Mar 2017 – 17 Mar 2017 : Log-scales laser-etching?

1. 2017-03-17 11:31 Tony Oz
2. 2017-03-17 15:55 Bob Goethe

17 Mar 2017 – 18 Mar 2017 : Definition Sight Reduction Tables

1. 2017-03-17 16:53 Mike Freeman
2. 2017-03-17 20:37 Robert VanderPol II
3. 2017-03-17 22:41 Stan K
4. 2017-03-18 03:24 Ken Gebhart

18 Mar 2017 – 18 Mar 2017 : Solar Eclipse Aug 21

1. 2017-03-18 00:12 Brad Morris
2. 2017-03-18 03:47 Paul Hirose
3. 2017-03-18 13:51 Brad Morris
4. 2017-03-18 14:08 Alexandre Eremenko

18 Mar 2017 – 18 Mar 2017 : Sight, site, cite

1. 2017-03-18 01:08 Gary LaPook
2. 2017-03-18 03:28 Robert VanderPol II
3. 2017-03-18 20:45 David C

16 Mar 2017 – 19 Mar 2017 : Learning celestial navigation

1. 2017-03-16 23:08 Tom Regan
2. 2017-03-17 00:20 Doug MacPherson
3. 2017-03-17 00:22 Greg Rudzinski
4. 2017-03-17 02:34 Alexandre Eremenko
5. 2017-03-17 06:34 David C
6. 2017-03-17 13:53 Bruce J. Pennino
7. 2017-03-17 15:19 Noell Wilson
8. 2017-03-17 16:37 Bob Goethe
9. 2017-03-17 17:33 Hewitt Schlereth
10. 2017-03-17 19:57 John D. Howard
11. 2017-03-17 20:25 Robert VanderPol II
12. 2017-03-17 20:52 Lu Abel
13. 2017-03-18 01:03 Gary LaPook
14. 2017-03-18 19:40 Tom Regan
15. 2017-03-18 19:42 Tom Regan
16. 2017-03-18 19:46 Tom Regan
17. 2017-03-18 20:14 Tom Regan
18. 2017-03-18 20:54 Gary LaPook
19. 2017-03-18 21:01 Stan K
20. 2017-03-18 21:48 Doug MacPherson
21. 2017-03-18 22:28 Jackson McDonald
22. 2017-03-19 01:21 Wayne Hilliard

20 Mar 2017 – 20 Mar 2017 : Could I have seen Mercury yesterday evening?

1. 2017-03-20 12:59 Tony Oz
2. 2017-03-20 14:13 Frank Reed
3. 2017-03-20 17:10 Tony Oz
4. 2017-03-20 19:22 Alexandre Eremenko
5. 2017-03-20 20:11 David Pike
6. 2017-03-20 23:58 Frank Reed

20 Mar 2017 – 21 Mar 2017 : WWII bubble sextants and radium

1. 2017-03-20 22:14 Chris Caswell
2. 2017-03-21 09:00 Gary LaPook

21 Mar 2017 – 22 Mar 2017 : CelNav on a Cruise Ship

1. 2017-03-21 07:51 Sean C
2. 2017-03-21 16:34 Ed Popko
3. 2017-03-21 17:57 Gary LaPook
4. 2017-03-22 02:25 Sean C
5. 2017-03-22 03:07 Ken Gebhart
6. 2017-03-22 05:03 Sean C

17 Mar 2017 – 22 Mar 2017 : S-tables: where to have a look at them?

1. 2017-03-17 21:25 Tony Oz
2. 2017-03-17 22:31 Stan K
3. 2017-03-19 09:54 Tony Oz
4. 2017-03-19 14:11 Robert VanderPol II
5. 2017-03-20 01:07 Stan K
6. 2017-03-20 08:52 Tony Oz
7. 2017-03-20 12:51 Robert VanderPol II
8. 2017-03-20 14:10 Frank Reed
9. 2017-03-20 18:55 Stan K
10. 2017-03-20 20:05 Robert VanderPol II
11. 2017-03-20 22:38 Robert VanderPol II
12. 2017-03-20 22:45 Brad Morris
13. 2017-03-20 23:55 Stan K
14. 2017-03-21 00:07 Stan K
15. 2017-03-21 00:17 Brad Morris
16. 2017-03-21 01:16 Frank Reed
17. 2017-03-21 01:29 Stan K
18. 2017-03-21 02:01 Robert VanderPol II
19. 2017-03-21 02:45 Robert VanderPol II
20. 2017-03-21 08:53 Tony Oz
21. 2017-03-22 01:29 Frank Reed
22. 2017-03-22 02:54 Robert VanderPol II
23. 2017-03-22 07:54 Tony Oz

21 Mar 2017 – 22 Mar 2017 : Cape Belsham and Point Wild relocated on Chart 29104

1. 2017-03-21 19:09 Robin Stuart
2. 2017-03-21 19:24 Brad Morris
3. 2017-03-21 22:26 Ed Popko
4. 2017-03-22 02:15 Frank Reed
5. 2017-03-22 16:37 Bruce J. Pennino

23 Mar 2017 – 23 Mar 2017 : Sailing a Family Around the World

1. 2017-03-23 15:44 Frank Reed
2. 2017-03-23 18:30 Frank Reed

23 Mar 2017 – 23 Mar 2017 : NOAA invite comments on National Charting Plan.

1. 2017-03-23 21:19 Jackson McDonald

24 Mar 2017 – 24 Mar 2017 : Re: Two 19th century octants & sympiesometer

1. 2017-03-24 18:34 Noell Wilson

22 Mar 2017 – 24 Mar 2017 : H.O. 203/204, Littlehales, Hydrographic Engineer

1. 2017-03-22 03:03 Brad Morris
2. 2017-03-22 13:07 Robert VanderPol II
3. 2017-03-22 14:41 Brad Morris
4. 2017-03-22 20:21 Paul Bedel
5. 2017-03-22 22:36 Brad Morris
6. 2017-03-23 02:35 Frank Reed
7. 2017-03-23 03:25 Brad Morris
8. 2017-03-23 05:09 Henry Halboth
9. 2017-03-23 07:15 Stephen N.G. Davies
10. 2017-03-23 15:17 Frank Reed
11. 2017-03-23 15:48 Brad Morris
12. 2017-03-23 23:09 Robert Pearson
13. 2017-03-24 00:37 David C
14. 2017-03-24 03:22 Frank Reed
15. 2017-03-24 20:35 Brad Morris

25 Mar 2017 – 25 Mar 2017 : Wallet Natural Trig Table

1. 2017-03-25 17:22 Greg Rudzinski

23 Mar 2017 – 25 Mar 2017 : Two 19th century octants

1. 2017-03-23 21:37 Steven Telsey
2. 2017-03-23 22:26 Tom Sult
3. 2017-03-23 23:07 Brad Morris
4. 2017-03-24 04:02 Bill Morris
5. 2017-03-24 05:57 Stephen N.G. Davies
6. 2017-03-24 12:54 Steven Telsey
7. 2017-03-24 12:57 Steven Telsey
8. 2017-03-24 23:42 Ed Popko
9. 2017-03-25 12:12 Steven Telsey
10. 2017-03-25 16:09 Brad Morris
11. 2017-03-25 19:27 Steven Telsey

26 Mar 2017 – 26 Mar 2017 : Article on sextant repair

1. 2017-03-26 20:05 Don Seltzer

26 Mar 2017 – 26 Mar 2017 : Little Moon, big Venus, or a reflection?

1. 2017-03-26 19:28 David Pike
2. 2017-03-26 21:23 Frank Reed

26 Mar 2017 – 27 Mar 2017 : Declination

1. 2017-03-26 07:28 Mike Freeman
2. 2017-03-26 16:16 Gary LaPook
3. 2017-03-27 10:01 David Pike

26 Mar 2017 – 27 Mar 2017 : AP3270 Table 5

1. 2017-03-26 07:45 Mike Freeman
2. 2017-03-26 16:21 Gary LaPook
3. 2017-03-26 20:50 David Pike
4. 2017-03-27 08:32 David Pike
5. 2017-03-27 13:29 David Pike

26 Mar 2017 – 27 Mar 2017 : Littlehales and the graphical methods.

1. 2017-03-26 17:40 Annaig Labornez
2. 2017-03-27 08:47 Paul Bedel
3. 2017-03-27 15:47 Hewitt Schlereth

28 Mar 2017 – 28 Mar 2017 : AP3270 Table 5 Correction to HC for minutes of declination

1. 2017-03-28 07:19 Mike Freeman
2. 2017-03-28 09:10 David Pike

26 Mar 2017 – 28 Mar 2017 : V corrections?

1. 2017-03-26 07:21 Mike Freeman
2. 2017-03-27 09:25 David Pike
3. 2017-03-27 17:34 Noell Wilson
4. 2017-03-28 04:33 Gary LaPook
5. 2017-03-28 08:10 David Pike
6. 2017-03-28 14:48 Gary LaPook
7. 2017-03-28 14:50 Gary LaPook
8. 2017-03-28 15:57 Gary LaPook
9. 2017-03-28 17:12 Frank Reed

29 Mar 2017 – 29 Mar 2017 : Types of Solar Eclipses

1. 2017-03-29 05:27 Steve E. Bryant

29 Mar 2017 – 29 Mar 2017 : WatchCheck

1. 2017-03-29 18:59 Jim Hickey

21 Mar 2017 – 30 Mar 2017 : Venus at inferior conjunction

1. 2017-03-21 00:36 Frank Reed
2. 2017-03-23 02:45 Frank Reed
3. 2017-03-30 11:17 Tony Oz

28 Mar 2017 – 30 Mar 2017 : An OCR attempt of the "Table de Point Miniature" article.

1. 2017-03-28 15:39 Tony Oz
2. 2017-03-29 08:59 Tony Oz
3. 2017-03-30 04:03 Robert Pearson
4. 2017-03-30 04:41 Robert Pearson
5. 2017-03-30 08:22 Tony Oz
6. 2017-03-30 17:57 Robert Pearson

31 Mar 2017 – 31 Mar 2017 : LOP

1. 2017-03-31 07:11 Mike Freeman

31 Mar 2017 – 31 Mar 2017 : Long-distance time-signal reception

1. 2017-03-31 15:32 Tony Oz
2. 2017-03-31 16:55 Frank Reed
3. 2017-03-31 18:58 Tony Oz
4. 2017-03-31 20:49 Örjan Sandström

31 Mar 2017 – 31 Mar 2017 : Latitude at noon

1. 2017-03-31 19:47 John D. Howard
2. 2017-03-31 21:41 Frank Reed
3. 2017-03-31 21:59 John D. Howard

31 Mar 2017 – 31 Mar 2017 : Navigation Conference: Nov. 3-5, 2017 Mystic Seaport

1. 2017-03-31 22:32 Frank Reed

02 Mar 2017 – 31 Mar 2017 : Latitude and longitude around noon

1. 2017-03-02 21:25 Frank Reed
2. 2017-03-02 22:17 Herman Dekker
3. 2017-03-02 22:29 Robert VanderPol II
4. 2017-03-02 22:49 Greg Rudzinski
5. 2017-03-02 23:21 Peter Hakel
6. 2017-03-02 23:33 John D. Howard
7. 2017-03-02 23:39 John D. Howard
8. 2017-03-03 17:27 Francis Upchurch
9. 2017-03-03 19:06 Frank Reed
10. 2017-03-04 08:59 Francis Upchurch
11. 2017-03-04 11:23 Herman Dekker
12. 2017-03-04 14:49 John D. Howard
13. 2017-03-04 14:52 Francis Upchurch
14. 2017-03-04 15:26 Francis Upchurch
15. 2017-03-04 15:33 Greg Rudzinski
16. 2017-03-04 16:12 Lars Bergman
17. 2017-03-04 16:59 Greg Rudzinski
18. 2017-03-04 23:40 John D. Howard
19. 2017-03-05 00:11 Greg Rudzinski
20. 2017-03-05 00:34 Herman Dekker
21. 2017-03-05 07:14 Francis Upchurch
22. 2017-03-05 16:45 Michael Bradley
23. 2017-03-05 19:33 Bob Crawley
24. 2017-03-06 04:45 Bruce J. Pennino
25. 2017-03-06 06:11 Francis Upchurch
26. 2017-03-06 16:43 Michael Bradley
27. 2017-03-07 08:35 Bill Ritchie
28. 2017-03-09 07:57 Rafal O.
29. 2017-03-09 10:48 Rafal O.
30. 2017-03-09 12:16 Rafal O.
31. 2017-03-09 13:09 Greg Rudzinski
32. 2017-03-09 17:44 John D. Howard
33. 2017-03-09 23:34 Brad Morris
34. 2017-03-10 15:50 Henry Halboth
35. 2017-03-10 15:55 Rafal O.
36. 2017-03-10 16:03 Bob Crawley
37. 2017-03-10 17:21 Greg Rudzinski
38. 2017-03-11 00:42 Sean C
39. 2017-03-11 04:43 Bill Ritchie
40. 2017-03-25 00:57 Bruce J. Pennino
41. 2017-03-26 18:31 Francis Upchurch
42. 2017-03-27 00:17 Frank Reed
43. 2017-03-27 20:23 Robin Stuart
44. 2017-03-27 22:13 Brad Morris
45. 2017-03-28 14:57 Lars Bergman
46. 2017-03-28 17:44 Frank Reed
47. 2017-03-29 11:35 Robin Stuart
48. 2017-03-30 03:35 Peter Hakel
49. 2017-03-30 11:48 Brad Morris
50. 2017-03-30 16:10 Peter Hakel
51. 2017-03-30 16:30 Frank Reed
52. 2017-03-30 17:09 Frank Reed
53. 2017-03-30 17:39 Brad Morris
54. 2017-03-30 20:28 Lars Bergman
55. 2017-03-30 22:05 Bill Ritchie
56. 2017-03-30 22:07 Örjan Sandström
57. 2017-03-31 04:19 Francis Upchurch
58. 2017-03-31 09:42 Örjan Sandström
59. 2017-03-31 22:59 Sean C

01 Apr 2017 – 01 Apr 2017 : Analysis of Meridian Transit Sights

1. 2017-04-01 03:21 David Fleming

31 Mar 2017 – 02 Apr 2017 : Re: Lop

1. 2017-03-31 19:46 David Pike
2. 2017-04-01 07:07 Mike Freeman
3. 2017-04-01 13:46 Herman Dekker
4. 2017-04-01 17:05 Gary LaPook
5. 2017-04-02 00:59 Stan K
6. 2017-04-02 11:54 David Pike
7. 2017-04-02 16:33 David Pike
8. 2017-04-02 20:12 David Pike

02 Apr 2017 – 03 Apr 2017 : USNO Oceanography Portal down

1. 2017-04-02 12:35 Ed Popko
2. 2017-04-02 17:24 Sean C
3. 2017-04-03 12:00 Sean C

03 Apr 2017 – 03 Apr 2017 : Tick tock: The importance of knowing the right time [BBC World Service]

1. 2017-04-03 16:18 Richard B. Langley

03 Apr 2017 – 03 Apr 2017 : Re: The Wild T4 Theodolite

1. 2017-04-03 20:22 Bruce Mayo

02 Apr 2017 – 04 Apr 2017 : Celestial nav course for professional mariners

1. 2017-04-02 23:35 Paul Hirose
2. 2017-04-03 01:47 Brad Morris
3. 2017-04-03 13:31 Brad Morris
4. 2017-04-03 14:14 Frank Reed
5. 2017-04-03 17:44 Manuel Cruz
6. 2017-04-03 21:06 Henry Halboth
7. 2017-04-04 16:04 Brad Morris

