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

April, 2015

Index includes 307 messages. Sorted by message ID, in descending order.

                    
Re: Backup Celestial Navigation KitGreg Rudzinski30 Apr 2015, 23:23
Re: Bombay SunsetGreg Rudzinski30 Apr 2015, 22:52
Re: Bombay SunsetRandall Morrow30 Apr 2015, 19:47
Backup Celestial Navigation KitRobert VanderPol II30 Apr 2015, 22:10
Re: Bombay SunsetCarly Butler30 Apr 2015, 18:50
Re: Research of a Free EXTENDED PRECISION Calculator Softwaretoconvert radians into degreesRobert Bernecky30 Apr 2015, 12:32
Re: Advancing the LOPJohn Karl30 Apr 2015, 01:32
Re: Research of a Free EXTENDED PRECISION CalculatorSoftware toconvert radians into degreesHanno Ix29 Apr 2015, 23:50
Re: Bombay SunsetKen Gebhart29 Apr 2015, 23:21
Re: Bombay SunsetJackson McDonald29 Apr 2015, 21:51
Re: Rent a sextant?Samuel L29 Apr 2015, 21:09
Bombay SunsetGreg Rudzinski29 Apr 2015, 18:31
Re: Howgozit chartBob Goethe29 Apr 2015, 18:44
Re: Research of a Free EXTENDED PRECISIONCalculatorSoftwaretoconvert radians into degreesAntoine Couëtte29 Apr 2015, 19:13
Re: That darned old cocked hatEd Popko28 Apr 2015, 20:30
Re: Research of a Free EXTENDED PRECISION CalculatorSoftwaretoconvert radians into degreesAndrés Ruiz29 Apr 2015, 18:21
Re: Research of a Free EXTENDED PRECISION CalculatorSoftwaretoconvert radians into degreesAndrés Ruiz29 Apr 2015, 18:15
Re: Research of a Free EXTENDED PRECISION Calculator Softwaretoconvert radians into degreesPaul Hirose29 Apr 2015, 17:06
Re: Research of a Free EXTENDED PRECISION CalculatorSoftware toconvert radians into degreesMarcelo S29 Apr 2015, 17:05
Research of a Free EXTENDED PRECISION Calculator Software toconvert radians into degreesAntoine Couëtte29 Apr 2015, 13:09
Re: Rent a sextant?Rommel John Miller29 Apr 2015, 03:19
Rent a sextant?Samuel L29 Apr 2015, 00:12
Re: Directly accessing post by ID numberFrank Reed28 Apr 2015, 23:33
Re: Howgozit chartGary LaPook28 Apr 2015, 23:31
Directly accessing post by ID numberBill B28 Apr 2015, 22:45
Re: Sight Tube vs. 4x ScopeAndrés Ruiz28 Apr 2015, 19:48
Re: Howgozit chartGary LaPook28 Apr 2015, 18:07
Re: Sight Tube vs. 4x ScopeGreg Rudzinski28 Apr 2015, 17:50
Re: Howgozit chartGary LaPook28 Apr 2015, 18:13
Sight Tube vs. 4x ScopeGreg Rudzinski28 Apr 2015, 17:12
Re: Advancing the LOPDave Walden28 Apr 2015, 12:03
Re: Advancing the LOPJohn Brown28 Apr 2015, 10:12
Re: Advancing the LOPGary LaPook28 Apr 2015, 07:43
Re: Art and NavigationPaul Hirose28 Apr 2015, 06:12
Re: Advancing the LOPHerbert Prinz28 Apr 2015, 03:37
Re: Advancing the LOPBob Goethe27 Apr 2015, 23:05
Re: Art and NavigationCarly Butler27 Apr 2015, 20:48
Re: Advancing the LOPJohn Karl27 Apr 2015, 19:17
Re: Advancing the LOPDavid Fleming27 Apr 2015, 20:04
