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

April, 2021

Index includes 163 messages. Sorted by message ID, in descending order.

                    
Re: HarvardX offers free online course "PredictionX: Lost Without Longitude"Alan S30 Apr, 21:11
HarvardX offers free online course "PredictionX: Lost Without Longitude"Ed Popko30 Apr, 16:38
Re: Simex sextantBill Morris30 Apr, 05:04
Re: No online "Office Hours" todayFrank Reed29 Apr, 18:00
No online "Office Hours" todayFrank Reed29 Apr, 17:30
Re: Charles H Cotter's PhD ThesisDavid C29 Apr, 04:16
Re: Simex sextantMike Burkes29 Apr, 02:32
Michael Collins and the sextant on Apollo 11Frank Reed28 Apr, 21:05
Re: Golden Globe Race -- how would you detect cheating?Gary LaPook28 Apr, 18:43
Re: Golden Globe Race -- how would you detect cheating?Gary LaPook28 Apr, 18:38
Re: Golden Globe Race -- how would you detect cheating?Murray Buckman28 Apr, 17:37
Re: Time Sight and Ex-Meridian by BygraveBrian Walton28 Apr, 16:11
Re: Golden Globe Race -- how would you detect cheating?Bill Lionheart28 Apr, 09:05
Re: Charles H Cotter's PhD ThesisRobert H. van Gent28 Apr, 08:35
Re: Golden Globe Race -- how would you detect cheating?Tony Oz28 Apr, 08:33
Re: Golden Globe Race -- how would you detect cheating?Gary LaPook28 Apr, 07:41
Charles H Cotter's PhD ThesisDavid C28 Apr, 06:46
Re: Golden Globe Race -- how would you detect cheating?Bob Goethe27 Apr, 22:11
Re: Golden Globe Race -- how would you detect cheating?Frank Reed27 Apr, 18:58
Re: Golden Globe Race -- how would you detect cheating?David C27 Apr, 18:58
Re: Golden Globe Race -- how would you detect cheating?David Pike27 Apr, 17:15
Re: Golden Globe Race -- how would you detect cheating?Greg Rudzinski27 Apr, 16:53
Golden Globe Race -- how would you detect cheating?Bill Lionheart27 Apr, 10:29
Papers by George H. KaplanAndrés Ruiz27 Apr, 09:03
Re: Simex sextantDavid C27 Apr, 03:21
Re: Simex sextantDavid C27 Apr, 02:43
Re: Simex sextantBill Morris26 Apr, 20:53
Re: Simex sextantDavid Pike26 Apr, 19:47
Celestial Navigation article in Popular MechanicsFrank Reed26 Apr, 19:02
Re: Simex sextantMurray Buckman26 Apr, 16:56
Re: Simex sextantFred Hebard26 Apr, 15:17
Re: Simex sextantAlexandre Eremenko26 Apr, 14:41
Re: Simex sextantFrank Reed26 Apr, 14:41
Simex sextantDavid C26 Apr, 05:14
Re: Galilean eyepiece description?Paul Saffo25 Apr, 20:53
Re: Galilean eyepiece description?Peter Monta25 Apr, 11:28
Re: Galilean eyepiece description?Bill Morris25 Apr, 05:20
Sunday "Office Hours" session, 4pm Eastern (2000 UT)Frank Reed25 Apr, 02:30
Re: Galilean eyepiece description?Paul Saffo24 Apr, 19:51
Re: Galilean eyepiece description?Bill Morris24 Apr, 04:00
Re: Galilean eyepiece description?Peter Monta23 Apr, 23:25
Galilean eyepiece description?Paul Saffo23 Apr, 21:41
Re: Davis MK15 light mod possible?Paul Dolkas23 Apr, 16:07
Re: DIY Starfinder - a lockdown projectTony Oz23 Apr, 11:03
Excellent talk on the Apollo 11 guidance computerBob Crawley23 Apr, 08:54
Re: Kaster SpherantTony Oz23 Apr, 08:53
Re: DIY Starfinder - a lockdown projectTibor Miseta22 Apr, 22:07
Kaster SpherantRafael C. Caruso22 Apr, 17:25
Re: Fulford Estate Collection - Online Auction Apr22-25Tony Oz22 Apr, 14:52
Re: Fulford Estate Collection - Online Auction Apr22-25Eric van der Veen22 Apr, 10:25
Fulford Estate Collection - Online Auction Apr22-25John Turanin22 Apr, 00:07