03 Apr 2017 – 05 Apr 2017 : Tinyac on Linux

1. 2017-04-03 18:16 Bruce Mayo
2. 2017-04-03 22:08 Peter Monta
3. 2017-04-03 23:36 Sean C
4. 2017-04-05 04:45 Paul Hirose
5. 2017-04-05 05:03 Paul Hirose

05 Apr 2017 – 05 Apr 2017 : 5/5 Talk in NYC on GPS: American Invention, Global Impact

1. 2017-04-05 16:03 Richard Easton

05 Apr 2017 – 05 Apr 2017 : Status Report on Navigator's Slide Rule

1. 2017-04-05 16:21 Bob Goethe
2. 2017-04-05 21:54 Brad Morris
3. 2017-04-05 22:21 Bob Goethe

03 Apr 2017 – 06 Apr 2017 : Accuracy of consumer-grade GPS/GLONASS nav.equipment?

1. 2017-04-03 10:33 Tony Oz
2. 2017-04-03 18:42 Lu Abel
3. 2017-04-03 20:31 Brad Morris
4. 2017-04-03 21:18 Gary LaPook
5. 2017-04-04 09:39 Tony Oz
6. 2017-04-04 19:38 Bill Lionheart
7. 2017-04-05 01:44 Sean C
8. 2017-04-05 14:20 Bill Lionheart
9. 2017-04-05 15:39 John D. Howard
10. 2017-04-05 16:00 Tony Oz
11. 2017-04-05 16:57 Lu Abel
12. 2017-04-05 17:01 Lu Abel
13. 2017-04-05 18:30 Garret Cost
14. 2017-04-05 20:47 David Pike
15. 2017-04-06 00:15 John D. Howard
16. 2017-04-06 07:33 David Pike
17. 2017-04-06 09:25 Bill Lionheart
18. 2017-04-06 16:47 Lu Abel

06 Apr 2017 – 07 Apr 2017 : Sun Moon LOPs Santa Barbara Channel

1. 2017-04-06 02:01 Greg Rudzinski
2. 2017-04-06 07:10 Andrés Ruiz
3. 2017-04-06 17:20 Greg Rudzinski
4. 2017-04-07 08:53 Andrés Ruiz
5. 2017-04-07 18:12 Greg Rudzinski

05 Apr 2017 – 09 Apr 2017 : Take two: Latitude and longitude around noon

1. 2017-04-05 01:59 Brad Morris
2. 2017-04-05 03:55 Greg Rudzinski
3. 2017-04-05 07:53 David Fleming
4. 2017-04-05 08:20 David Fleming
5. 2017-04-05 16:40 Herman Dekker
6. 2017-04-05 17:53 Peter Hakel
7. 2017-04-06 17:47 Frank Reed
8. 2017-04-06 19:48 Robin Stuart
9. 2017-04-06 20:19 Frank Reed
10. 2017-04-06 23:01 Brad Morris
11. 2017-04-06 23:10 Peter Hakel
12. 2017-04-08 21:20 Brad Morris
13. 2017-04-09 02:07 Greg Rudzinski
14. 2017-04-09 02:09 Frank Reed
15. 2017-04-09 12:41 David Fleming
16. 2017-04-09 14:26 David Fleming

10 Apr 2017 – 10 Apr 2017 : Rate Adjusting Mechanical Watches for CN

1. 2017-04-10 17:48 Greg Rudzinski

10 Apr 2017 – 10 Apr 2017 : Backstaff experiments

1. 2017-04-10 18:44 Lou deMartelly

10 Apr 2017 – 10 Apr 2017 : Index Correction

1. 2017-04-10 17:31 Rafal O.
2. 2017-04-10 19:26 Alexandre Eremenko

03 Apr 2017 – 10 Apr 2017 : Kollsman Sextant Mount - SportsModel

1. 2017-04-03 22:17 David Pike
2. 2017-04-04 00:55 Gary LaPook
3. 2017-04-04 09:02 David Pike
4. 2017-04-04 14:46 John D. Howard
5. 2017-04-04 15:02 John D. Howard
6. 2017-04-04 16:31 David Pike
7. 2017-04-04 17:26 Gary LaPook
8. 2017-04-04 17:30 Gary LaPook
9. 2017-04-10 21:25 David Pike

09 Apr 2017 – 11 Apr 2017 : Chronometer Wrist Watch for 2018 Golden Globe Race

1. 2017-04-09 18:06 Greg Rudzinski
2. 2017-04-10 03:45 Francis Upchurch
3. 2017-04-10 14:42 Greg Rudzinski
4. 2017-04-11 19:22 Greg Rudzinski

03 Apr 2017 – 11 Apr 2017 : Dangerously radioactive navigation instruments

1. 2017-04-03 14:22 Neth X
2. 2017-04-03 17:29 Greg Rudzinski
3. 2017-04-11 11:33 Tony Oz
4. 2017-04-11 21:49 Gary LaPook
5. 2017-04-11 22:45 Paul Dolkas

11 Apr 2017 – 12 Apr 2017 : Azimuth diagram bei Hanno IX

1. 2017-04-11 11:50 Benjamin Bergmann
2. 2017-04-11 16:56 Greg Rudzinski
3. 2017-04-11 17:46 Benjamin Bergmann
4. 2017-04-11 21:59 Michael Bradley
5. 2017-04-12 00:29 Benjamin Bergmann
6. 2017-04-12 09:37 Benjamin Bergmann

13 Apr 2017 – 13 Apr 2017 : A general announcement about Frank Worsley and the Transcript

1. 2017-04-13 01:47 Brad Morris
2. 2017-04-13 10:03 David Pike
3. 2017-04-13 10:56 Alberto Najar

16 Apr 2017 – 16 Apr 2017 : Calculator "watch"

1. 2017-04-16 15:25 Andrew Nikitin

14 Apr 2017 – 17 Apr 2017 : Lunar distance this Sunday

1. 2017-04-14 16:25 Frank Reed
2. 2017-04-14 16:38 Alexandre Eremenko
3. 2017-04-14 17:00 Frank Reed
4. 2017-04-14 17:08 Alexandre Eremenko
5. 2017-04-14 17:16 Alexandre Eremenko
6. 2017-04-14 17:23 Brad Morris
7. 2017-04-14 21:24 Brad Morris
8. 2017-04-14 22:00 Frank Reed
9. 2017-04-14 23:16 Brad Morris
10. 2017-04-17 02:48 Frank Reed

17 Apr 2017 – 17 Apr 2017 : Kollsman periscopic bubble sextant

1. 2017-04-17 22:26 Chris Caswell

06 Apr 2017 – 18 Apr 2017 : Location without DR

1. 2017-04-06 19:16 Marco A. Costa
2. 2017-04-07 09:30 Andrés Ruiz
3. 2017-04-11 11:44 Marco A. Costa
4. 2017-04-14 18:39 Peter Hakel
5. 2017-04-18 05:02 Marco A. Costa
6. 2017-04-18 15:40 Herbert Prinz
7. 2017-04-18 18:21 Marco A. Costa

19 Apr 2017 – 19 Apr 2017 : Re: Sextant of the future?

1. 2017-04-19 02:19 Alan S

13 Apr 2017 – 19 Apr 2017 : Az, Z, Zc and Zn - which one is what? How to use them properly?

1. 2017-04-13 07:08 Tony Oz
2. 2017-04-13 10:53 David Pike
3. 2017-04-13 15:43 John D. Howard
4. 2017-04-17 06:13 Geoffrey Kolbe
5. 2017-04-19 06:49 David Pike

19 Apr 2017 – 19 Apr 2017 : Watch keeping - modern and traditional

1. 2017-04-19 21:43 Jackson McDonald

22 Apr 2017 – 22 Apr 2017 : Swell & dip

1. 2017-04-22 17:01 Mike Freeman
2. 2017-04-22 18:52 Frank Reed

23 Apr 2017 – 24 Apr 2017 : Waves & Dip

1. 2017-04-23 06:36 Mike Freeman
2. 2017-04-23 17:12 Brad Morris
3. 2017-04-23 17:52 Frank Reed
4. 2017-04-23 21:18 David Pike
5. 2017-04-24 06:02 Mike Freeman
6. 2017-04-24 06:48 Mike Freeman
7. 2017-04-24 11:56 Brad Morris

24 Apr 2017 – 26 Apr 2017 : John Wesley Powell Expedition

1. 2017-04-24 19:41 Douglas Stephen
2. 2017-04-25 19:36 Greg Rudzinski
3. 2017-04-26 00:26 Don Seltzer

27 Apr 2017 – 27 Apr 2017 : Isaac Newton's Telescope

1. 2017-04-27 00:14 Brad Morris
2. 2017-04-27 14:06 Brad Morris
3. 2017-04-27 14:39 Frank Reed
4. 2017-04-27 15:12 Brad Morris
5. 2017-04-27 22:31 Ed Popko

17 Apr 2017 – 28 Apr 2017 : Gunther Rules for Navigation

1. 2017-04-17 22:51 Ed Popko
2. 2017-04-18 01:52 Brad Morris
3. 2017-04-19 12:10 Ed Popko
4. 2017-04-20 02:55 Noell Wilson
5. 2017-04-20 16:45 Brad Morris
6. 2017-04-20 19:40 Ed Popko
7. 2017-04-21 02:48 Jackson McDonald
8. 2017-04-21 11:02 Tony Oz
9. 2017-04-22 11:26 Ed Popko
10. 2017-04-22 15:39 Frank Reed
11. 2017-04-22 15:43 Brad Morris
12. 2017-04-23 12:21 Ed Popko
13. 2017-04-28 13:12 Gary LaPook

28 Apr 2017 – 28 Apr 2017 : Real-time UT1-UTC difference.

1. 2017-04-28 12:54 Tony Oz
2. 2017-04-28 20:59 Bill Ritchie

28 Apr 2017 – 29 Apr 2017 : Lunar month

1. 2017-04-28 07:56 Mike Freeman
2. 2017-04-28 16:52 Herbert Prinz
3. 2017-04-29 08:01 Mike Freeman
4. 2017-04-29 14:39 Frank Reed

28 Apr 2017 – 30 Apr 2017 : Tamaya NC-77 Almanac

1. 2017-04-28 17:13 Greg Rudzinski
2. 2017-04-30 17:55 Greg Rudzinski
3. 2017-04-30 20:46 Stan K

30 Apr 2017 – 01 May 2017 : 1669 1ed Mathematical Manual

1. 2017-04-30 16:18 Jackson McDonald
2. 2017-04-30 17:36 Brad Morris
3. 2017-04-30 17:37 Stan K
4. 2017-04-30 18:31 Frank Reed
5. 2017-04-30 18:43 Brad Morris
6. 2017-04-30 18:49 Brad Morris
7. 2017-04-30 18:55 Bill B
8. 2017-05-01 03:34 Fred Hebard

24 Apr 2017 – 01 May 2017 : No Clock Longitude with Lunars

1. 2017-04-24 19:09 Francis Upchurch
2. 2017-04-24 22:11 John D. Howard
3. 2017-04-25 08:13 Tony Oz
4. 2017-04-26 08:14 Bob Crawley
5. 2017-05-01 08:21 Bob Crawley
6. 2017-05-01 15:49 Francis Upchurch

03 May 2017 – 03 May 2017 : Time without a chronometer, wwv or NTP

1. 2017-05-03 03:29 David C
2. 2017-05-03 04:32 Francis Upchurch

30 Apr 2017 – 03 May 2017 : Re: Bluewater cruising in small boats

1. 2017-04-30 19:34 Tony Oz
2. 2017-05-03 17:48 Tony Oz

07 Apr 2017 – 04 May 2017 : Admiralty Manual of Navigation Vol III

1. 2017-04-07 20:06 Michael Bradley
2. 2017-04-07 21:05 Frank Reed
3. 2017-04-07 21:06 David C
4. 2017-04-07 21:12 Michael Bradley
5. 2017-04-08 03:14 Frank Reed
6. 2017-04-08 04:36 David C
7. 2017-04-10 16:35 Tony Oz
8. 2017-04-11 06:44 Andrés Ruiz
9. 2017-05-04 17:13 Bill Ritchie
10. 2017-05-04 19:15 Gary LaPook
11. 2017-05-04 21:54 David C

04 May 2017 – 04 May 2017 : In The Heart of The Sea (Film)

1. 2017-05-04 20:23 Greg Rudzinski
2. 2017-05-04 22:42 Alan S

05 May 2017 – 05 May 2017 : Air-Navigation Workbook

1. 2017-05-05 01:11 Dave Walden

23 Apr 2017 – 06 May 2017 : A tour of the Great Navigation Centers of the World

1. 2017-04-23 02:49 Doug MacPherson
2. 2017-04-23 05:44 Sean C
3. 2017-04-23 07:57 Alexandre Eremenko
4. 2017-04-23 19:30 Ed Popko
5. 2017-04-24 13:24 Robin Stuart
6. 2017-04-24 18:43 Francis Upchurch
7. 2017-05-05 23:41 Bruce J. Pennino
8. 2017-05-06 13:02 Dave Walden

06 May 2017 – 07 May 2017 : 19th century US Navy

1. 2017-05-06 13:36 Frank Reed
2. 2017-05-06 14:09 Brad Morris
3. 2017-05-06 14:19 Brad Morris
4. 2017-05-06 17:23 Bill Ritchie
5. 2017-05-07 00:13 Don Seltzer

06 May 2017 – 07 May 2017 : Re: The Ping explained

1. 2017-05-06 23:42 Jack Houman
2. 2017-05-07 12:59 Tom Sult
3. 2017-05-07 23:27 Greg Rudzinski

08 May 2017 – 08 May 2017 : A Few Good Boats, by Colligan

1. 2017-05-08 23:23 Alan S

01 May 2017 – 09 May 2017 : Greenwich date and time?

1. 2017-05-01 05:32 Mike Freeman
2. 2017-05-09 05:50 Mike Freeman
3. 2017-05-09 14:32 Bob Goethe
4. 2017-05-09 14:35 Stan K
5. 2017-05-09 14:42 Noell Wilson
6. 2017-05-09 16:00 Brad Morris
7. 2017-05-09 16:29 John D. Howard
8. 2017-05-09 16:53 Frank Reed
9. 2017-05-09 18:16 Mike Freeman

09 May 2017 – 10 May 2017 : Costa Concordia report in English?

1. 2017-05-09 21:45 Frank Reed
2. 2017-05-10 08:43 David Pike

07 May 2017 – 10 May 2017 : Lancaster bomber navigational computer

1. 2017-05-07 12:57 Jackson McDonald
2. 2017-05-08 08:19 David Pike
3. 2017-05-09 08:18 Ronald van Riet
4. 2017-05-10 08:59 David Pike

10 May 2017 – 10 May 2017 : Classes at Mystic Seaport: Lunars and Modern

1. 2017-05-10 16:17 Frank Reed

12 May 2017 – 12 May 2017 : Maybe he meant a cheap sextant??

1. 2017-05-12 00:23 Lu Abel

11 May 2017 – 12 May 2017 : Re: Sextant Repairs

1. 2017-05-11 14:35 Graham Dodd
2. 2017-05-11 15:55 Greg Rudzinski
3. 2017-05-11 15:58 Jackson McDonald
4. 2017-05-11 16:06 Brad Morris
5. 2017-05-11 17:14 Ridge White
6. 2017-05-11 20:25 Alexandre Eremenko
7. 2017-05-12 01:12 Greg Rudzinski
8. 2017-05-12 04:28 Bill Morris
9. 2017-05-12 05:37 Alexandre Eremenko
10. 2017-05-12 06:15 Alexandre Eremenko
11. 2017-05-12 06:19 Alexandre Eremenko