Re: Art and NavigationGreg Rudzinski27 Apr 2015, 19:07
Re: Advancing the LOPFrank Reed27 Apr 2015, 18:35
Re: Art and NavigationCarly Butler27 Apr 2015, 13:33
Re: Advancing the LOPDavid Fleming27 Apr 2015, 17:27
Re: Advancing the LOPChristophe C.27 Apr 2015, 09:50
Re: Advancing the LOPSean C27 Apr 2015, 10:24
Re: Advancing the LOPRobert Bernecky27 Apr 2015, 12:39
Howgozit chartBob Goethe27 Apr 2015, 06:54
Re: Advancing the LOPGary LaPook27 Apr 2015, 06:02
Re: Advancing the LOPGary LaPook27 Apr 2015, 05:59
Re: History of DarienHerbert Prinz27 Apr 2015, 04:36
Re: Art and NavigationGreg Rudzinski27 Apr 2015, 05:54
Re: Advancing the LOPHerbert Prinz27 Apr 2015, 05:50
Re: Advancing the LOPDavid Fleming27 Apr 2015, 03:13
Advancing the LOPBob Goethe27 Apr 2015, 00:35
Re: Art and NavigationCarly Butler26 Apr 2015, 22:47
Intermediate Celestial NavigationFrank Reed26 Apr 2015, 22:08
Re: History of DarienDave Walden25 Apr 2015, 12:18
Re: History of DarienDave Walden25 Apr 2015, 12:03
Re: Historical Tide DataAntoine Couëtte25 Apr 2015, 06:35
History of DarienHerbert Prinz25 Apr 2015, 01:12
Re: Floating mirror correctionRandall Morrow24 Apr 2015, 15:37
Re: Floating mirror correctionRandall Morrow24 Apr 2015, 14:11
Re: Longitude by lunars during solar eclipsePeter Hakel23 Apr 2015, 17:57
Re: Floating mirror correctionGreg Rudzinski23 Apr 2015, 16:20
Re: Floating mirror correctionKen Muldrew23 Apr 2015, 02:34
Floating mirror correctionFrank Reed23 Apr 2015, 01:52
Sextant & Artificial Horizon vs. Bubble OctantGreg Rudzinski23 Apr 2015, 00:18
Re: Historical Tide DataAndrés Ruiz22 Apr 2015, 19:16
Re: Floating mirrorFrank Reed22 Apr 2015, 18:45
Re: Accuracy of the first Nautical AlmanacsFrank Reed22 Apr 2015, 18:20
Re: Accuracy of the first Nautical AlmanacsBob Goethe22 Apr 2015, 16:15
Re: 4-digit Circular SliderulesHewitt Schlereth22 Apr 2015, 16:40
Re: Demonstrating sextants to the publicLu Abel22 Apr 2015, 01:21
Re: Accuracy of the first Nautical AlmanacsFrank Reed22 Apr 2015, 01:31
Re: Jupiter-Venus "distances"Frank Reed22 Apr 2015, 01:12
Re: Bygrave range of angles?Hanno Ix21 Apr 2015, 23:01
Re: 4-digit Circular SliderulesHanno Ix21 Apr 2015, 14:56
Re: Bygrave range of angles?Hanno Ix21 Apr 2015, 22:50
Re: 4-digit Circular SliderulesHanno Ix21 Apr 2015, 18:38
Re: Accuracy of the first Nautical AlmanacsJackson McDonald21 Apr 2015, 20:04
Re: Historical Tide DataJackson McDonald21 Apr 2015, 19:55
Re: Bygrave range of angles?Gary LaPook21 Apr 2015, 19:50
Accuracy of the first Nautical AlmanacsDon Seltzer21 Apr 2015, 17:35
Re: Celestial Navigation at NEAFTom Sult21 Apr 2015, 17:05
Re: Longitude by lunars during solar eclipsePiero Neuhold21 Apr 2015, 18:33
Re: Floating mirrorWolfgang Hasper21 Apr 2015, 16:04
Re: Demonstrating sextants to the publicBill B21 Apr 2015, 16:14