Re: Vulcan airborne sight reduction form?Eric van der Veen20 Apr, 20:24
Re: Vulcan airborne sight reduction form?David Pike20 Apr, 18:36
Re: A Diy E6-B?Gary LaPook20 Apr, 06:14
Re: A Diy E6-B?Gary LaPook20 Apr, 05:52
Re: A Diy E6-B?Gary LaPook20 Apr, 05:46
Re: Davis MK15 light mod possible?Paul Dolkas20 Apr, 05:07
Re: A Diy E6-B?Gary LaPook20 Apr, 05:01
Re: Wind Velocity from Three DriftsGary LaPook20 Apr, 00:17
Re: Wind Velocity from Three DriftsGary LaPook19 Apr, 23:41
Re: Wind Velocity from Three DriftsBill Ritchie19 Apr, 16:09
Re: Wind Velocity from Three DriftsTony Oz19 Apr, 11:00
Re: Wind Velocity from Three DriftsGary LaPook18 Apr, 21:14
Re: Wind Velocity from Three DriftsBill Ritchie18 Apr, 09:31
Re: Vulcan airborne sight reduction form?Eric van der Veen17 Apr, 16:08
2102-D, Crowding at High Declinations, WorkaroundDavid Iwancio17 Apr, 07:34
Re: A Sun-compass landfall?Gary LaPook17 Apr, 06:35
Re: Another "Office Hours" session, 4pm Eastern (2000 UT)David Pike16 Apr, 15:47
Re: A Diy E6-B?David Pike16 Apr, 15:17
Re: A Diy E6-B?David Pike16 Apr, 15:10
Re: A Diy E6-B?David Pike16 Apr, 14:56
Re: A Sun-compass landfall?Tony Oz16 Apr, 11:36
Re: A Diy E6-B?Tony Oz16 Apr, 08:09
Re: A Diy E6-B?Gary LaPook16 Apr, 08:03
Re: A Sun-compass landfall?Gary LaPook16 Apr, 08:01
Re: A Diy E6-B?Tony Oz16 Apr, 08:01
Unlike in ‘Lord of the Flies’David Pike16 Apr, 07:36
Re: A Sun-compass landfall?David Pike16 Apr, 07:21
Re: A Diy E6-B?David Pike16 Apr, 07:00
Re: A Sun-compass landfall?Gary LaPook16 Apr, 05:37
Re: A Sun-compass landfall?Gary LaPook16 Apr, 05:27
Another "Office Hours" session, 4pm Eastern (2000 UT)Frank Reed16 Apr, 03:51
Prince Philip championed GPS as Master of Trinity HouseRichard B. Langley16 Apr, 01:56
Re: A Diy E6-B?Gary LaPook15 Apr, 23:36
Re: A Diy E6-B?Gary LaPook15 Apr, 23:24
GHA of the Sun is easy todayFrank Reed15 Apr, 17:00
Re: A Diy E6-B?David Pike15 Apr, 07:47
Re: A Diy E6-B?Gary LaPook15 Apr, 03:54
Re: Vulcan airborne sight reduction form?David Pike14 Apr, 21:21
Re: Vulcan airborne sight reduction form?Eric van der Veen14 Apr, 19:35
Re: Vulcan airborne sight reduction form?David Pike14 Apr, 17:01
Re: A Diy E6-B?Tony Oz14 Apr, 08:18
Re: A Diy E6-B?Paul Hirose14 Apr, 00:00
Fulford Nav Collection - Upcoming Estate SaleJohn Turanin13 Apr, 23:18
Re: Vulcan airborne sight reduction form?Eric van der Veen13 Apr, 21:40
Re: Vulcan airborne sight reduction form?David Pike13 Apr, 18:00
Re: A Diy E6-B?David Pike13 Apr, 17:57
Re: A Diy E6-B?Tony Oz13 Apr, 15:19
Étoile du Roy at Basque coastAndrés Ruiz13 Apr, 11:38
Vulcan airborne sight reduction form?Eric van der Veen13 Apr, 09:58
Re: A Diy E6-B?David Pike13 Apr, 08:28
Davis MK15 light mod possible?Darcy Paul12 Apr, 19:14
A Diy E6-B?Tony Oz12 Apr, 15:47
Re: A Sun-compass landfall?Tony Oz12 Apr, 12:21
Re: A Sun-compass landfall?David Pike12 Apr, 08:02
Re: A Sun-compass landfall?David Pike12 Apr, 07:56
Re: A Sun-compass landfall?Geoffrey Kolbe12 Apr, 04:40
Re: Online "Office Hours" meeting in two days (Sunday, 2000 UT)Frank Reed11 Apr, 18:40
Re: A Sun-compass landfall?David Pike11 Apr, 18:22
Re: Online "Office Hours" meeting in two days (Sunday, 2000 UT)Alan S11 Apr, 16:52
Re: A Sun-compass landfall?David Pike11 Apr, 16:44
Re: A Sun-compass landfall?Geoffrey Kolbe11 Apr, 07:20
Re: Online "Office Hours" meeting in two days (Sunday, 2000 UT)Frank Reed11 Apr, 05:40