12 May 2017 – 12 May 2017 : A meridian-passage latitude from Jupiter

1. 2017-05-12 07:48 David Pike
2. 2017-05-12 12:25 David Pike
3. 2017-05-12 12:33 Herman Dekker
4. 2017-05-12 14:20 David Pike

14 May 2017 – 14 May 2017 : Talking Countdown Timers

1. 2017-05-14 10:42 David Pike
2. 2017-05-14 13:39 Paul Brewer
3. 2017-05-14 14:47 David Pike

11 May 2017 – 15 May 2017 : Latitude and longitude from a photo

1. 2017-05-11 15:47 William A
2. 2017-05-11 16:14 Greg Rudzinski
3. 2017-05-12 00:38 William A
4. 2017-05-12 01:04 Greg Rudzinski
5. 2017-05-12 01:22 Don Seltzer
6. 2017-05-12 01:56 Greg Rudzinski
7. 2017-05-12 02:09 Greg Rudzinski
8. 2017-05-12 03:26 W F Jones
9. 2017-05-12 06:02 Frank Reed
10. 2017-05-12 17:44 Frank Reed
11. 2017-05-12 19:32 Luc Van den Borre
12. 2017-05-15 15:45 William A

15 May 2017 – 16 May 2017 : Re: Dangerously radioactive navigation instruments

1. 2017-05-15 16:32 Tony Oz
2. 2017-05-16 12:23 Andy Smith

17 May 2017 – 17 May 2017 : A halo-like rainbow round the Sun: some sextant measurements.

1. 2017-05-17 12:04 Tony Oz
2. 2017-05-17 13:42 Frank Reed
3. 2017-05-17 14:13 Tony Oz
4. 2017-05-17 14:40 Frank Reed
5. 2017-05-17 15:47 Brad Morris
6. 2017-05-17 16:19 Frank Reed
7. 2017-05-17 17:01 Robin Stuart

14 May 2017 – 19 May 2017 : Curve sketching freeware

1. 2017-05-14 15:11 David Pike
2. 2017-05-14 19:41 Ron Jones
3. 2017-05-15 04:40 Bill Roberts
4. 2017-05-15 12:49 Robert Bernecky
5. 2017-05-15 15:10 Frank Reed
6. 2017-05-15 17:18 Ron Jones
7. 2017-05-15 19:29 David Pike
8. 2017-05-17 09:15 Andrés Ruiz
9. 2017-05-17 12:39 Wolfgang Hasper
10. 2017-05-19 19:50 Michael Arthur
11. 2017-05-19 21:40 Tom Sult

20 May 2017 – 20 May 2017 : Second hand book shops

1. 2017-05-20 09:35 David C

18 May 2017 – 22 May 2017 : Latitude from two altitudes

1. 2017-05-18 18:44 Frank Reed
2. 2017-05-18 19:50 Tony Oz
3. 2017-05-18 20:22 Ron Jones
4. 2017-05-18 22:57 Brad Morris
5. 2017-05-19 08:37 Bill Ritchie
6. 2017-05-19 13:33 Robin Stuart
7. 2017-05-19 16:28 Greg Rudzinski
8. 2017-05-19 20:50 Lars Bergman
9. 2017-05-22 13:56 Joel Silverberg
10. 2017-05-22 23:12 Dave Walden

23 May 2017 – 23 May 2017 : John Fulton's Grand Orrery

1. 2017-05-23 16:35 Jackson McDonald
2. 2017-05-23 16:54 Brad Morris

16 May 2017 – 24 May 2017 : Position errors for 2- and 3-body observations

1. 2017-05-16 19:44 Geoffrey Butt
2. 2017-05-17 00:46 Randall Morrow
3. 2017-05-17 03:48 Sean C
4. 2017-05-17 09:40 David Pike
5. 2017-05-17 10:32 Bill Lionheart
6. 2017-05-21 16:53 Robert VanderPol II
7. 2017-05-21 18:32 Lu Abel
8. 2017-05-24 16:57 Greg Rudzinski

18 Apr 2017 – 26 May 2017 : Fata Morgan images set me thinking

1. 2017-04-18 01:35 Mark Coady
2. 2017-04-18 07:39 Tony Oz
3. 2017-04-19 02:12 Alan S
4. 2017-04-19 12:24 Jim Hickey
5. 2017-04-20 15:27 Örjan Sandström
6. 2017-04-20 16:24 Brad Morris
7. 2017-04-20 18:07 Bob Goethe
8. 2017-04-22 23:29 Frank Reed
9. 2017-05-15 17:04 Tony Oz
10. 2017-05-25 17:27 Mark Coady
11. 2017-05-25 18:12 Frank Reed
12. 2017-05-26 01:24 Brad Morris

24 May 2017 – 27 May 2017 : Is the focus on the mirror or on the star

1. 2017-05-24 04:39 Randall Morrow
2. 2017-05-24 15:53 Greg Rudzinski
3. 2017-05-24 16:26 Frank Reed
4. 2017-05-24 23:30 Brad Morris
5. 2017-05-25 06:42 Tony Oz
6. 2017-05-25 11:46 Luc Van den Borre
7. 2017-05-26 07:01 Peter Monta
8. 2017-05-26 07:10 Peter Monta
9. 2017-05-26 14:50 Randall Morrow
10. 2017-05-26 22:56 Frank Reed
11. 2017-05-27 01:43 Greg Rudzinski

30 May 2017 – 30 May 2017 : C-SPAN 3 appearance the Saturday 6/3 at 2:00 pm EDT

1. 2017-05-30 17:34 Richard Easton

24 May 2017 – 30 May 2017 : WWII US Navy Ball Recording Sextant

1. 2017-05-24 21:47 Chris Caswell
2. 2017-05-24 23:47 Robert Eno
3. 2017-05-25 00:05 Chris Caswell
4. 2017-05-28 21:51 Gary LaPook
5. 2017-05-30 22:59 Chris Caswell

02 Jun 2017 – 03 Jun 2017 : Two definitions of LHA

1. 2017-06-02 17:01 Mark Coady
2. 2017-06-02 18:28 John D. Howard
3. 2017-06-02 20:12 David Pike
4. 2017-06-02 20:20 Mark Coady
5. 2017-06-03 05:59 Frank Reed
6. 2017-06-03 09:43 David Pike

02 Jun 2017 – 04 Jun 2017 : Dresden sextant

1. 2017-06-02 17:04 Jackson McDonald
2. 2017-06-02 19:15 Bill Morris
3. 2017-06-03 01:22 Noell Wilson
4. 2017-06-03 08:06 Jackson McDonald
5. 2017-06-03 08:20 Stephen N.G. Davies
6. 2017-06-03 10:09 Bill Lionheart
7. 2017-06-03 14:53 Noell Wilson
8. 2017-06-04 01:03 Paul Saffo

31 May 2017 – 04 Jun 2017 : An "integrating averager": how does it work?

1. 2017-05-31 17:57 Tony Oz
2. 2017-05-31 19:07 Bill Morris
3. 2017-06-01 10:50 Tony Oz
4. 2017-06-02 02:20 Bill Morris
5. 2017-06-02 09:06 Tony Oz
6. 2017-06-04 00:22 Gary LaPook
7. 2017-06-04 11:57 Tony Oz

05 Jun 2017 – 05 Jun 2017 : SEXTANT launched to the International Space Station

1. 2017-06-05 05:19 Fred Hebard

05 Jun 2017 – 06 Jun 2017 : Ageton by Log SEC Log CSC

1. 2017-06-05 00:53 Greg Rudzinski
2. 2017-06-06 17:08 Greg Rudzinski

05 Jun 2017 – 06 Jun 2017 : Numerical Method for a Noon Fix

1. 2017-06-05 17:12 Ron Jones
2. 2017-06-06 09:53 Andrés Ruiz
3. 2017-06-06 17:45 Robin Jouan
4. 2017-06-06 18:18 Robin Stuart

04 Jun 2017 – 06 Jun 2017 : Re: Dresden sextant - lets commission a Navlist instrument!

1. 2017-06-04 16:32 Paul Saffo
2. 2017-06-05 02:36 Brad Morris
3. 2017-06-05 12:08 Noell Wilson
4. 2017-06-05 13:16 Bruce J. Pennino
5. 2017-06-06 16:17 Paul Saffo
6. 2017-06-06 18:25 Frank Reed

06 Jun 2017 – 07 Jun 2017 : Master's and Mate's exams

1. 2017-06-06 04:22 David C
2. 2017-06-06 20:05 Paul Bedel
3. 2017-06-07 07:00 David C

07 Jun 2017 – 08 Jun 2017 : Wrinkles in Practical navigation maps

1. 2017-06-07 01:43 Mark Coady
2. 2017-06-07 07:45 David C
3. 2017-06-07 09:02 Bob Crawley
4. 2017-06-07 16:57 Bruce J. Pennino
5. 2017-06-07 18:43 Brad Morris
6. 2017-06-08 00:54 Bill Roberts

01 Jun 2017 – 08 Jun 2017 : Example sights very near the North Pole

1. 2017-06-01 20:51 Frank Reed
2. 2017-06-05 09:44 Lars Bergman
3. 2017-06-05 16:42 Robin Jouan
4. 2017-06-05 19:36 Lars Bergman
5. 2017-06-06 07:48 Robin Jouan
6. 2017-06-06 08:48 Andrés Ruiz
7. 2017-06-06 16:35 Herman Dekker
8. 2017-06-06 20:04 Herman Dekker
9. 2017-06-06 20:58 Gary LaPook
10. 2017-06-06 21:05 Gary LaPook
11. 2017-06-07 09:13 Robin Jouan
12. 2017-06-08 06:33 Andrés Ruiz

08 Jun 2017 – 08 Jun 2017 : Beautiful Jupiter Fly-by

1. 2017-06-08 11:57 Ed Popko
2. 2017-06-08 16:56 Francis Upchurch
3. 2017-06-08 19:37 Frank Reed

09 Jun 2017 – 09 Jun 2017 : Android App for celestial navigation, free beta

1. 2017-06-09 21:22 Pete Solon Palmer

07 Jun 2017 – 09 Jun 2017 : Failing to Use All the Navigational Inputs At Your Disposal

1. 2017-06-07 23:47 Bob Goethe
2. 2017-06-08 00:56 Frank Reed
3. 2017-06-08 06:12 Geoffrey Kolbe
4. 2017-06-08 12:20 Tom Sult
5. 2017-06-09 07:49 Gary LaPook
6. 2017-06-09 21:40 Bill Ritchie
7. 2017-06-09 23:01 Frank Reed

10 Jun 2017 – 10 Jun 2017 : Marion-Bermuda Sailing event (with Celestial)

1. 2017-06-10 14:42 Ed Popko
2. 2017-06-10 21:43 Stan K

12 Jun 2017 – 12 Jun 2017 : Modern Celestial, June 17-18, Mystic Seaport

1. 2017-06-12 02:33 Frank Reed

10 Jun 2017 – 12 Jun 2017 : Astron version 1.14 release

1. 2017-06-10 19:24 Peter Hakel
2. 2017-06-11 09:38 Örjan Sandström
3. 2017-06-11 22:00 Bill Ritchie
4. 2017-06-12 00:41 Stan K
5. 2017-06-12 13:49 Bill Ritchie
6. 2017-06-12 17:01 Örjan Sandström

13 Jun 2017 – 13 Jun 2017 : Best-of-Breed Navigational Resources

1. 2017-06-13 20:47 Bob Goethe

14 Jun 2017 – 14 Jun 2017 : World Sailing Routes

1. 2017-06-14 20:31 Bob Goethe

15 Jun 2017 – 15 Jun 2017 : Re: Point Honda

1. 2017-06-15 04:25 Alan S
2. 2017-06-15 06:17 Gary LaPook

15 Jun 2017 – 15 Jun 2017 : NOAA Tides & Currents

1. 2017-06-15 08:49 Andrés Ruiz

15 Jun 2017 – 15 Jun 2017 : Local Apparent Noon and North-South direction blunder

1. 2017-06-15 12:00 Tony Oz
2. 2017-06-15 18:28 Frank Reed
3. 2017-06-15 20:08 Tony Oz

15 Jun 2017 – 15 Jun 2017 : Call for Papers/Presentations: Navigation Symposium, Mystic Seaport, Nov.3-5,2017

1. 2017-06-15 20:43 Frank Reed

15 Jun 2017 – 16 Jun 2017 : StarTalk TV: celestial navigation on National Geographic

1. 2017-06-15 19:23 Frank Reed
2. 2017-06-16 01:52 Tom Sult

16 Jun 2017 – 16 Jun 2017 : Re: Circular "Navigational Computer"

1. 2017-06-16 12:43 Robert Criss

13 Jun 2017 – 16 Jun 2017 : MK IXA sextant

1. 2017-06-13 23:08 Chris Caswell
2. 2017-06-14 01:02 Greg Rudzinski
3. 2017-06-14 10:22 Chris Caswell
4. 2017-06-14 19:07 Noell Wilson
5. 2017-06-15 06:09 David Pike
6. 2017-06-15 16:46 Ken Gebhart
7. 2017-06-15 19:02 David Pike
8. 2017-06-15 21:32 Chris Caswell
9. 2017-06-15 21:42 Chris Caswell
10. 2017-06-15 21:44 Chris Caswell
11. 2017-06-16 01:49 Ken Gebhart
12. 2017-06-16 03:35 David C
13. 2017-06-16 04:36 Bill Morris
14. 2017-06-16 12:38 Paul Brewer
15. 2017-06-16 16:10 David Pike
16. 2017-06-16 16:20 David Pike

13 Jun 2017 – 16 Jun 2017 : American Practical Navigator, Bowditch 2017

1. 2017-06-13 02:44 Frank Reed
2. 2017-06-13 03:40 Bob Goethe
3. 2017-06-13 11:15 Ed Popko
4. 2017-06-13 13:27 Robin Stuart
5. 2017-06-13 16:50 Frank Reed
6. 2017-06-13 19:08 Bob Goethe
7. 2017-06-13 19:58 Pete Solon Palmer
8. 2017-06-14 02:50 Mark Coady
9. 2017-06-14 07:25 Tony Oz
10. 2017-06-14 18:08 Greg Rudzinski
11. 2017-06-14 18:55 Robin Stuart
12. 2017-06-14 19:27 David C
13. 2017-06-14 19:33 Bob Goethe
14. 2017-06-15 15:08 Tony Oz
15. 2017-06-15 19:22 Lu Abel
16. 2017-06-15 20:25 Frank Reed
17. 2017-06-16 21:30 Stan K

17 Jun 2017 – 18 Jun 2017 : Hokulea Finishes 3 Yr Round the World Cruise

1. 2017-06-17 23:50 Scott Owen
2. 2017-06-18 02:59 Frank Reed
3. 2017-06-18 04:15 Frank Reed

09 Jun 2017 – 20 Jun 2017 : Error ellipse proportions

1. 2017-06-09 01:06 Frank Reed
2. 2017-06-09 09:07 Andrés Ruiz
3. 2017-06-09 12:07 Andrés Ruiz
4. 2017-06-09 23:15 Frank Reed
5. 2017-06-10 21:40 Bob Goethe
6. 2017-06-11 10:59 David Pike
7. 2017-06-11 16:41 Tom Sult
8. 2017-06-11 18:34 Frank Reed
9. 2017-06-11 19:26 Frank Reed
10. 2017-06-11 21:01 Tom Sult
11. 2017-06-12 09:08 Robin Jouan
12. 2017-06-12 12:28 Andrés Ruiz
13. 2017-06-12 14:56 Greg Rudzinski
14. 2017-06-16 18:55 Mark Coady
15. 2017-06-17 00:20 Greg Rudzinski
16. 2017-06-20 10:58 Mark Coady