Re: Bygrave range of angles?Hanno Ix21 Apr 2015, 16:34
Re: 4-digit Circular SliderulesHewitt Schlereth21 Apr 2015, 15:43
Re: 4-digit Circular SliderulesRobert VanderPol II21 Apr 2015, 11:45
Re: Bygrave range of angles?Gary LaPook21 Apr 2015, 08:31
Demonstrating sextants to the publicDavid Pike21 Apr 2015, 10:55
Re: Bygrave range of angles?Francis Upchurch21 Apr 2015, 05:23
Re: Floating mirrorPeter Monta21 Apr 2015, 02:44
Re: 4-digit Circular SliderulesGreg Rudzinski21 Apr 2015, 01:07
Re: 4-digit Circular SliderulesHanno Ix21 Apr 2015, 00:00
Tripod Mirror Artificial HorizonEd Popko20 Apr 2015, 23:16
Re: Floating mirrorBrad Morris20 Apr 2015, 23:04
Re: Floating mirrorAlexandre Eremenko20 Apr 2015, 22:36
Re: Celestial Navigation at NEAFPaul Dolkas20 Apr 2015, 20:40
Re: Floating mirrorPaul Dolkas20 Apr 2015, 20:41
Re: Floating mirrorDave Walden20 Apr 2015, 20:44
Re: Clockmaker John Harrison vindicatedHanno Ix20 Apr 2015, 20:08
Re: Floating mirrorBrad Morris20 Apr 2015, 19:00
Re: Celestial Navigation at NEAFStephen N.G. Davies20 Apr 2015, 13:58
Re: Celestial Navigation at NEAFGary LaPook20 Apr 2015, 04:16
Bygrave range of angles?Hanno Ix20 Apr 2015, 18:53
Re: Floating mirrorDavid Pike20 Apr 2015, 18:36
Re: Floating mirrorAlexandre Eremenko20 Apr 2015, 16:04
Re: Floating mirrorPaul Dolkas20 Apr 2015, 15:56
Re: Floating mirrorGreg Rudzinski20 Apr 2015, 14:38
Floating mirrorDave Walden20 Apr 2015, 13:02
Re: Celestial Navigation at NEAFPaul Beckmann20 Apr 2015, 12:52
Re: Relative bearingsJohn Brown20 Apr 2015, 08:59
Re: Clockmaker John Harrison vindicatedGeoffrey Kolbe20 Apr 2015, 09:01
Re: Jupiter-Venus "distances"David Pike20 Apr 2015, 10:06
Re: A replica of the Hermione is coming to the U.S....Yves Robin-Jouan20 Apr 2015, 08:43
Re: Clockmaker John Harrison vindicatedRichard Dunn20 Apr 2015, 08:31
Re: Clockmaker John Harrison vindicatedBill Morris20 Apr 2015, 04:07
Re: Relative bearingsHenry Halboth20 Apr 2015, 04:56
Re: Celestial Navigation at NEAFStephen N.G. Davies20 Apr 2015, 03:31
Re: Celestial Navigation at NEAFBrad Morris20 Apr 2015, 02:31
Re: Pelorus restorationPaul Dolkas19 Apr 2015, 20:11
Re: Longitude by lunars during solar eclipseFrank Reed20 Apr 2015, 01:35
Re: Celestial Navigation at NEAFGreg Rudzinski19 Apr 2015, 19:19
Re: Pelorus restorationBill B19 Apr 2015, 17:13
Another fake Moon --this time from GreenwichFrank Reed19 Apr 2015, 16:41
Re: Clockmaker John Harrison vindicatedGeoffrey Kolbe19 Apr 2015, 16:16
Re: A replica of the Hermione is coming to the U.S....Andrés Ruiz19 Apr 2015, 15:42
Cel Nav prep for Marion-Bermuda RaceEd Popko19 Apr 2015, 14:58
Re: Relative bearingsJohn Brown19 Apr 2015, 06:50
Re: Celestial Navigation at NEAFHenry Halboth19 Apr 2015, 04:52
Re: Brown-Nassau graphic computerRobert VanderPol II19 Apr 2015, 04:04