Re: A Sun-compass landfall?David Pike10 Apr, 13:25
Online "Office Hours" meeting in two days (Sunday, 2000 UT)Frank Reed9 Apr, 16:38
Re: A Sun-compass landfall?Tony Oz9 Apr, 12:10
Re: A Sun-compass landfall?David Pike9 Apr, 08:28
Re: Mathew Flinders Charts.Peter Blaskett8 Apr, 20:05
Re: A Sun-compass landfall?Gary LaPook8 Apr, 17:51
A Sun-compass landfall?Tony Oz8 Apr, 13:55
Re: Time Sight and Ex-Meridian by BygraveGreg Rudzinski8 Apr, 12:56
Re: Time Sight and Ex-Meridian by BygraveTony Oz8 Apr, 07:29
Re: Matthew Flinders ChartsPeter Blaskett8 Apr, 06:33
Re: Mathew Flinders Charts.John Brown8 Apr, 04:21
Re: Matthew Flinders ChartsGary LaPook8 Apr, 00:44
Re: Time Sight and Ex-Meridian by BygraveLars Bergman7 Apr, 21:27
Re: Time Sight and Ex-Meridian by BygraveBrian Walton7 Apr, 07:56
Re: Matthew Flinders ChartsDavid Pike7 Apr, 06:59
Re: Matthew Flinders ChartsPeter Blaskett7 Apr, 04:26
Re: Time Sight and Ex-Meridian by BygraveGreg Rudzinski6 Apr, 23:07
Re: Time Sight and Ex-Meridian by BygraveTony Oz6 Apr, 15:59
Re: Time Sight and Ex-Meridian by BygraveGreg Rudzinski6 Apr, 14:33
Time Sight and Ex-Meridian by BygraveBrian Walton6 Apr, 09:49
Re: Matthew Flinders ChartsDavid Pike5 Apr, 18:20
Royal Institute of Navigation Free Online SeminarDavid Pike5 Apr, 11:40
Re: Matthew Flinders ChartsDavid Pike4 Apr, 08:29
Re: Matthew Flinders ChartsDavid Pike4 Apr, 08:07
Re: Matthew Flinders ChartsMurray Peake4 Apr, 07:27
Re: A series of articles appearing in Ocean NavigatorAlan S4 Apr, 02:53
Matthew Flinders ChartsPeter Blaskett4 Apr, 01:10
Re: A series of articles appearing in Ocean NavigatorAl Stewart4 Apr, 00:49
Re: A series of articles appearing in Ocean NavigatorEd Hlywa4 Apr, 00:43
Re: A series of articles appearing in Ocean NavigatorGreg Rudzinski4 Apr, 00:29
Backpackers discover the NocturnalEd Popko3 Apr, 22:21
Re: U.S. Navy Declares Gps Obsolete, Celestial The FutureDavid C3 Apr, 21:12
A series of articles appearing in Ocean NavigatorAlan S3 Apr, 20:42
Re: U.S. Navy Declares Gps Obsolete, Celestial The FutureDon Seltzer3 Apr, 20:09
Re: Shooting my first LunarsHuub Robroek3 Apr, 19:52
Re: Shooting my first LunarsLars Bergman3 Apr, 13:47
Re: U.S. Navy Declares Gps Obsolete, Celestial The FutureFred Hebard3 Apr, 09:36
Re: U.S. Navy Declares Gps Obsolete, Celestial The FutureDon E. Bray2 Apr, 20:43
Re: U.S. Navy Declares Gps Obsolete, Celestial The FutureDoug Faunt2 Apr, 19:13
Re: USNO Clone as an "under the hood" CN engine for a flight simulator?Frank Reed2 Apr, 18:42
Re: U.S. Navy Declares Gps Obsolete, Celestial The FutureDoug Faunt2 Apr, 16:14
Re: U.S. Navy Declares Gps Obsolete, Celestial The FutureDon Seltzer2 Apr, 16:08
Re: U.S. Navy Declares Gps Obsolete, Celestial The FutureLu Abel2 Apr, 16:07
Re: U.S. Navy Declares Gps Obsolete, Celestial The FutureDustin Baenen2 Apr, 15:59
Re: U.S. Navy Declares Gps Obsolete, Celestial The FutureFred Hebard2 Apr, 13:54
Re: U.S. Navy Declares Gps Obsolete, Celestial The FutureAlan S1 Apr, 23:16
Re: U.S. Navy Declares Gps Obsolete, Celestial The FutureDavid Pike1 Apr, 19:16
Re: U.S. Navy Declares Gps Obsolete, Celestial The FutureBruce Cutting1 Apr, 19:04
Re: U.S. Navy Declares Gps Obsolete, Celestial The FutureGreg Rudzinski1 Apr, 17:09
U.S. Navy Declares Gps Obsolete, Celestial The FutureJohn Carbone1 Apr, 12:15

Index includes 163 messages.

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