20 Jun 2017 – 20 Jun 2017 : Marion Bermuda Race CN

1. 2017-06-20 16:26 Greg Rudzinski

21 Jun 2017 – 21 Jun 2017 : Sun returning to SouthernHhemisphere

1. 2017-06-21 06:00 David C
2. 2017-06-21 09:51 Frank Atkins

22 Jun 2017 – 22 Jun 2017 : Re: Traditional navigation by slide rule

1. 2017-06-22 18:21 Greg Rudzinski

23 Jun 2017 – 23 Jun 2017 : EBay Freiberger Sextant

1. 2017-06-23 09:50 Andy Smith

23 Jun 2017 – 23 Jun 2017 : Register for Navigation Symposium, Mystic Seaport, Nov.3-5,2017

1. 2017-06-23 18:41 Frank Reed
2. 2017-06-23 20:59 Stan K

24 Jun 2017 – 24 Jun 2017 : AIS on Navy ships

1. 2017-06-24 16:37 Lu Abel
2. 2017-06-24 19:16 Frank Reed

22 Jun 2017 – 26 Jun 2017 : Bendix A7 octant

1. 2017-06-22 22:17 Chris Caswell
2. 2017-06-23 23:25 Gary LaPook
3. 2017-06-24 01:55 Gary LaPook
4. 2017-06-24 21:12 Chris Caswell
5. 2017-06-26 10:40 Tony Oz

17 Jun 2017 – 27 Jun 2017 : USS Fitzgerald collision with container ship

1. 2017-06-17 00:25 Frank Reed
2. 2017-06-17 01:27 Frank Reed
3. 2017-06-17 01:52 Brad Morris
4. 2017-06-17 02:14 Doug MacPherson
5. 2017-06-17 06:31 Frank Reed
6. 2017-06-17 07:27 Stephen N.G. Davies
7. 2017-06-17 08:25 Bill Lionheart
8. 2017-06-17 23:03 Bill B
9. 2017-06-18 02:32 Frank Reed
10. 2017-06-18 15:47 John D. Howard
11. 2017-06-18 17:23 Lu Abel
12. 2017-06-18 18:41 Bill B
13. 2017-06-18 18:54 Bill B
14. 2017-06-18 19:12 Bill B
15. 2017-06-18 20:25 John D. Howard
16. 2017-06-19 04:23 Bruce J. Pennino
17. 2017-06-19 05:48 Stephen N.G. Davies
18. 2017-06-19 18:40 Geoffrey Kolbe
19. 2017-06-19 20:00 Frank Reed
20. 2017-06-19 20:17 Hewitt Schlereth
21. 2017-06-19 22:16 David Pike
22. 2017-06-19 22:49 David Pike
23. 2017-06-19 23:38 Lu Abel
24. 2017-06-20 01:38 Frank Reed
25. 2017-06-20 02:56 Don Seltzer
26. 2017-06-20 04:55 Sean C
27. 2017-06-20 16:50 Gary LaPook
28. 2017-06-20 17:06 Gary LaPook
29. 2017-06-20 20:01 Bill B
30. 2017-06-20 22:09 Greg Rudzinski
31. 2017-06-20 22:38 Bob Goethe
32. 2017-06-20 23:10 Gary LaPook
33. 2017-06-20 23:39 Bob Goethe
34. 2017-06-20 23:51 Frank Reed
35. 2017-06-21 04:25 Frank Reed
36. 2017-06-23 23:30 Bill B
37. 2017-06-24 04:01 Gary LaPook
38. 2017-06-24 07:16 Frank Reed
39. 2017-06-24 16:30 Lu Abel
40. 2017-06-24 18:46 Frank Reed
41. 2017-06-24 21:44 Frank Reed
42. 2017-06-25 06:16 Geoffrey Kolbe
43. 2017-06-25 16:16 Gary LaPook
44. 2017-06-25 22:47 Brad Morris
45. 2017-06-25 23:59 Alan S
46. 2017-06-26 02:45 Noell Wilson
47. 2017-06-26 02:56 David C
48. 2017-06-26 05:46 Geoffrey Kolbe
49. 2017-06-26 07:51 Stephen N.G. Davies
50. 2017-06-26 10:04 Sean C
51. 2017-06-26 17:55 Gary LaPook
52. 2017-06-26 19:43 Frank Reed
53. 2017-06-26 19:48 Gary LaPook
54. 2017-06-26 20:18 Don Seltzer
55. 2017-06-26 20:49 Frank Reed
56. 2017-06-27 06:11 Geoffrey Kolbe
57. 2017-06-27 06:31 Stephen N.G. Davies

27 Jun 2017 – 27 Jun 2017 : Lost in the South Atlantic

1. 2017-06-27 00:15 Frank Reed
2. 2017-06-27 00:31 Greg R_
3. 2017-06-27 01:27 Stan K
4. 2017-06-27 02:28 Greg Rudzinski
5. 2017-06-27 02:35 Don Seltzer
6. 2017-06-27 04:19 John D. Howard
7. 2017-06-27 05:49 John D. Howard
8. 2017-06-27 07:58 Stan K

27 Jun 2017 – 29 Jun 2017 : AIS and Warships

1. 2017-06-27 21:07 David Pike
2. 2017-06-28 02:12 Stephen N.G. Davies
3. 2017-06-28 06:56 David Pike
4. 2017-06-28 09:03 Stephen N.G. Davies
5. 2017-06-28 19:51 David Pike
6. 2017-06-29 01:07 Stephen N.G. Davies

29 Jun 2017 – 29 Jun 2017 : Re: Cape Belsham and Point Wild relocated on Chart 29104

1. 2017-06-29 16:43 Robin Stuart

01 Jul 2017 – 01 Jul 2017 : From Ptolemy to GPS, the Brief History of Maps Innovation Smithsonian

1. 2017-07-01 11:29 Jackson McDonald

28 Jun 2017 – 01 Jul 2017 : Triangle of velocities solver?

1. 2017-06-28 08:28 David Pike
2. 2017-06-29 04:05 Gary LaPook
3. 2017-07-01 19:25 David Pike

01 Jul 2017 – 02 Jul 2017 : Fairchild Model A-10

1. 2017-07-01 14:07 Rick Feldmann
2. 2017-07-02 00:11 Gary LaPook

02 Jul 2017 – 02 Jul 2017 : ADMIN: duplicate email copy of message

1. 2017-07-02 20:19 Frank Reed

02 Jul 2017 – 03 Jul 2017 : Re: Fairchild A-10

1. 2017-07-02 13:34 Rick Feldmann
2. 2017-07-02 18:52 Gary LaPook
3. 2017-07-02 20:43 David Pike
4. 2017-07-02 22:03 Gary LaPook
5. 2017-07-03 06:56 David Pike

30 Jun 2017 – 03 Jul 2017 : Re: 3 sights SR example - side remark

1. 2017-06-30 08:15 Herbert Prinz
2. 2017-07-03 09:44 Andrés Ruiz

03 Jul 2017 – 03 Jul 2017 : Villarceau - Nouvelle navigation astronomique

1. 2017-07-03 06:37 Andrés Ruiz
2. 2017-07-03 11:18 Robin Jouan

23 Jun 2017 – 05 Jul 2017 : 3 sights SR example

1. 2017-06-23 10:37 Andrés Ruiz
2. 2017-06-23 18:13 Stan K
3. 2017-06-23 18:57 Andrés Ruiz
4. 2017-06-23 20:11 Robin Jouan
5. 2017-06-23 20:46 Greg Rudzinski
6. 2017-06-23 20:47 David Pike
7. 2017-06-23 21:54 John D. Howard
8. 2017-06-23 23:49 Greg Rudzinski
9. 2017-06-24 00:17 Peter Hakel
10. 2017-06-27 16:13 Ron Jones
11. 2017-06-27 17:28 Pete Solon Palmer
12. 2017-06-27 18:40 Frank Reed
13. 2017-06-27 19:56 David Pike
14. 2017-06-27 23:24 Pete Solon Palmer
15. 2017-06-27 23:58 Noell Wilson
16. 2017-06-28 07:58 Andrés Ruiz
17. 2017-06-28 08:34 Andrés Ruiz
18. 2017-06-28 18:52 Frank Reed
19. 2017-06-28 20:44 Andrés Ruiz
20. 2017-06-28 20:53 Greg Rudzinski
21. 2017-06-28 21:52 David Pike
22. 2017-06-29 01:19 Noell Wilson
23. 2017-06-29 09:24 Robin Jouan
24. 2017-06-30 03:06 Herbert Prinz
25. 2017-06-30 08:21 Andrés Ruiz
26. 2017-06-30 08:42 Andrés Ruiz
27. 2017-06-30 09:10 Robin Jouan
28. 2017-06-30 10:16 David Pike
29. 2017-06-30 13:53 David Pike
30. 2017-06-30 17:43 Herbert Prinz
31. 2017-07-01 11:43 Robin Jouan
32. 2017-07-02 18:32 Robin Jouan
33. 2017-07-03 10:03 Andrés Ruiz
34. 2017-07-03 10:12 Andrés Ruiz
35. 2017-07-03 17:32 Greg Rudzinski
36. 2017-07-03 17:41 Robin Jouan
37. 2017-07-04 06:35 Andrés Ruiz
38. 2017-07-04 06:43 Andrés Ruiz
39. 2017-07-04 17:04 Robin Jouan
40. 2017-07-05 06:23 Andrés Ruiz

03 Jul 2017 – 06 Jul 2017 : Re: Fairchild A-10A in practice

1. 2017-07-03 13:50 Noell Wilson
2. 2017-07-03 22:24 Bill Morris
3. 2017-07-04 17:42 Ken Gebhart
4. 2017-07-05 22:55 Gary LaPook
5. 2017-07-06 06:53 David Pike
6. 2017-07-06 14:12 David Pike
7. 2017-07-06 15:13 David Pike
8. 2017-07-06 15:29 Noell Wilson
9. 2017-07-06 15:58 Noell Wilson
10. 2017-07-06 17:08 David Pike
11. 2017-07-06 20:47 Gary LaPook
12. 2017-07-06 21:28 Gary LaPook
13. 2017-07-06 21:50 Gary LaPook
14. 2017-07-06 22:49 Gary LaPook

08 Jul 2017 – 08 Jul 2017 : US Navy likely to bar other agencies from interviewing USS Fitzgerald crew

1. 2017-07-08 22:28 Lu Abel

09 Jul 2017 – 09 Jul 2017 : Tensioning shades on a Plath

1. 2017-07-09 12:45 Carl Herzog
2. 2017-07-09 19:32 Brad Morris
3. 2017-07-09 20:29 David C

10 Jul 2017 – 10 Jul 2017 : Another giant Moon

1. 2017-07-10 15:34 David Pike
2. 2017-07-10 18:25 Frank Reed
3. 2017-07-10 18:32 Herman Dekker
4. 2017-07-10 21:34 David Pike

11 Jul 2017 – 11 Jul 2017 : Navigation book review in New York Times (1895)

1. 2017-07-11 05:38 Paul Hirose

11 Jul 2017 – 11 Jul 2017 : NYTimes.com: Searching for Amelia Earhart

1. 2017-07-11 10:53 Jackson McDonald

02 Jul 2017 – 12 Jul 2017 : Re: Another round on the fate of Amelia Earhart in today's news

1. 2017-07-02 21:18 Don Seltzer
2. 2017-07-02 23:39 Brad Morris
3. 2017-07-03 00:10 Tom Sult
4. 2017-07-03 02:24 Greg R_
5. 2017-07-03 08:52 Tony Oz
6. 2017-07-06 17:38 Gary LaPook
7. 2017-07-06 19:17 Stephen Wawrzyniec
8. 2017-07-07 02:57 David C
9. 2017-07-07 13:21 Don Seltzer
10. 2017-07-07 15:37 Don Seltzer
11. 2017-07-07 21:41 Gary LaPook
12. 2017-07-07 23:19 Mike Cino
13. 2017-07-08 00:01 Frank Reed
14. 2017-07-08 00:05 Ian Vaughn
15. 2017-07-08 00:33 Lu Abel
16. 2017-07-08 06:37 Gary LaPook
17. 2017-07-08 06:45 Gary LaPook
18. 2017-07-10 23:23 Gary LaPook
19. 2017-07-11 03:40 Brad Morris
20. 2017-07-11 05:28 Gary LaPook
21. 2017-07-11 05:29 Gary LaPook
22. 2017-07-11 10:45 Brad Morris
23. 2017-07-11 14:17 Mike Mayer
24. 2017-07-12 01:53 Gary LaPook

10 Jul 2017 – 13 Jul 2017 : Are we all doing our math correctly?

1. 2017-07-10 21:11 Gary LaPook
2. 2017-07-10 23:21 Gary LaPook
3. 2017-07-11 00:44 Lu Abel
4. 2017-07-11 04:25 Chris Post
5. 2017-07-11 04:30 Bill Roberts
6. 2017-07-11 10:59 Sean C
7. 2017-07-11 14:26 Frank Reed
8. 2017-07-11 15:55 Gary LaPook
9. 2017-07-11 17:47 Bill B
10. 2017-07-11 22:16 Hewitt Schlereth
11. 2017-07-12 01:31 Sean C
12. 2017-07-12 07:32 Herman Dekker
13. 2017-07-12 11:10 Tony Oz
14. 2017-07-12 16:24 Lu Abel
15. 2017-07-13 04:49 Paul Hirose

12 Jul 2017 – 16 Jul 2017 : Great Circles and Rhumb Lines on the Complex Plane

1. 2017-07-12 14:15 Andrés Ruiz
2. 2017-07-15 10:11 David Pike
3. 2017-07-16 12:23 Robin Stuart

06 Jul 2017 – 17 Jul 2017 : Re: Which calculator to use for "arctan(tan(269))"?

1. 2017-07-06 08:14 Tony Oz
2. 2017-07-06 14:28 Robin Stuart
3. 2017-07-06 14:50 Tony Oz
4. 2017-07-13 18:48 Tony Oz
5. 2017-07-14 15:24 Robin Stuart
6. 2017-07-14 16:03 Tony Oz
7. 2017-07-16 20:19 David C
8. 2017-07-17 01:56 Pete Solon Palmer
9. 2017-07-17 08:31 Tony Oz
10. 2017-07-17 14:22 D Maracle
11. 2017-07-17 16:33 Pete Solon Palmer

17 Jul 2017 – 18 Jul 2017 : Re: Equation of Time Simplified?

1. 2017-07-17 10:28 Alejandro Muñoz
2. 2017-07-17 15:54 Greg Rudzinski
3. 2017-07-17 17:46 Alejandro Muñoz
4. 2017-07-18 13:49 Robert Bernecky
5. 2017-07-18 16:13 Alejandro Muñoz

19 Jul 2017 – 19 Jul 2017 : Recording time

1. 2017-07-19 16:47 Mark Knudsen

11 Jul 2017 – 19 Jul 2017 : Sextant manipulation

1. 2017-07-11 20:42 Mark Knudsen
2. 2017-07-12 03:36 Ken Gebhart
3. 2017-07-12 12:52 Tom Sult
4. 2017-07-14 22:56 Bill Morris
5. 2017-07-16 17:34 Mark Knudsen
6. 2017-07-16 17:42 Mark Knudsen
7. 2017-07-19 19:22 Mark Knudsen

19 Jul 2017 – 20 Jul 2017 : A sudden plot twist: from CN to cryptograhpy. :)

1. 2017-07-19 11:06 Tony Oz
2. 2017-07-19 20:46 David Fleming
3. 2017-07-20 00:32 Robert VanderPol II
4. 2017-07-20 02:52 Ron Jones
5. 2017-07-20 08:13 Bill Lionheart