Re: Relative bearingsHenry Halboth19 Apr 2015, 04:37
Re: Cellphone camera as sextantRobert VanderPol II19 Apr 2015, 04:06
Jupiter-Venus "distances"Frank Reed19 Apr 2015, 03:13
Clockmaker John Harrison vindicatedEd Popko19 Apr 2015, 00:54
Re: Celestial Navigation at NEAFFrank Reed18 Apr 2015, 23:16
Re: Celestial Navigation at NEAFBob Goethe18 Apr 2015, 22:27
Re: Celestial Navigation at NEAFGreg Rudzinski18 Apr 2015, 22:22
Re: Celestial Navigation at NEAFLu Abel18 Apr 2015, 22:05
Re: Relative bearingsBob Goethe18 Apr 2015, 21:52
Re: Celestial Navigation at NEAFBruce J. Pennino18 Apr 2015, 21:23
Celestial Navigation at NEAFRobin Stuart18 Apr 2015, 19:39
Re: Brown-Nassau graphic computerHarri Ojanen18 Apr 2015, 19:09
Re: Relative bearingsHenry Halboth18 Apr 2015, 18:41
Longitude by lunars during solar eclipsePiero Neuhold18 Apr 2015, 15:13
Re: Bris sextantFrank Reed18 Apr 2015, 18:35
Re: Pelorus restorationMarty Lyons18 Apr 2015, 15:29
Bris sextantFrancis Upchurch18 Apr 2015, 08:34
Re: Sea level defines EmpireGary LaPook17 Apr 2015, 22:54
Pelorus restorationBill B17 Apr 2015, 19:01
Re: Cellphone camera as sextantGreg Rudzinski17 Apr 2015, 16:17
Re: Kickstarter for John Manjiro bookFrank Reed17 Apr 2015, 17:13
Re: Brown-Nassau graphic computerFrancis Upchurch17 Apr 2015, 17:28
Re: Relative bearingsGary LaPook17 Apr 2015, 17:33
Re: Kickstarter for John Manjiro bookHerbert Prinz17 Apr 2015, 15:25
Re: Relative bearingsDavid Pike17 Apr 2015, 09:28
Re: Cellphone camera as sextantRobert VanderPol II17 Apr 2015, 12:59
Re: Brown-Nassau graphic computerRobert VanderPol II17 Apr 2015, 06:05
Kickstarter for John Manjiro bookFrank Reed16 Apr 2015, 22:28
Re: Relative bearingsJohn Brown16 Apr 2015, 21:17
Re: Historical Tide DataFrank Reed16 Apr 2015, 20:50
Re: Another movie sextantDon Seltzer16 Apr 2015, 20:54
Re: Historical Tide DataLu Abel16 Apr 2015, 20:26
Re: Historical Tide DataFrank Reed16 Apr 2015, 19:36
Historical Tide DataAntoine Couëtte16 Apr 2015, 19:06
Re: Another movie sextantFrank Reed16 Apr 2015, 17:59
Re: Timing Upper Limb Sunset by CameraBill B16 Apr 2015, 17:35
Re: Relative bearingsBill B16 Apr 2015, 17:28
Re: Another movie sextantJohn D. Howard16 Apr 2015, 15:04
Re: Relative bearingsGeoffrey Butt16 Apr 2015, 15:09
Re: Relative bearingsPaul Hirose16 Apr 2015, 04:06
Re: For Sale: Pub. 229, Volumes 1-6Frank Reed16 Apr 2015, 02:01
Re: For Sale: Pub. 229, Volumes 1-6Paul Beckmann16 Apr 2015, 01:43
For Sale: Pub. 229, Volumes 1-6R. M. Maxwell15 Apr 2015, 23:38
Re: Impressionism began at 7:35 a.m. on Nov. 13, 1872David Pike15 Apr 2015, 22:44
More Movie BitsDavid Pike15 Apr 2015, 22:27
Re: Relative bearingsBill B15 Apr 2015, 19:31
Re: Another movie sextantBruce J. Pennino15 Apr 2015, 18:22
Re: Another movie sextantFrank Reed15 Apr 2015, 18:35
