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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding

Recent Messages, dates UT (833 new since last visit):
Re: Obtuse versus acute cocked hatDavid Pike21 Mar, 23:24
Zenith FixesDavid Pike21 Mar, 22:41
Re: Obtuse versus acute cocked hatBill Lionheart21 Mar, 21:14
Re: Obtuse versus acute cocked hatRobin Stuart21 Mar, 18:36
Re: Today’s the Spring EquinoxÖrjan Sandström21 Mar, 17:16
Conditional Cocked HatRobin Stuart21 Mar, 12:55
Re: Ellipse of Confidence in position findingAndrés Ruiz21 Mar, 08:44
Obtuse versus acute cocked hatBill Lionheart21 Mar, 08:07
Re: Today’s the Spring EquinoxJohn D. Howard20 Mar, 23:32
Re: Today’s the Spring EquinoxDavid C20 Mar, 23:19
Re: Today’s the Spring EquinoxDavid C20 Mar, 22:31
Re: Today’s the Spring EquinoxDavid C20 Mar, 22:25
Today’s the Spring EquinoxDavid Pike20 Mar, 13:50
Re: Bessel's solution of lunar distancesRoger W. Sinnott20 Mar, 12:54
Re: Sarl-CPI sextantsPaul Bedel20 Mar, 11:04
Re: Human magnetic senseTony Oz20 Mar, 08:50
Re: Ellipse of Confidence in position findingAndrés Ruiz20 Mar, 07:57
Re: Ellipse of Confidence in position findingAndrés Ruiz20 Mar, 07:26
Re: Bessel's solution of lunar distancesFrank Reed19 Mar, 15:39
Human magnetic senseFrank Reed19 Mar, 15:05
Re: Bessel's solution of lunar distancesRoger W. Sinnott19 Mar, 14:43
Re: Index mirror typePosth P19 Mar, 10:12
Re: Index mirror typeAlexandre Eremenko19 Mar, 00:16
Re: Index mirror typeAlexandre Eremenko19 Mar, 00:10
Re: The Appleyard Course and Distance ComputerDave Walden18 Mar, 23:37
Sarl-CPI sextantsAlberto Najar18 Mar, 22:01
Index mirror typeIgor S.18 Mar, 21:48
Re: Ellipse of Confidence in position findingDavid Pike18 Mar, 19:34
Re: Ellipse of Confidence in position findingRobin Stuart18 Mar, 16:17
Re: Bessel's solution of lunar distancesMurray Peake18 Mar, 12:59
Re: Ellipse of Confidence in position findingDavid Pike18 Mar, 11:29
Re: Bessel's solution of lunar distancesRobert H. van Gent18 Mar, 09:23
Re: Ellipse of Confidence in position findingBill Lionheart18 Mar, 07:22
Re: Ellipse of Confidence in position findingDavid Pike17 Mar, 18:25
Re: Ellipse of Confidence in position findingRobin Stuart17 Mar, 16:05
Bessel's solution of lunar distancesRoger W. Sinnott17 Mar, 15:33
Re: Ellipse of Confidence in position findingGeoffrey Kolbe17 Mar, 06:43
B-24 mission to MühldorfPaul Hirose16 Mar, 21:06
Re: Mercury is the closest planet, on average...Bill Lionheart16 Mar, 16:16
Re: Mercury is the closest planet, on average...David Pike16 Mar, 08:58
Possible GPS Date Rollover problems week of April 6, 2019Derrick Young15 Mar, 23:49
Mercury is the closest planet, on average...Frank Reed15 Mar, 22:09
Re: The Appleyard Course and Distance ComputerDavid Pike15 Mar, 21:21
Re: Ellipse of Confidence in position findingRobin Stuart15 Mar, 20:40
Re: Ellipse of Confidence in position findingRobin Stuart15 Mar, 20:18
Re: Corrections for latitude when taking sightsFrank Reed15 Mar, 16:10
Re: What is the radius of the Prime Vertical?Frank Reed15 Mar, 15:52
Re: An analytical solution of the two star sight problem of celestial navigationRobin Stuart15 Mar, 15:07
Re: What is the radius of the Prime Vertical?David Pike15 Mar, 13:21
Re: Corrections for latitude when taking sightsÖrjan Sandström15 Mar, 09:03
Re: Ellipse of Confidence in position findingBill Lionheart15 Mar, 08:58
Re: What is the radius of the Prime Vertical?Frank Reed15 Mar, 00:17
Re: What is the radius of the Prime Vertical?David Pike14 Mar, 23:15
Re: What is the radius of the Prime Vertical?Frank Reed14 Mar, 22:02
What is the radius of the Prime Vertical?David Pike14 Mar, 17:08
Re: Ellipse of Confidence in position findingAndrés Ruiz14 Mar, 13:57
Re: Corrections for latitude when taking sightsBrad Morris14 Mar, 00:57
Re: Corrections for latitude when taking sightsDavid Pike13 Mar, 23:56
Re: Corrections for latitude when taking sightsFrank Reed13 Mar, 23:02
Re: Corrections for latitude when taking sightsBrian Walton13 Mar, 22:07
Re: Corrections for latitude when taking sightsBrad Morris13 Mar, 20:56
Re: Corrections for latitude when taking sightsFrank Reed13 Mar, 20:01
Re: Corrections for latitude when taking sightsBrad Morris13 Mar, 19:29
Re: Corrections for latitude when taking sightsFrank Reed13 Mar, 19:09
Re: Short Term Proper MotionPaul Hirose13 Mar, 17:40
Re: Corrections for latitude when taking sightsDavid Pike13 Mar, 16:42
Re: Ebony OctantChris Caswell13 Mar, 10:54
Re: Corrections for latitude when taking sightsDavid Pike13 Mar, 08:29
Re: Ellipse of Confidence in position findingBill Lionheart13 Mar, 07:51
Re: Corrections for latitude when taking sightsBrian Walton13 Mar, 04:15
Re: Short Term Proper MotionPaul Hirose13 Mar, 03:42
Re: Corrections for latitude when taking sightsBrad Morris13 Mar, 02:19
Re: Moon's crescent when viewed from low latitudesMichael Bradley13 Mar, 00:34
Re: Old stone walls record the changing location of magnetic northBruce J. Pennino12 Mar, 23:36
Re: Corrections for latitude when taking sightsDavid Pike12 Mar, 21:56
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