20 Jul 2017 – 20 Jul 2017 : 200mm DSLR Day Venus Lunar

1. 2017-07-20 20:01 Greg Rudzinski

20 Jul 2017 – 20 Jul 2017 : The Van of Eratosthenes

1. 2017-07-20 20:14 Frank Reed
2. 2017-07-20 21:33 Greg Rudzinski

20 Jul 2017 – 20 Jul 2017 : Anti-crepuscular rays for azimuth

1. 2017-07-20 22:33 Frank Reed

21 Jul 2017 – 23 Jul 2017 : Longitude by noon sight

1. 2017-07-21 13:40 David Shoemaker
2. 2017-07-21 17:24 Greg Rudzinski
3. 2017-07-21 17:40 Bob Goethe
4. 2017-07-21 18:49 John D. Howard
5. 2017-07-21 19:33 Bill B
6. 2017-07-22 23:08 Ron Jones
7. 2017-07-23 00:10 Frank Reed
8. 2017-07-23 18:35 Stan K

22 Jul 2017 – 24 Jul 2017 : US Official: USS Fitzgerald Crew Likely at Fault

1. 2017-07-22 10:14 Jackson McDonald
2. 2017-07-22 21:05 Bill B
3. 2017-07-23 00:20 Michael Martin
4. 2017-07-23 18:59 Bill B
5. 2017-07-23 20:12 Bill B
6. 2017-07-24 02:49 David C

23 Jul 2017 – 24 Jul 2017 : New false horizons? Just watch satellites...

1. 2017-07-23 02:16 Frank Reed
2. 2017-07-23 05:48 Bob Goethe
3. 2017-07-23 05:52 Paul Dolkas
4. 2017-07-23 13:50 Robin Jouan
5. 2017-07-23 18:17 Frank Reed
6. 2017-07-24 07:32 Robin Jouan

24 Jul 2017 – 24 Jul 2017 : November Navigation conference, IMPORTANT reminder

1. 2017-07-24 19:31 Frank Reed
2. 2017-07-24 20:48 Jackson McDonald

17 Jul 2017 – 25 Jul 2017 : New ways to create false horizons?

1. 2017-07-17 17:10 Jan Jaap Maes
2. 2017-07-18 17:53 Greg Rudzinski
3. 2017-07-19 00:05 Pete Solon Palmer
4. 2017-07-19 07:36 Mark Knudsen
5. 2017-07-19 13:34 Noell Wilson
6. 2017-07-19 22:49 Paul Dolkas
7. 2017-07-20 21:53 Pete Solon Palmer
8. 2017-07-21 00:05 Paul Dolkas
9. 2017-07-21 03:00 John D. Howard
10. 2017-07-21 14:35 Don Seltzer
11. 2017-07-21 21:23 Bill B
12. 2017-07-21 21:32 Pete Solon Palmer
13. 2017-07-21 21:39 Pete Solon Palmer
14. 2017-07-21 22:13 John D. Howard
15. 2017-07-21 22:54 Paul Dolkas
16. 2017-07-21 23:28 Pete Solon Palmer
17. 2017-07-22 00:11 Bill B
18. 2017-07-22 14:11 Don Seltzer
19. 2017-07-22 15:57 John D. Howard
20. 2017-07-23 01:12 Pete Solon Palmer
21. 2017-07-23 18:15 Don Seltzer
22. 2017-07-24 00:45 Brad Morris
23. 2017-07-24 01:45 Brad Morris
24. 2017-07-24 02:13 Don Seltzer
25. 2017-07-24 08:44 Jan Jaap Maes
26. 2017-07-24 16:17 Mark Knudsen
27. 2017-07-24 16:31 John D. Howard
28. 2017-07-24 19:55 Paul Dolkas
29. 2017-07-25 01:43 Pete Solon Palmer

21 Jul 2017 – 25 Jul 2017 : What about this new book?

1. 2017-07-21 07:12 Andrés Ruiz
2. 2017-07-21 13:53 Bob Goethe
3. 2017-07-22 04:12 David C
4. 2017-07-25 08:14 Andrés Ruiz

06 Jul 2017 – 25 Jul 2017 : Things to take on a container ship voyage

1. 2017-07-06 21:11 David Smith
2. 2017-07-07 08:34 Tony Oz
3. 2017-07-07 14:40 Dave Walden
4. 2017-07-07 14:51 Greg Rudzinski
5. 2017-07-07 19:16 Alan S
6. 2017-07-09 03:14 David Smith
7. 2017-07-09 04:24 David Smith
8. 2017-07-09 16:51 Greg Rudzinski
9. 2017-07-09 20:12 Gary LaPook
10. 2017-07-09 20:56 Greg Rudzinski
11. 2017-07-09 22:31 David Smith
12. 2017-07-25 09:22 Andrés Ruiz

24 Jul 2017 – 25 Jul 2017 : Do stars have fingerprints?

1. 2017-07-24 07:40 David Pike
2. 2017-07-24 12:51 Chris Willmes
3. 2017-07-24 14:44 Greg Rudzinski
4. 2017-07-24 17:16 Posth P
5. 2017-07-24 17:57 Frank Reed
6. 2017-07-24 21:50 Ron Jones
7. 2017-07-25 04:04 Sean C
8. 2017-07-25 09:23 Robin Jouan
9. 2017-07-25 13:17 Tom Sult
10. 2017-07-25 18:53 Bill B
11. 2017-07-25 20:07 Paul Dolkas

25 Jul 2017 – 25 Jul 2017 : Left-handed Coutinho sextant

1. 2017-07-25 01:19 Paul Saffo
2. 2017-07-25 01:54 Brad Morris
3. 2017-07-25 03:09 Alan S
4. 2017-07-25 03:15 Alan S
5. 2017-07-25 05:53 Brian Walton
6. 2017-07-25 06:56 David Pike
7. 2017-07-25 18:56 Paul Dolkas
8. 2017-07-25 21:07 Mark Knudsen

26 Jul 2017 – 26 Jul 2017 : Re: Kollsman periscopic bubble sextant

1. 2017-07-26 02:24 Dick Olds

24 Jul 2017 – 27 Jul 2017 : Measurements

1. 2017-07-24 02:17 Mark Knudsen
2. 2017-07-24 02:46 Brad Morris
3. 2017-07-25 11:19 Tony Oz
4. 2017-07-25 16:39 John D. Howard
5. 2017-07-25 16:40 Lu Abel
6. 2017-07-25 16:58 John D. Howard
7. 2017-07-25 17:35 Brad Morris
8. 2017-07-26 10:48 Tony Oz
9. 2017-07-26 17:43 John D. Howard
10. 2017-07-27 01:38 Brad Morris
11. 2017-07-27 07:52 Tony Oz
12. 2017-07-27 19:10 David Shoemaker

28 Jul 2017 – 28 Jul 2017 : Sexagesimal conversion

1. 2017-07-28 04:03 Paul Hirose

25 Jul 2017 – 29 Jul 2017 : Re: SS Warrimoo

1. 2017-07-25 20:39 Don Seltzer
2. 2017-07-25 21:53 Lu Abel
3. 2017-07-26 12:53 John D. Howard
4. 2017-07-26 13:48 Don Seltzer
5. 2017-07-27 07:50 Tony Oz
6. 2017-07-27 21:43 Frank Reed
7. 2017-07-27 22:17 Frank Reed
8. 2017-07-28 01:40 Don Seltzer
9. 2017-07-28 21:27 Don Seltzer
10. 2017-07-28 22:40 Frank Reed
11. 2017-07-29 13:56 Don Seltzer

29 Jul 2017 – 29 Jul 2017 : My local time Vs UTC

1. 2017-07-29 04:00 Steve E. Bryant
2. 2017-07-29 13:12 Tom Sult
3. 2017-07-29 14:23 Sean C
4. 2017-07-29 17:35 John D. Howard

27 Jul 2017 – 30 Jul 2017 : Miracle on the Hudson

1. 2017-07-27 22:16 Bill B
2. 2017-07-28 00:33 Gary LaPook
3. 2017-07-28 13:41 David Pike
4. 2017-07-28 20:36 Herbert Prinz
5. 2017-07-28 22:43 David Pike
6. 2017-07-28 22:59 Robert VanderPol II
7. 2017-07-29 00:12 Bill B
8. 2017-07-30 08:53 Gary LaPook
9. 2017-07-30 08:56 Gary LaPook

30 Jul 2017 – 30 Jul 2017 : Re: horizon marks using a level

1. 2017-07-30 00:54 Chris Caswell
2. 2017-07-30 02:03 John D. Howard
3. 2017-07-30 02:07 Frank Reed
4. 2017-07-30 07:38 Peter Monta
5. 2017-07-30 16:30 Chris Caswell

29 Jul 2017 – 30 Jul 2017 : Navagation indland

1. 2017-07-29 02:32 Mark Knudsen
2. 2017-07-29 13:22 Tom Sult
3. 2017-07-29 17:53 John D. Howard
4. 2017-07-29 22:41 Tom Sult
5. 2017-07-30 17:23 David Shoemaker

30 Jul 2017 – 30 Jul 2017 : Circular sextant?

1. 2017-07-30 04:14 Bill Lionheart
2. 2017-07-30 06:50 Peter Monta
3. 2017-07-30 18:04 Tom Sult
4. 2017-07-30 19:58 Brad Morris
5. 2017-07-30 21:36 Frank Reed

31 Jul 2017 – 31 Jul 2017 : Equinoxes: when Lon == 0° (or 180° ) but not when Dec == 0°?

1. 2017-07-31 11:13 Tony Oz

29 Jul 2017 – 31 Jul 2017 : USNO Data

1. 2017-07-29 20:58 Randall Morrow
2. 2017-07-29 22:05 Ed Popko
3. 2017-07-31 12:20 Örjan Sandström
4. 2017-07-31 12:20 Dave Walden

01 Aug 2017 – 01 Aug 2017 : Chichester's Notebooks

1. 2017-08-01 03:57 David C
2. 2017-08-01 16:35 Bob Goethe
3. 2017-08-01 19:06 Bill B

02 Aug 2017 – 02 Aug 2017 : Re: Ode to Celestial Navigation - set it to music!

1. 2017-08-02 01:34 Paul Saffo

03 Aug 2017 – 03 Aug 2017 : Ode to Celestial Navigation, revised updated and pdf'd

1. 2017-08-03 05:47 Mark Coady
2. 2017-08-03 08:15 Bob Crawley

01 Aug 2017 – 03 Aug 2017 : Re: Equinoxes: when Lon=0 (or 180) but not when Dec=0?

1. 2017-08-01 19:53 Bill B
2. 2017-08-01 21:53 Frank Reed
3. 2017-08-01 23:14 Paul Hirose
4. 2017-08-02 01:07 Lu Abel
5. 2017-08-02 11:23 Tony Oz
6. 2017-08-03 19:45 Paul Hirose

06 Aug 2017 – 06 Aug 2017 : Spacecraft navigation by sextant

1. 2017-08-06 03:42 Paul Hirose

06 Aug 2017 – 07 Aug 2017 : HO 249 alternate binding

1. 2017-08-06 22:40 Hewitt Schlereth
2. 2017-08-07 07:10 Thomas Spidle

06 Aug 2017 – 07 Aug 2017 : Temperature effect on sextants

1. 2017-08-06 20:11 Mark Knudsen
2. 2017-08-06 21:28 Greg Rudzinski
3. 2017-08-07 23:38 Mark Knudsen

08 Aug 2017 – 08 Aug 2017 : ELoran redux

1. 2017-08-08 03:20 Jackson McDonald

08 Aug 2017 – 08 Aug 2017 : Time to cease collecting.

1. 2017-08-08 12:15 Frank Atkins

09 Aug 2017 – 10 Aug 2017 : Vanderbilt University Astro nav Course?

1. 2017-08-09 10:51 Paul Jackson
2. 2017-08-10 06:15 Frank Reed
3. 2017-08-10 08:18 Paul Jackson

05 Aug 2017 – 10 Aug 2017 : Polhemus computer

1. 2017-08-05 16:08 John Blake
2. 2017-08-06 06:50 Gary LaPook
3. 2017-08-06 07:20 Frank Reed
4. 2017-08-06 19:14 John Blake
5. 2017-08-06 20:35 Frank Reed
6. 2017-08-06 20:38 Gary LaPook
7. 2017-08-06 21:27 David Pike
8. 2017-08-07 07:18 Thomas Spidle
9. 2017-08-07 18:43 Ed Popko
10. 2017-08-10 09:28 Gary LaPook

01 Aug 2017 – 12 Aug 2017 : Ode to Celestial Navigation

1. 2017-08-01 01:57 Mark Coady
2. 2017-08-01 02:27 Mark Coady
3. 2017-08-01 06:21 Gary LaPook
4. 2017-08-01 10:22 Ed Popko
5. 2017-08-01 14:27 John D. Howard
6. 2017-08-01 18:21 Hewitt Schlereth
7. 2017-08-02 17:07 Mark Coady
8. 2017-08-02 17:17 Don Seltzer
9. 2017-08-03 02:00 Ron Jones
10. 2017-08-03 02:20 Ken Gebhart
11. 2017-08-03 21:42 John Blake
12. 2017-08-03 22:06 Ken Gebhart
13. 2017-08-04 23:44 Gary LaPook
14. 2017-08-05 12:54 Mark Coady
15. 2017-08-05 18:44 John Blake
16. 2017-08-06 04:10 Gary LaPook
17. 2017-08-08 08:19 Bob Crawley
18. 2017-08-12 05:14 Mark Coady

08 Aug 2017 – 12 Aug 2017 : Ogura IJN

1. 2017-08-08 04:14 David C
2. 2017-08-08 19:50 Peter Smith
3. 2017-08-09 03:57 Mark Coady
4. 2017-08-09 04:22 David C
5. 2017-08-09 18:03 Greg Rudzinski
6. 2017-08-09 20:36 David C
7. 2017-08-09 22:52 Chris Caswell
8. 2017-08-10 00:14 Stan K
9. 2017-08-10 01:06 Greg Rudzinski
10. 2017-08-10 02:57 Greg Rudzinski
11. 2017-08-10 06:19 Frank Reed
12. 2017-08-11 20:14 David C
13. 2017-08-12 21:26 Frank Reed

10 Aug 2017 – 13 Aug 2017 : Sea Day versus Astronomical Day

1. 2017-08-10 15:11 Robert H. van Gent
2. 2017-08-10 16:41 Don Seltzer
3. 2017-08-10 18:40 Herbert Prinz
4. 2017-08-12 22:09 Frank Reed
5. 2017-08-12 23:35 Stephen N.G. Davies
6. 2017-08-13 10:36 Robert H. van Gent

10 Aug 2017 – 13 Aug 2017 : ADMIN: NavList Operations contributions, please...

1. 2017-08-10 06:08 Frank Reed
2. 2017-08-10 18:41 Michael Martin
3. 2017-08-12 21:34 Frank Reed
4. 2017-08-12 22:30 Frank Atkins
5. 2017-08-13 13:45 Chris Caswell
6. 2017-08-13 16:46 Francis Upchurch

14 Aug 2017 – 14 Aug 2017 : C&P bubble horizon and Astra IIB sextant

1. 2017-08-14 18:13 Dale Lichtblau

13 Aug 2017 – 14 Aug 2017 : Calibrating a Bris sextant

1. 2017-08-13 16:31 Marty Lyons
2. 2017-08-13 20:08 Greg Rudzinski
3. 2017-08-14 02:40 Marty Lyons
4. 2017-08-14 04:48 Greg Rudzinski
5. 2017-08-14 13:02 Tony Oz
6. 2017-08-14 13:42 Marty Lyons
7. 2017-08-14 22:50 Marty Lyons