Re: Impressionism began at 7:35 a.m. on Nov. 13, 1872Greg Rudzinski15 Apr 2015, 18:18
Re: Relative bearingsBill B15 Apr 2015, 18:11
Re: Another movie sextantGary LaPook15 Apr 2015, 15:30
Re: Relative bearingsGary LaPook15 Apr 2015, 15:29
Re: Another movie sextantDon Seltzer15 Apr 2015, 13:14
Re: Impressionism began at 7:35 a.m. on Nov. 13, 1872Francis Upchurch15 Apr 2015, 06:30
Re: Relative bearingsDavid Pike15 Apr 2015, 07:31
Another movie sextantFrank Reed15 Apr 2015, 03:49
Re: Relative bearingsLu Abel15 Apr 2015, 01:02
Re: Relative bearingsGreg Rudzinski15 Apr 2015, 00:39
Re: Relative bearingsBill B14 Apr 2015, 23:20
Re: Relative bearingsGreg Rudzinski14 Apr 2015, 22:37
Relative bearingsBill B14 Apr 2015, 21:34
Re: Impressionism began at 7:35 a.m. on Nov. 13, 1872Bill B14 Apr 2015, 16:46
Re: Impressionism began at 7:35 a.m. on Nov. 13, 1872Greg Rudzinski14 Apr 2015, 15:46
Re: Impressionism began at 7:35 a.m. on Nov. 13, 1872David Pike14 Apr 2015, 08:53
Brown-Nassau Spherical computerFrancis Upchurch14 Apr 2015, 05:26
Re: Impressionism began at 7:35 a.m. on Nov. 13, 1872Francis Upchurch14 Apr 2015, 04:57
Re: Octants in Winslow Homer's "8 Bells" PaintingFrank Reed13 Apr 2015, 19:19
Re: Impressionism began at 7:35 a.m. on Nov. 13, 1872Greg Rudzinski13 Apr 2015, 16:06
Re: Octants in Winslow Homer's "8 Bells" PaintingPhilip Lange13 Apr 2015, 14:35
Re: Great Circle puzzleAntoine Couëtte13 Apr 2015, 13:30
Collins radio sextant 1952- Weems commentsDave Walden13 Apr 2015, 13:28
Re: Impressionism began at 7:35 a.m. on Nov. 13, 1872Francis Upchurch13 Apr 2015, 09:01
Re: Impressionism began at 7:35 a.m. on Nov. 13, 1872David Pike13 Apr 2015, 08:21
Re: Impressionism began at 7:35 a.m. on Nov. 13, 1872Greg Rudzinski13 Apr 2015, 05:56
Re: Impressionism began at 7:35 a.m. on Nov. 13, 1872Frank Reed13 Apr 2015, 04:20
Re: Impressionism began at 7:35 a.m. on Nov. 13, 1872Greg Rudzinski13 Apr 2015, 03:40
Re: Impressionism began at 7:35 a.m. on Nov. 13, 1872David Pike13 Apr 2015, 00:52
Re: Great Circle puzzleAndrew Nikitin13 Apr 2015, 00:19
Re: Modern Celestial / GPS JammingSean C12 Apr 2015, 09:25
Re: Octants in Winslow Homer's "8 Bells" PaintingHewitt Schlereth12 Apr 2015, 04:46
Re: Octants in Winslow Homer's "8 Bells" PaintingAndrés Ruiz12 Apr 2015, 07:27
Re: Great Circle puzzleAntoine Couëtte12 Apr 2015, 06:11
Re: Great Circle puzzleAndrew Nikitin11 Apr 2015, 22:28
Re: Octants in Winslow Homer's "8 Bells" PaintingAlan S11 Apr 2015, 20:46
Re: Octants in Winslow Homer's "8 Bells" PaintingDon Seltzer11 Apr 2015, 20:36
Re: Impressionism began at 7:35 a.m. on Nov. 13, 1872Greg Rudzinski11 Apr 2015, 19:57
Re: Sea level defines EmpireLu Abel11 Apr 2015, 18:13
Re: Octants in Winslow Homer's "8 Bells" PaintingDon Seltzer11 Apr 2015, 17:01