14 Aug 2017 – 14 Aug 2017 : Re: Identifying an electric ship's log device - correction to previous post

1. 2017-08-14 23:25 Michael Bradley

14 Aug 2017 – 14 Aug 2017 : Useful and interesting 1939 bibliography on Air/Sea Navigation

1. 2017-08-14 12:18 Ed Popko
2. 2017-08-14 23:28 David C

11 Aug 2017 – 15 Aug 2017 : GPS spoofing for real

1. 2017-08-11 12:55 Robin Stuart
2. 2017-08-11 17:34 Gary LaPook
3. 2017-08-11 17:35 Gary LaPook
4. 2017-08-11 20:14 David Pike
5. 2017-08-12 21:18 Frank Reed
6. 2017-08-13 00:34 Lu Abel
7. 2017-08-13 13:42 Richard B. Langley
8. 2017-08-13 16:36 Mark Coady
9. 2017-08-13 17:35 Sean C
10. 2017-08-13 18:28 Bill B
11. 2017-08-13 21:16 David Pike
12. 2017-08-13 23:13 Robert VanderPol II
13. 2017-08-13 23:48 Robert VanderPol II
14. 2017-08-14 09:00 David Pike
15. 2017-08-15 04:22 David C

10 Aug 2017 – 15 Aug 2017 : History of HO249/AP3270

1. 2017-08-10 07:47 David Pike
2. 2017-08-12 22:31 Frank Reed
3. 2017-08-14 10:29 David Pike
4. 2017-08-14 21:47 Gary LaPook
5. 2017-08-15 00:09 Gary LaPook
6. 2017-08-15 05:21 Frank Reed
7. 2017-08-15 06:47 David Pike

14 Aug 2017 – 15 Aug 2017 : Identifying an electric ship's log device

1. 2017-08-14 14:18 Carl Herzog
2. 2017-08-14 23:01 Michael Bradley
3. 2017-08-15 07:05 David Pike

15 Aug 2017 – 16 Aug 2017 : Eclipse maps & solar semidiameter

1. 2017-08-15 21:46 Paul Hirose
2. 2017-08-15 22:27 Gary LaPook
3. 2017-08-16 02:56 Frank Reed

14 Aug 2017 – 16 Aug 2017 : Position by rainbow?

1. 2017-08-14 05:34 David C
2. 2017-08-14 05:51 Frank Reed
3. 2017-08-14 13:56 Don Seltzer
4. 2017-08-14 18:28 Francis Upchurch
5. 2017-08-16 11:21 Dave Walden

16 Aug 2017 – 16 Aug 2017 : What folks in varuous U.S. towns will see of the Aug 21 eclipse

1. 2017-08-16 13:03 Ed Popko

15 Aug 2017 – 16 Aug 2017 : Type C Artificial Horizon.

1. 2017-08-15 23:03 Paul Jackson
2. 2017-08-16 03:36 Ken Gebhart
3. 2017-08-16 03:49 Robert Eno
4. 2017-08-16 17:46 Paul Jackson
5. 2017-08-16 17:51 Paul Jackson

16 Aug 2017 – 17 Aug 2017 : Re: What folks in various U.S. towns will see of the Aug 21 eclipse

1. 2017-08-16 18:32 Gary LaPook
2. 2017-08-16 21:56 Bruce J. Pennino
3. 2017-08-17 00:12 Brad Morris
4. 2017-08-17 12:31 Bruce J. Pennino

17 Aug 2017 – 18 Aug 2017 : Re: USS Fitzgerald

1. 2017-08-17 23:15 Jackson McDonald
2. 2017-08-18 00:10 Bob Goethe

18 Aug 2017 – 18 Aug 2017 : Casual eclipse viewing outside totality

1. 2017-08-18 18:55 Frank Reed

17 Aug 2017 – 19 Aug 2017 : No Nautical Almanac data during Aug 21st eclipse

1. 2017-08-17 11:52 Ed Popko
2. 2017-08-17 16:37 Gary LaPook
3. 2017-08-18 20:07 Frank Reed
4. 2017-08-19 05:51 Bill B
5. 2017-08-19 06:17 Frank Reed
6. 2017-08-19 06:59 Sean C

17 Aug 2017 – 19 Aug 2017 : Not another "Where was the photographer?" puzzle

1. 2017-08-17 21:38 David Pike
2. 2017-08-19 07:15 David Pike

19 Aug 2017 – 19 Aug 2017 : Edward Allcard, Solo Sailor on the High Seas

1. 2017-08-19 19:06 Noell Wilson

20 Aug 2017 – 20 Aug 2017 : Navigation Symposium, Mystic Seaport, Nov. 3-5

1. 2017-08-20 16:27 Frank Reed

18 Aug 2017 – 21 Aug 2017 : I got an eclipse

1. 2017-08-18 00:55 Ed Hlywa
2. 2017-08-18 18:35 John D. Howard
3. 2017-08-18 19:53 Frank Reed
4. 2017-08-21 22:27 Mark Coady

21 Aug 2017 – 21 Aug 2017 : Slide rule Bygrave sight reduction

1. 2017-08-21 05:14 Paul Hirose
2. 2017-08-21 23:35 Paul Hirose

22 Aug 2017 – 22 Aug 2017 : Eclipse photos Anderson SC

1. 2017-08-22 10:42 John Carbone

22 Aug 2017 – 22 Aug 2017 : Eclipse of August 21st, 2017

1. 2017-08-22 05:40 Sean C
2. 2017-08-22 06:46 Francis Upchurch
3. 2017-08-22 19:19 Don Seltzer

21 Aug 2017 – 22 Aug 2017 : Eclipse Sun Moon LOPs

1. 2017-08-21 20:32 Greg Rudzinski
2. 2017-08-21 20:57 Manuel Cruz
3. 2017-08-22 18:21 Peter Hakel
4. 2017-08-22 20:16 Peter Hakel

21 Aug 2017 – 22 Aug 2017 : Eclipse Lunar

1. 2017-08-21 19:26 Greg Rudzinski
2. 2017-08-22 20:14 Paul Hirose
3. 2017-08-22 21:45 Peter Hakel

21 Aug 2017 – 23 Aug 2017 : USN Collision Yet Again

1. 2017-08-21 01:01 Scott Owen
2. 2017-08-22 22:34 Bill B
3. 2017-08-23 00:18 Stephen N.G. Davies

23 Aug 2017 – 23 Aug 2017 : Eclipse photos

1. 2017-08-23 05:46 Dustin Baenen

23 Aug 2017 – 23 Aug 2017 : Nice early twilight shot of Jupiter

1. 2017-08-23 10:07 Paul Jackson

24 Aug 2017 – 25 Aug 2017 : Jus a Word of Introduction

1. 2017-08-24 11:35 Calvin Waterbury
2. 2017-08-25 01:28 Sean C

24 Aug 2017 – 25 Aug 2017 : Collisions at sea

1. 2017-08-24 18:26 Jackson McDonald
2. 2017-08-25 03:41 Bruce J. Pennino

25 Aug 2017 – 25 Aug 2017 : Re: Just a Word of Introduction

1. 2017-08-25 08:46 Calvin Waterbury

25 Aug 2017 – 25 Aug 2017 : Collision at sea

1. 2017-08-25 17:21 Mark Knudsen

25 Aug 2017 – 25 Aug 2017 : Ancient Babylonian tablet - world's first trig table?

1. 2017-08-25 21:55 Jackson McDonald
2. 2017-08-25 23:14 Alexandre Eremenko
3. 2017-08-25 23:30 Alexandre Eremenko
4. 2017-08-25 23:40 Greg Rudzinski

18 Aug 2017 – 26 Aug 2017 : Lutz 252 Slide Rule for Navigation

1. 2017-08-18 04:29 Greg Rudzinski
2. 2017-08-21 00:17 Greg Rudzinski
3. 2017-08-21 12:50 Noell Wilson
4. 2017-08-21 13:42 Francis Upchurch
5. 2017-08-26 01:49 Greg Rudzinski

26 Aug 2017 – 26 Aug 2017 : Perpetual Nautical Almanac

1. 2017-08-26 01:50 Calvin Waterbury
2. 2017-08-26 02:51 Noell Wilson
3. 2017-08-26 03:57 Brad Morris
4. 2017-08-26 04:08 John D. Howard
5. 2017-08-26 05:37 Paul Hirose

24 Aug 2017 – 26 Aug 2017 : Nautical Slide Rule

1. 2017-08-24 12:58 Calvin Waterbury
2. 2017-08-24 20:52 David Pike
3. 2017-08-25 08:14 Ronald van Riet
4. 2017-08-25 08:43 Calvin Waterbury
5. 2017-08-25 21:22 David Pike
6. 2017-08-26 23:43 Alan S

25 Aug 2017 – 27 Aug 2017 : SatLoran or eLoran?

1. 2017-08-25 20:20 Frank Reed
2. 2017-08-26 06:08 Robert VanderPol II
3. 2017-08-26 14:11 Joe Dempster
4. 2017-08-26 23:16 David C
5. 2017-08-27 18:19 Lu Abel

28 Aug 2017 – 28 Aug 2017 : Solar computation sample form

1. 2017-08-28 04:51 Joseph Uy

24 Aug 2017 – 28 Aug 2017 : Solar Observation Computation

1. 2017-08-24 06:08 Joseph Uy
2. 2017-08-27 17:22 Sean C
3. 2017-08-28 04:32 Joseph Uy
4. 2017-08-28 05:11 Peter Hakel

25 Aug 2017 – 28 Aug 2017 : Would you recommend TI-83 Plus?

1. 2017-08-25 16:19 Tony Oz
2. 2017-08-26 18:23 Herman Dekker
3. 2017-08-28 19:48 Tony Oz

25 Aug 2017 – 28 Aug 2017 : LED Street Lights

1. 2017-08-25 23:15 David C
2. 2017-08-26 09:56 David Pike
3. 2017-08-26 16:38 Paul Hirose
4. 2017-08-26 20:13 Frank Reed
5. 2017-08-26 23:59 David Pike
6. 2017-08-27 05:19 Paul Dolkas
7. 2017-08-27 06:02 Geoffrey Kolbe
8. 2017-08-27 07:18 David Pike
9. 2017-08-27 08:20 Herman Dekker
10. 2017-08-27 22:03 Paul Dolkas
11. 2017-08-27 22:06 David C
12. 2017-08-28 11:56 Fred Hebard
13. 2017-08-28 12:19 Fred Hebard
14. 2017-08-28 20:58 David Pike

28 Aug 2017 – 29 Aug 2017 : Re: LED Street Lights - Rheostat reconditioning

1. 2017-08-28 09:24 Michael Bradley
2. 2017-08-28 21:31 David Pike
3. 2017-08-29 10:18 Ed Popko

25 Aug 2017 – 31 Aug 2017 : A story of a pilot lost over Pacific and saved by a passenger jet crew?

1. 2017-08-25 11:21 Tony Oz
2. 2017-08-25 20:37 John D. Howard
3. 2017-08-25 20:49 John D. Howard
4. 2017-08-28 14:02 Tony Oz
5. 2017-08-28 19:47 John D. Howard
6. 2017-08-28 21:04 David C
7. 2017-08-28 21:08 Tom Sult
8. 2017-08-29 11:35 Tony Oz
9. 2017-08-30 11:13 Tony Oz
10. 2017-08-30 22:17 Bill Ritchie
11. 2017-08-31 08:08 Tony Oz

31 Aug 2017 – 01 Sep 2017 : Celestial Navigation In The Gps Age: Typos?

1. 2017-08-31 16:53 Tony Oz
2. 2017-08-31 18:43 Bill B
3. 2017-08-31 18:53 Stan K
4. 2017-08-31 18:55 Greg Rudzinski
5. 2017-08-31 19:36 Bill B
6. 2017-09-01 04:05 Bill B
7. 2017-09-01 08:20 Tony Oz

30 Aug 2017 – 01 Sep 2017 : C.Plath Navistar Classic Value

1. 2017-08-30 03:26 Paul Jackson
2. 2017-08-30 10:35 Brad Morris
3. 2017-08-30 14:52 Noell Wilson
4. 2017-08-30 17:40 Greg Rudzinski
5. 2017-08-31 08:42 Paul Jackson
6. 2017-08-31 13:57 Jeremy C
7. 2017-08-31 15:07 Frank Reed
8. 2017-09-01 20:05 Robert Eno

03 Sep 2017 – 03 Sep 2017 : Re: Comparison of sight reduction tables

1. 2017-09-03 01:25 Alan S

04 Sep 2017 – 04 Sep 2017 : Re: Calculator Recommendations and self reliance

1. 2017-09-04 21:09 Patrick Burgess

03 Sep 2017 – 05 Sep 2017 : Calculator Time and Angle Work

1. 2017-09-03 04:08 Marty Lyons
2. 2017-09-03 18:11 Greg Rudzinski
3. 2017-09-03 18:52 Bill B
4. 2017-09-05 20:27 Paul Hirose
5. 2017-09-05 22:38 Alan S

05 Sep 2017 – 06 Sep 2017 : Short term magnetic anomalies

1. 2017-09-05 18:07 Bob Goethe
2. 2017-09-06 06:13 Geoffrey Kolbe
3. 2017-09-06 12:39 Don Seltzer

06 Sep 2017 – 06 Sep 2017 : IEEE lecture on sat nav

1. 2017-09-06 22:07 Greg Licfi

24 Aug 2017 – 07 Sep 2017 : "Totality" in Oregon

1. 2017-08-24 03:42 Doug MacPherson
2. 2017-09-07 01:43 Gary LaPook
3. 2017-09-07 02:05 Doug MacPherson

06 Sep 2017 – 07 Sep 2017 : Sumner Line of Position

1. 2017-09-06 16:55 Ron Jones
2. 2017-09-07 08:00 Andrés Ruiz

03 Sep 2017 – 07 Sep 2017 : Calculator Recommendations

1. 2017-09-03 08:35 Jing C
2. 2017-09-03 17:46 Robert VanderPol II
3. 2017-09-04 19:14 Francis Upchurch
4. 2017-09-04 19:30 Marty Lyons
5. 2017-09-04 19:46 John D. Howard
6. 2017-09-04 22:18 Greg Rudzinski
7. 2017-09-05 03:59 Greg Rudzinski
8. 2017-09-06 04:46 Sean C
9. 2017-09-07 23:34 Bill B

08 Sep 2017 – 08 Sep 2017 : Fritz Uttmark and universal plotting sheets

1. 2017-09-08 09:15 Jing C

08 Sep 2017 – 09 Sep 2017 : Navigation Symposium: presentations by George Kaplan

1. 2017-09-08 19:41 Frank Reed
2. 2017-09-08 20:25 Bob Goethe
3. 2017-09-09 09:59 Andrés Ruiz

09 Sep 2017 – 09 Sep 2017 : Faraday cage

1. 2017-09-09 04:51 Herbert Prinz
2. 2017-09-09 13:22 Bruce J. Pennino
3. 2017-09-09 16:23 Geoffrey Kolbe
4. 2017-09-09 19:25 Jing C
5. 2017-09-09 21:29 Noell Wilson

09 Sep 2017 – 10 Sep 2017 : Low Altitude Setting Sun Sight

1. 2017-09-09 17:11 Bruce J. Pennino
2. 2017-09-09 19:57 Greg Rudzinski
3. 2017-09-10 01:05 Stan K

09 Sep 2017 – 11 Sep 2017 : Plotting multiple LOPs from same location?

1. 2017-09-09 15:29 Dale Lichtblau
2. 2017-09-09 18:07 Greg Rudzinski
3. 2017-09-11 00:04 Peter Hakel

07 Sep 2017 – 11 Sep 2017 : Varuna -- Abandoned due to Loss of Power

1. 2017-09-07 14:11 Jonathan M Bresler
2. 2017-09-07 20:51 Bob Goethe
3. 2017-09-08 16:20 Frank Reed
4. 2017-09-08 17:14 Lu Abel
5. 2017-09-08 18:54 Tony Oz
6. 2017-09-08 20:41 Greg Rudzinski
7. 2017-09-08 21:04 David C
8. 2017-09-08 21:14 Bob Goethe
9. 2017-09-08 21:41 Bob Goethe
10. 2017-09-08 22:00 David C
11. 2017-09-08 22:06 Greg Rudzinski
12. 2017-09-09 01:16 Peter Smith
13. 2017-09-09 02:17 Lu Abel
14. 2017-09-09 08:31 Örjan Sandström
15. 2017-09-09 09:43 Robin Jouan
16. 2017-09-09 15:04 Greg Rudzinski
17. 2017-09-09 17:39 Pete Solon Palmer
18. 2017-09-09 19:56 Bob Goethe
19. 2017-09-09 21:21 Noell Wilson
20. 2017-09-09 22:00 Bill B
21. 2017-09-09 22:03 Bob Goethe
22. 2017-09-09 22:08 Greg Rudzinski
23. 2017-09-09 22:10 Pete Solon Palmer
24. 2017-09-09 22:16 Tom Sult
25. 2017-09-09 22:46 Greg Rudzinski
26. 2017-09-10 01:03 Noell Wilson
27. 2017-09-10 04:19 Gary LaPook
28. 2017-09-10 17:04 Lu Abel
29. 2017-09-10 21:15 Pete Solon Palmer
30. 2017-09-11 17:54 Bruce Cutting

11 Sep 2017 – 11 Sep 2017 : Hurricane Irma

1. 2017-09-11 17:32 Jackson McDonald
2. 2017-09-11 19:26 Greg Rudzinski

11 Sep 2017 – 11 Sep 2017 : HO 211 (Ageton) Sadler method

1. 2017-09-11 21:33 Paul Hirose

08 Sep 2017 – 11 Sep 2017 : Army/Air Corps sextant?

1. 2017-09-08 17:41 Derrick Young
2. 2017-09-11 22:09 Chris Caswell

02 Sep 2017 – 11 Sep 2017 : A-8A Aircraft Sextant

1. 2017-09-02 20:56 Michael Bernhardt
2. 2017-09-03 02:31 Michael Bernhardt
3. 2017-09-03 20:53 Noell Wilson
4. 2017-09-03 23:00 Michael Bernhardt
5. 2017-09-07 21:28 Chris Caswell
6. 2017-09-07 22:55 Michael Bernhardt
7. 2017-09-10 14:14 Chris Caswell
8. 2017-09-11 22:11 Chris Caswell

12 Sep 2017 – 13 Sep 2017 : Navigator's Pillow

1. 2017-09-12 22:56 Bob Goethe
2. 2017-09-13 01:35 Doug MacPherson
3. 2017-09-13 06:30 Andrés Ruiz

27 Aug 2017 – 13 Sep 2017 : A12 Sextant Maintenance

1. 2017-08-27 11:56 David Pike
2. 2017-08-28 00:16 Bill Morris
3. 2017-08-28 07:17 David Pike
4. 2017-08-29 13:51 Andrés Ruiz
5. 2017-08-29 18:22 David Pike
6. 2017-09-11 20:24 David Pike
7. 2017-09-12 18:16 Andrés Ruiz
8. 2017-09-13 06:13 Andrés Ruiz
9. 2017-09-13 09:37 David Pike

14 Sep 2017 – 14 Sep 2017 : A quarter-millennium of almanacs

1. 2017-09-14 00:15 Frank Reed
2. 2017-09-14 02:50 Stan K
3. 2017-09-14 07:00 David Pike
4. 2017-09-14 08:42 David C
5. 2017-09-14 12:22 Alexandre Eremenko
6. 2017-09-14 15:49 Herbert Prinz
7. 2017-09-14 17:15 Jing C
8. 2017-09-14 17:17 Jing C
9. 2017-09-14 21:32 John D. Howard

14 Sep 2017 – 16 Sep 2017 : US Navy and celestial...

1. 2017-09-14 19:28 Alexandre Eremenko
2. 2017-09-14 23:43 Sean C
3. 2017-09-14 23:49 Lu Abel
4. 2017-09-15 02:01 Alexandre Eremenko
5. 2017-09-15 09:06 David Pike
6. 2017-09-15 16:48 Frank Reed
7. 2017-09-15 18:31 Paul Hirose
8. 2017-09-15 19:37 Greg Rudzinski
9. 2017-09-15 19:47 Stan K
10. 2017-09-15 21:59 Dustin Baenen
11. 2017-09-15 23:56 Greg Rudzinski
12. 2017-09-16 02:39 Doug MacPherson
13. 2017-09-16 10:17 Herman Dekker
14. 2017-09-16 17:05 Bob Goethe

15 Sep 2017 – 17 Sep 2017 : Navigate using seafloor data

1. 2017-09-15 14:33 John D. Howard
2. 2017-09-15 16:19 Lu Abel
3. 2017-09-15 17:14 Frank Reed
4. 2017-09-15 20:22 Jackson McDonald
5. 2017-09-16 03:34 John D. Howard
6. 2017-09-16 04:03 Lu Abel
7. 2017-09-17 21:05 Frank Reed

17 Sep 2017 – 17 Sep 2017 : A little sextant with a big range

1. 2017-09-17 20:39 Frank Reed
2. 2017-09-17 21:33 Bruce J. Pennino

18 Sep 2017 – 18 Sep 2017 : More heads are rolling over destroyer collisions

1. 2017-09-18 22:00 Lu Abel

19 Sep 2017 – 19 Sep 2017 : Lutz 102 S and Schlereth 229 Tables

1. 2017-09-19 20:01 Greg Rudzinski

19 Sep 2017 – 19 Sep 2017 : Talk like a pirate day

1. 2017-09-19 20:47 Bill B

19 Sep 2017 – 20 Sep 2017 : The Dunlap Sunrise Sunset Computer

1. 2017-09-19 21:58 Brad Morris
2. 2017-09-20 03:05 Stan K
3. 2017-09-20 04:57 Gary LaPook
4. 2017-09-20 10:57 Brad Morris
5. 2017-09-20 15:40 Gary LaPook

21 Sep 2017 – 21 Sep 2017 : Ageton Classic Table Modification

1. 2017-09-21 01:12 Greg Rudzinski

19 Sep 2017 – 21 Sep 2017 : Occultation seen from Flight level 410

1. 2017-09-19 17:33 Antoine Couëtte
2. 2017-09-19 18:26 Greg Rudzinski
3. 2017-09-19 18:28 Noell Wilson
4. 2017-09-20 14:55 Antoine Couëtte
5. 2017-09-20 14:59 Antoine Couëtte
6. 2017-09-21 02:34 Frank Reed

21 Sep 2017 – 21 Sep 2017 : Re: new star finder

1. 2017-09-21 03:57 Herman Dekker

21 Sep 2017 – 23 Sep 2017 : US Navy switches AIS ON

1. 2017-09-21 21:21 Herman Dekker
2. 2017-09-21 22:40 Frank Reed
3. 2017-09-22 03:27 Michael Bernhardt
4. 2017-09-23 02:19 Don Seltzer

23 Sep 2017 – 24 Sep 2017 : Spring Equinox

1. 2017-09-23 01:11 David C
2. 2017-09-23 12:08 Alexandre Eremenko
3. 2017-09-24 05:29 David Fleming
4. 2017-09-24 11:45 Alexandre Eremenko
5. 2017-09-24 14:19 David Fleming
6. 2017-09-24 14:27 Don Seltzer
7. 2017-09-24 16:51 Alexandre Eremenko

22 Sep 2017 – 24 Sep 2017 : Re: Tamaya NC-77 Almanac

1. 2017-09-22 22:45 Joseph Rheubeck
2. 2017-09-23 20:29 Greg Rudzinski
3. 2017-09-24 22:36 Joseph Rheubeck

24 Aug 2017 – 25 Sep 2017 : Can I Navigate Without an Assumed Position?

1. 2017-08-24 12:27 Calvin Waterbury
2. 2017-08-24 16:41 Greg Rudzinski
3. 2017-08-25 08:39 Calvin Waterbury
4. 2017-08-25 15:08 John D. Howard
5. 2017-08-25 21:19 Greg Rudzinski
6. 2017-08-26 13:24 Bill Lionheart
7. 2017-08-27 05:39 Geoffrey Kolbe
8. 2017-08-28 06:07 Dustin Baenen
9. 2017-08-30 07:33 Robin Jouan
10. 2017-09-12 21:13 Hien Thanh Nguyen
11. 2017-09-12 21:52 Stan K
12. 2017-09-12 23:11 Hien Thanh Nguyen
13. 2017-09-12 23:13 Mark Knudsen
14. 2017-09-13 07:03 Robin Jouan
15. 2017-09-13 20:50 Hien Thanh Nguyen
16. 2017-09-14 07:06 Robin Jouan
17. 2017-09-14 07:40 Robin Jouan
18. 2017-09-14 18:01 Hien Thanh Nguyen
19. 2017-09-15 06:55 Robin Jouan
20. 2017-09-22 22:37 Ron Jones
21. 2017-09-23 10:00 Robin Jouan
22. 2017-09-23 12:01 Robin Jouan
23. 2017-09-23 13:29 Antoine Couëtte
24. 2017-09-23 19:05 Peter Hakel
25. 2017-09-23 21:32 Ron Jones
26. 2017-09-23 21:41 Ron Jones
27. 2017-09-24 02:57 Antoine Couëtte
28. 2017-09-24 04:23 Ron Jones
29. 2017-09-24 09:58 Robin Jouan
30. 2017-09-24 13:51 Herman Dekker
31. 2017-09-24 15:52 John D. Howard
32. 2017-09-24 16:31 Frank Reed
33. 2017-09-24 17:34 Bill Lionheart
34. 2017-09-24 18:00 John D. Howard
35. 2017-09-24 19:43 Antoine Couëtte
36. 2017-09-24 20:29 Antoine Couëtte
37. 2017-09-24 21:41 Greg Rudzinski
38. 2017-09-25 02:22 Antoine Couëtte
39. 2017-09-25 03:00 Antoine Couëtte
40. 2017-09-25 06:53 Andrés Ruiz
41. 2017-09-25 07:40 Andrés Ruiz
42. 2017-09-25 10:00 Robin Jouan

01 Sep 2017 – 25 Sep 2017 : The "Death to the Intercept Method" revisited?

1. 2017-09-01 17:39 Tony Oz
2. 2017-09-02 05:47 Francis Upchurch
3. 2017-09-04 19:16 Jing C
4. 2017-09-04 19:45 Brad Morris
5. 2017-09-05 14:31 Tony Oz
6. 2017-09-05 16:13 Francis Upchurch
7. 2017-09-05 18:22 Jing C
8. 2017-09-05 18:29 Frank Reed
9. 2017-09-06 00:32 Stan K
10. 2017-09-06 06:29 Geoffrey Kolbe
11. 2017-09-06 07:48 Andrés Ruiz
12. 2017-09-06 08:08 Tony Oz
13. 2017-09-06 12:43 Andrés Ruiz
14. 2017-09-06 16:36 Tony Oz
15. 2017-09-06 19:13 Frank Reed
16. 2017-09-06 19:41 Jing C
17. 2017-09-07 08:52 Tony Oz
18. 2017-09-07 10:20 Robin Jouan
19. 2017-09-07 14:34 Robin Jouan
20. 2017-09-07 20:19 Herbert Prinz
21. 2017-09-08 05:26 Herbert Prinz
22. 2017-09-08 06:45 Andrés Ruiz
23. 2017-09-08 06:49 Andrés Ruiz
24. 2017-09-08 07:25 Andrés Ruiz
25. 2017-09-08 08:45 Tony Oz
26. 2017-09-08 13:38 Andrés Ruiz
27. 2017-09-21 04:42 Jing C
28. 2017-09-21 05:23 Jing C
29. 2017-09-21 09:46 Geoffrey Kolbe
30. 2017-09-21 15:07 Jing C
31. 2017-09-25 13:43 Andrés Ruiz

06 Sep 2017 – 25 Sep 2017 : Re: Calculator Recommendations (Ageton Classic)

1. 2017-09-06 00:47 Stan K
2. 2017-09-11 05:51 Jing C
3. 2017-09-11 10:54 Stan K
4. 2017-09-11 14:44 Greg Rudzinski
5. 2017-09-11 15:40 Tony Oz
6. 2017-09-11 17:50 Bob Goethe
7. 2017-09-11 19:16 Greg Rudzinski
8. 2017-09-11 19:53 Alan S
9. 2017-09-11 20:36 Hewitt Schlereth
10. 2017-09-12 10:11 Andrés Ruiz
11. 2017-09-12 15:14 Alan S
12. 2017-09-12 17:43 Andrés Ruiz
13. 2017-09-13 08:18 Bob Crawley
14. 2017-09-13 17:26 Greg Rudzinski
15. 2017-09-13 19:15 Hewitt Schlereth
16. 2017-09-25 14:37 Tony Oz
17. 2017-09-25 18:52 Greg Rudzinski
18. 2017-09-25 19:24 Francis Upchurch
19. 2017-09-25 19:42 Greg Rudzinski

25 Sep 2017 – 26 Sep 2017 : Quest for Longitude

1. 2017-09-25 23:22 Jackson McDonald
2. 2017-09-26 01:24 Don Seltzer

25 Sep 2017 – 26 Sep 2017 : Is there any connection between difference in SHA and difference in azimuth?

1. 2017-09-25 07:52 David Pike
2. 2017-09-25 19:26 Bill B
3. 2017-09-25 19:36 Bill B
4. 2017-09-25 21:53 David Pike
5. 2017-09-25 22:43 Frank Reed
6. 2017-09-26 04:47 Sean C

23 Sep 2017 – 27 Sep 2017 : Quiz about the Southern Cross

1. 2017-09-23 13:48 Antoine Couëtte
2. 2017-09-23 23:15 Gary LaPook
3. 2017-09-24 00:52 Bruce Cutting
4. 2017-09-24 09:11 Antoine Couëtte
5. 2017-09-24 09:14 Antoine Couëtte
6. 2017-09-24 12:51 Robin Stuart
7. 2017-09-24 15:06 Robert H. van Gent
8. 2017-09-24 15:18 Antoine Couëtte
9. 2017-09-24 16:10 Frank Reed
10. 2017-09-25 01:04 Michael Martin
11. 2017-09-25 04:02 Robert VanderPol II
12. 2017-09-26 12:38 Robin Stuart
13. 2017-09-26 17:16 Antoine Couëtte
14. 2017-09-26 21:44 Gary LaPook
15. 2017-09-26 22:28 David C
16. 2017-09-27 03:30 Antoine Couëtte

22 Sep 2017 – 29 Sep 2017 : Angular separation v. azimuth separation

1. 2017-09-22 18:52 Frank Reed
2. 2017-09-24 19:57 Antoine Couëtte
3. 2017-09-29 04:54 Antoine Couëtte

26 Sep 2017 – 29 Sep 2017 : Re: USS John S McCain

1. 2017-09-26 02:09 Stephen N.G. Davies
2. 2017-09-28 08:24 Gary LaPook
3. 2017-09-28 13:47 Robert Wyatt
4. 2017-09-28 14:04 Tom Sult
5. 2017-09-29 16:39 Wolfgang Köberer