Re: Octants in Winslow Homer's "8 Bells" PaintingHewitt Schlereth11 Apr 2015, 17:15
Octants in Winslow Homer's "8 Bells" PaintingEd Popko11 Apr 2015, 15:43
Re: Impressionism began at 7:35 a.m. on Nov. 13, 1872Frank Atkins11 Apr 2015, 08:06
Re: Impressionism began at 7:35 a.m. on Nov. 13, 1872Andrés Ruiz11 Apr 2015, 13:45
Re: Impressionism began at 7:35 a.m. on Nov. 13, 1872Francis Upchurch11 Apr 2015, 05:55
Re: Strange result from MICAPaul Hirose10 Apr 2015, 20:21
Re: Impressionism began at 7:35 a.m. on Nov. 13, 1872Bill B10 Apr 2015, 19:42
Re: Sea level defines EmpireSamuel L10 Apr 2015, 18:44
Re: Sea level defines EmpireJackson McDonald10 Apr 2015, 12:51
Re: Impressionism began at 7:35 a.m. on Nov. 13, 1872Bob Goethe10 Apr 2015, 15:51
Re: New Artificial Horizon Finally TestedDavid Pike10 Apr 2015, 09:15
Re: Impressionism began at 7:35 a.m. on Nov. 13, 1872David Pike10 Apr 2015, 08:40
Re: Sea level defines EmpireGary LaPook10 Apr 2015, 06:22
Re: Sea level defines EmpireStephen N.G. Davies10 Apr 2015, 06:16
Re: Impressionism began at 7:35 a.m. on Nov. 13, 1872Andrés Ruiz10 Apr 2015, 06:13
Re: Sea level defines EmpireLu Abel9 Apr 2015, 23:13
Re: Sea level defines EmpireLu Abel9 Apr 2015, 23:15
Re: Strange result from MICASean C10 Apr 2015, 04:53
Re: Sea level defines EmpireFrank Reed9 Apr 2015, 20:35
Re: Sea level defines EmpireHerbert Prinz9 Apr 2015, 20:16
Re: Impressionism began at 7:35 a.m. on Nov. 13, 1872Frank Reed9 Apr 2015, 20:08
Re: Sea level defines EmpireGary LaPook9 Apr 2015, 19:09
Re: Strange result from MICAPaul Hirose9 Apr 2015, 19:40
Impressionism began at 7:35 a.m. on Nov. 13, 1872Don Seltzer9 Apr 2015, 19:57
Re: Sea level defines EmpireBill B9 Apr 2015, 18:21
Re: Sea level defines EmpireLu Abel9 Apr 2015, 17:17
Re: New Artificial Horizon Finally TestedMarty Lyons9 Apr 2015, 11:23
Re: Sea level defines EmpireUNK9 Apr 2015, 07:00
Sea level defines EmpireFrank Reed9 Apr 2015, 05:58
Re: Strange result from MICAHerbert Prinz9 Apr 2015, 01:52
Re: Air Almanac users?Phil Rider8 Apr 2015, 19:08
C. Plath #14809 for SaleHewitt Schlereth7 Apr 2015, 22:20
Re: Timing Upper Limb Sunset by CameraGreg Rudzinski8 Apr 2015, 17:01
Strange result from MICASean C8 Apr 2015, 04:48
Re: Air Almanac users?Gary LaPook8 Apr 2015, 06:38
Re: New Artificial Horizon Finally TestedDavid Pike8 Apr 2015, 00:52
Re: Air Almanac users?David Pike8 Apr 2015, 00:39
Re: Timing Upper Limb Sunset by CameraGreg Rudzinski7 Apr 2015, 23:13
Re: Air Almanac users?Gary LaPook8 Apr 2015, 00:19
Re: Timing Upper Limb Sunset by CameraGreg Rudzinski7 Apr 2015, 22:25
Re: Air Almanac users?Tom Sult7 Apr 2015, 22:30
Re: New Artificial Horizon Finally TestedBob Goethe7 Apr 2015, 20:12
Re: Timing Upper Limb Sunset by CameraBill B7 Apr 2015, 20:47
Air Almanac users?Frank Reed7 Apr 2015, 20:53
New Artificial Horizon Finally TestedDavid Pike7 Apr 2015, 19:20
Re: Determing the bearing off a celestial object.David Pike7 Apr 2015, 19:14
Re: Brown-Nassau analog calculator at SmithsonianGary LaPook7 Apr 2015, 06:06
Brown-Nassau analog calculator at SmithsonianFrancis Upchurch7 Apr 2015, 00:41
Re: LHA and Meridian AnglesBob Goethe6 Apr 2015, 14:30
Re: Folger Library Longitude ExhibitJackson McDonald6 Apr 2015, 13:40
Re: Folger Library Longitude ExhibitRichard Dunn6 Apr 2015, 10:52
Re: Anyone seen one of these before?David Pike6 Apr 2015, 09:01
False stars and comet flybysFrank Reed6 Apr 2015, 05:58
Re: Folger Library Longitude ExhibitUNK6 Apr 2015, 03:17
Re: Longitude by MintakaRobert Reeder6 Apr 2015, 02:55
Re: Anyone seen one of these before?Bruce J. Pennino5 Apr 2015, 23:45
Re: LHA and Meridian AnglesJohn D. Howard5 Apr 2015, 22:01
Re: Anyone seen one of these before?Stephen N.G. Davies5 Apr 2015, 22:51
Folger Library Longitude ExhibitJackson McDonald5 Apr 2015, 21:42
Re: Anyone seen one of these before?Frank Reed5 Apr 2015, 20:47
Re: Anyone seen one of these before?Brad Morris5 Apr 2015, 19:28
Re: Anyone seen one of these before?Brad Morris5 Apr 2015, 19:27
Re: Anyone seen one of these before?David Pike5 Apr 2015, 19:16
Re: Anyone seen one of these before?Bill Morris5 Apr 2015, 18:54
Re: C. Plath #14809 for SaleHewitt Schlereth5 Apr 2015, 14:31
Re: Anyone seen one of these before?Greg Rudzinski5 Apr 2015, 14:44
Re: Anyone seen one of these before?Stephen N.G. Davies5 Apr 2015, 13:14
Anyone seen one of these before?David Pike5 Apr 2015, 08:26
LHA and Meridian AnglesGeoffrey Kolbe5 Apr 2015, 07:51
Re: C. Plath #14809 for SaleDavid Pike5 Apr 2015, 08:14
C. Plath #14809 for SaleHewitt Schlereth5 Apr 2015, 02:34
Re: LHA and Meridian AnglesHenry Halboth4 Apr 2015, 05:53
Re: LHA and Meridian AnglesHewitt Schlereth3 Apr 2015, 22:23
Re: LHA and Meridian AnglesFrank Reed3 Apr 2015, 19:14
Re: Determing the bearing off a celestial object.UNK3 Apr 2015, 04:56
Re: Determing the bearing off a celestial object.Bruce J. Pennino3 Apr 2015, 03:18
Re: LHA and Meridian AnglesGary LaPook3 Apr 2015, 00:45
LHA and Meridian AnglesBob Goethe2 Apr 2015, 20:02
Re: Art and NavigationPaul Dolkas2 Apr 2015, 21:42
Re: Determing the bearing off a celestial object.Paul Dolkas1 Apr 2015, 19:10
Re: Determing the bearing off a celestial object.Bill B1 Apr 2015, 18:33
Re: Determing the bearing off a celestial object.John Brown1 Apr 2015, 16:46
Re: Determing the bearing off a celestial object.Ridge White1 Apr 2015, 13:26
Re: Brown-Nassau spherical computerUNK1 Apr 2015, 07:02
Re: Determing the bearing off a celestial object.Gary LaPook1 Apr 2015, 07:38
Re: Determing the bearing off a celestial object.Francis Upchurch1 Apr 2015, 06:34

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