28 Sep 2017 – 29 Sep 2017 : Natural haversines: the interpolation table?

1. 2017-09-28 15:27 Tony Oz
2. 2017-09-28 18:31 Frank Reed
3. 2017-09-29 11:26 Tony Oz
4. 2017-09-29 15:44 Tony Oz
5. 2017-09-29 18:40 Greg Rudzinski

20 Sep 2017 – 30 Sep 2017 : Longines A-7 Avigation Hack Watch

1. 2017-09-20 15:05 Eitan A
2. 2017-09-20 15:36 Greg Rudzinski
3. 2017-09-20 21:15 Eitan A
4. 2017-09-21 03:02 Brad Morris
5. 2017-09-21 09:37 Geoffrey Kolbe
6. 2017-09-21 17:11 Eitan A
7. 2017-09-21 17:16 Eitan A
8. 2017-09-21 20:14 Frank Reed
9. 2017-09-22 05:41 Paul Hirose
10. 2017-09-22 06:53 Peter Monta
11. 2017-09-25 17:52 Eitan A
12. 2017-09-25 17:54 Eitan A
13. 2017-09-26 16:28 Eitan A
14. 2017-09-29 17:26 Peter Monta
15. 2017-09-29 20:36 Bill Lionheart
16. 2017-09-30 01:49 Antoine Couëtte
17. 2017-09-30 08:37 Antoine Couëtte

27 Sep 2017 – 30 Sep 2017 : Saturn Lunar by DSLR Camera

1. 2017-09-27 03:38 Greg Rudzinski
2. 2017-09-29 04:51 Antoine Couëtte
3. 2017-09-29 12:44 Andrés Ruiz
4. 2017-09-29 18:33 Greg Rudzinski
5. 2017-09-30 10:09 Andrés Ruiz
6. 2017-09-30 10:30 Antoine Couëtte
7. 2017-09-30 17:59 Greg Rudzinski

01 Oct 2017 – 01 Oct 2017 : Sextant view at sunset

1. 2017-10-01 05:00 Peter Monta
2. 2017-10-01 05:39 Antoine Couëtte

30 Sep 2017 – 02 Oct 2017 : Robertwhite.com

1. 2017-09-30 18:17 Bob Goethe
2. 2017-09-30 19:40 Herbert Prinz
3. 2017-09-30 20:23 David C
4. 2017-10-01 14:42 Paul Saffo
5. 2017-10-02 17:20 Frank Reed

02 Oct 2017 – 03 Oct 2017 : H.O. 249, Vol. 1 as a guide for star selection for direct position computation?

1. 2017-10-02 17:20 Tony Oz
2. 2017-10-02 18:59 Greg Rudzinski
3. 2017-10-03 09:12 Tony Oz
4. 2017-10-03 18:08 Frank Reed
5. 2017-10-03 18:19 David Fleming
6. 2017-10-03 19:16 Greg Rudzinski

29 Sep 2017 – 03 Oct 2017 : Regulus Occultation, unexpected results

1. 2017-09-29 12:38 Antoine Couëtte
2. 2017-09-30 04:04 Paul Hirose
3. 2017-09-30 07:05 Antoine Couëtte
4. 2017-10-01 00:52 Sean C
5. 2017-10-01 04:54 Sean C
6. 2017-10-01 05:16 Paul Hirose
7. 2017-10-01 05:32 Antoine Couëtte
8. 2017-10-01 15:55 Antoine Couëtte
9. 2017-10-01 22:48 Paul Hirose
10. 2017-10-02 13:30 Dave Walden
11. 2017-10-02 17:19 Antoine Couëtte
12. 2017-10-03 19:25 Frank Reed

24 Sep 2017 – 04 Oct 2017 : Preparing the sky with Vol. 2 and 3 Pub. 249.

1. 2017-09-24 18:09 Guus Dekker
2. 2017-09-24 19:22 Gary LaPook
3. 2017-09-24 20:51 David Pike
4. 2017-09-25 04:21 Ken Gebhart
5. 2017-09-25 09:24 Guus Dekker
6. 2017-09-25 17:06 Doug MacPherson
7. 2017-10-04 12:20 Guus Dekker

04 Oct 2017 – 06 Oct 2017 : Hardware store Xylene in A-12 bubble sextant?

1. 2017-10-04 20:40 Jim Speedwell
2. 2017-10-05 02:21 Paul Dolkas
3. 2017-10-05 03:54 Robert Eno
4. 2017-10-05 10:54 Tony Oz
5. 2017-10-06 05:52 Geoffrey Kolbe

06 Oct 2017 – 06 Oct 2017 : Shackleton

1. 2017-10-06 09:44 Gary LaPook

04 Oct 2017 – 07 Oct 2017 : Full moon sights and lifeboat sextant accuracy

1. 2017-10-04 22:50 Jing C
2. 2017-10-04 23:41 Ed Popko
3. 2017-10-05 00:05 David Fleming
4. 2017-10-05 02:00 Hewitt Schlereth
5. 2017-10-05 02:04 Stan K
6. 2017-10-05 21:13 Ron Jones
7. 2017-10-06 19:05 Greg Rudzinski
8. 2017-10-07 00:20 Bruce Cutting
9. 2017-10-07 00:53 Greg Rudzinski
10. 2017-10-07 18:13 Greg Rudzinski

08 Oct 2017 – 08 Oct 2017 : Navigation Symposium, four weeks away

1. 2017-10-08 02:24 Frank Reed

09 Oct 2017 – 09 Oct 2017 : Navigation Spreadsheets in 2018

1. 2017-10-09 19:49 Peter Hakel

10 Oct 2017 – 10 Oct 2017 : Polhemus computer

1. 2017-10-10 18:39 Gary LaPook
2. 2017-10-10 19:05 Stan K

10 Oct 2017 – 11 Oct 2017 : Re: Celesticomp

1. 2017-10-10 14:18 Marshall Edgell
2. 2017-10-11 10:51 Ian Gifford

08 Oct 2017 – 12 Oct 2017 : Otis King Sight Reduction

1. 2017-10-08 18:10 Greg Rudzinski
2. 2017-10-09 07:13 Francis Upchurch
3. 2017-10-11 17:46 Greg Rudzinski
4. 2017-10-11 21:55 Brad Morris
5. 2017-10-12 04:04 Robert VanderPol II
6. 2017-10-12 15:21 Greg Rudzinski

15 Oct 2017 – 15 Oct 2017 : Islamic astronomy

1. 2017-10-15 12:58 Jackson McDonald

08 Oct 2017 – 15 Oct 2017 : The Maths behind DSD

1. 2017-10-08 23:38 Eamonn Sparling
2. 2017-10-09 01:11 Greg Rudzinski
3. 2017-10-09 12:08 Dave Walden
4. 2017-10-09 17:12 Eamonn Sparling
5. 2017-10-10 00:02 Paul Hirose
6. 2017-10-15 16:24 Eamonn Sparling

16 Oct 2017 – 16 Oct 2017 : "backseat driver in a bomber" (1943 article)

1. 2017-10-16 06:56 Paul Hirose

16 Oct 2017 – 16 Oct 2017 : Re: American Practical Navigator, Bowditch 2017

1. 2017-10-16 21:20 Alan S

26 Sep 2017 – 16 Oct 2017 : Mirror adjustment tools

1. 2017-09-26 16:04 Hien Thanh Nguyen
2. 2017-09-26 17:50 Greg Rudzinski
3. 2017-09-26 21:34 Hien Thanh Nguyen
4. 2017-09-26 22:46 Greg Rudzinski
5. 2017-09-26 22:47 Frank Reed
6. 2017-09-27 02:02 Hien Thanh Nguyen
7. 2017-09-27 02:36 Brad Morris
8. 2017-09-27 12:57 Hien Thanh Nguyen
9. 2017-09-27 16:05 Mark Knudsen
10. 2017-09-29 17:42 Peter Monta
11. 2017-09-29 19:57 Stan K
12. 2017-09-30 03:56 Hien Thanh Nguyen
13. 2017-10-04 22:35 Hien Thanh Nguyen
14. 2017-10-05 01:54 Stan K
15. 2017-10-05 03:55 Peter Monta
16. 2017-10-05 04:06 Peter Monta
17. 2017-10-05 18:50 Mark Knudsen
18. 2017-10-06 15:23 Hien Thanh Nguyen
19. 2017-10-06 17:02 Brad Morris
20. 2017-10-06 23:48 Stan K
21. 2017-10-07 11:07 Hien Thanh Nguyen
22. 2017-10-07 16:54 Frank Reed
23. 2017-10-08 21:03 Ridge White
24. 2017-10-08 22:38 Peter Monta
25. 2017-10-09 10:32 Luc Desmedt
26. 2017-10-11 07:33 Hien Thanh Nguyen
27. 2017-10-11 07:40 Hien Thanh Nguyen
28. 2017-10-12 19:40 Hien Thanh Nguyen
29. 2017-10-12 21:23 Ridge White
30. 2017-10-12 21:59 Frank Reed
31. 2017-10-12 23:48 Hien Thanh Nguyen
32. 2017-10-13 00:04 Hien Thanh Nguyen
33. 2017-10-13 00:06 Sean C
34. 2017-10-13 00:19 Frank Reed
35. 2017-10-13 10:48 Tony Oz
36. 2017-10-13 17:01 D Maracle
37. 2017-10-13 17:15 Ed Popko
38. 2017-10-14 10:36 Hien Thanh Nguyen
39. 2017-10-14 13:05 Ed Popko
40. 2017-10-16 20:30 Don Seltzer
41. 2017-10-16 22:11 Hien Thanh Nguyen

05 Oct 2017 – 17 Oct 2017 : The "Raft Book" by Harold Gatty - ?

1. 2017-10-05 16:33 Tony Oz
2. 2017-10-05 22:24 Gary LaPook
3. 2017-10-06 08:11 Bob Crawley
4. 2017-10-06 11:21 Tony Oz
5. 2017-10-06 16:52 Robert VanderPol II
6. 2017-10-06 18:14 Robert Eno
7. 2017-10-06 19:20 Tony Oz
8. 2017-10-16 10:35 Tony Oz
9. 2017-10-16 13:56 Robert VanderPol II
10. 2017-10-16 14:35 Tony Oz
11. 2017-10-16 18:15 Dave Walden
12. 2017-10-16 19:29 Tony Oz
13. 2017-10-17 09:45 Tony Oz

16 Oct 2017 – 17 Oct 2017 : Accuracy of ephemeris

1. 2017-10-16 08:21 Bill Lionheart
2. 2017-10-16 14:02 John D. Howard
3. 2017-10-16 20:02 Bill Lionheart
4. 2017-10-17 01:17 Ken Muldrew
5. 2017-10-17 06:23 Bill Lionheart
6. 2017-10-17 12:38 Ken Muldrew

06 Oct 2017 – 18 Oct 2017 : Dark Glass Artificial Horizon

1. 2017-10-06 21:34 David Pike
2. 2017-10-07 07:43 Herman Dekker
3. 2017-10-07 08:07 David Pike
4. 2017-10-07 10:50 Geoffrey Kolbe
5. 2017-10-07 19:14 Bruce J. Pennino
6. 2017-10-07 22:06 David Pike
7. 2017-10-18 13:41 Marty Lyons
8. 2017-10-18 14:32 David Pike
9. 2017-10-18 16:26 Marty Lyons

18 Oct 2017 – 18 Oct 2017 : A different kind of positional astronomy

1. 2017-10-18 17:53 Jing C
2. 2017-10-18 18:22 Brad Morris
3. 2017-10-18 22:07 Herbert Prinz
4. 2017-10-18 22:45 Brad Morris

30 Sep 2017 – 19 Oct 2017 : Molasses as an artificial horizon

1. 2017-09-30 18:29 Bob Goethe
2. 2017-09-30 20:17 Bruce J. Pennino
3. 2017-09-30 20:21 David C
4. 2017-10-01 03:29 John D. Howard
5. 2017-10-01 13:16 Ed Popko
6. 2017-10-01 13:21 Randall Morrow
7. 2017-10-01 16:16 Mark Knudsen
8. 2017-10-01 17:09 Wayne Hilliard
9. 2017-10-01 18:08 Ed Popko
10. 2017-10-01 19:56 David Pike
11. 2017-10-02 17:58 Bob Goethe
12. 2017-10-02 21:54 Wayne Hilliard
13. 2017-10-03 00:22 Brad Morris
14. 2017-10-03 13:53 Noell Wilson
15. 2017-10-04 19:16 Randall Morrow
16. 2017-10-04 22:39 Jing C
17. 2017-10-05 18:40 Mark Knudsen
18. 2017-10-05 19:28 Randall Morrow
19. 2017-10-18 13:53 Marty Lyons
20. 2017-10-18 20:59 Alan S
21. 2017-10-19 14:57 Stephen Wawrzyniec

15 Oct 2017 – 19 Oct 2017 : ASA Douglas Style Plotter

1. 2017-10-15 20:46 Greg Rudzinski
2. 2017-10-16 10:16 Herman Dekker
3. 2017-10-16 14:08 David Pike
4. 2017-10-16 20:06 Greg Rudzinski
5. 2017-10-17 00:37 Herman Dekker
6. 2017-10-17 06:40 David Pike
7. 2017-10-17 09:33 Herman Dekker
8. 2017-10-19 16:51 Tony Oz

18 Oct 2017 – 19 Oct 2017 : Houseboat of time

1. 2017-10-18 01:31 Marty Lyons
2. 2017-10-18 14:24 Don Seltzer
3. 2017-10-18 15:47 Rommel John Miller
4. 2017-10-18 16:43 Marty Lyons
5. 2017-10-19 13:56 Paul Saffo
6. 2017-10-19 15:50 Tony Oz
7. 2017-10-19 19:59 Paul Saffo

19 Oct 2017 – 19 Oct 2017 : Bowditch's Navigator 1825

1. 2017-10-19 19:53 Karyn Kilcher
2. 2017-10-19 20:22 Frank Reed
3. 2017-10-19 20:28 Rommel John Miller

20 Oct 2017 – 20 Oct 2017 : Re: Houseboat of time (about that pic of Ridge...)

1. 2017-10-20 05:01 Paul Saffo

20 Oct 2017 – 20 Oct 2017 : Rhode Island Tall Ship Incident

1. 2017-10-20 02:11 Frank Reed
2. 2017-10-20 02:50 Marty Lyons
3. 2017-10-20 17:26 Örjan Sandström
4. 2017-10-20 17:58 Frank Reed
5. 2017-10-20 19:17 Bill B

19 Oct 2017 – 20 Oct 2017 : Airline inflight Route Map Anomalies and a Puzzle

1. 2017-10-19 21:29 Robin Stuart
2. 2017-10-19 22:04 David C
3. 2017-10-19 22:50 Brad Morris
4. 2017-10-20 00:30 Frank Reed
5. 2017-10-20 01:22 Frank Reed
6. 2017-10-20 21:56 Robin Stuart

19 Oct 2017 – 21 Oct 2017 : Azimuth method for position

1. 2017-10-19 23:50 Marty Lyons
2. 2017-10-20 06:06 Geoffrey Kolbe
3. 2017-10-20 09:15 Francis Upchurch
4. 2017-10-20 10:24 Andrés Ruiz
5. 2017-10-20 10:41 Andrés Ruiz
6. 2017-10-20 14:07 Herman Dekker
7. 2017-10-20 14:58 Francis Upchurch
8. 2017-10-20 16:49 Bill Lionheart
9. 2017-10-20 20:48 Francis Upchurch
10. 2017-10-21 00:14 Noell Wilson
11. 2017-10-21 15:37 Geoffrey Kolbe
12. 2017-10-21 18:30 Francis Upchurch