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

March, 2021

Index includes 273 messages. Sorted alphabetically by subject.

                    
A-10A WWII Airforce Sextant for parts/repairSimon Horwith31 Mar, 16:49
A10 bubble sextant bulb holderK McGrath7 Mar, 10:37
Re: A10 bubble sextant bulb holderJoshua Hunley7 Mar, 17:24
Re: A10 bubble sextant bulb holderBill Morris8 Mar, 23:06
AH: windproof shades materialIgor S.17 Mar, 16:38
Re: AH: windproof shades materialGreg Rudzinski17 Mar, 17:29
Re: AH: windproof shades materialModris Fersters17 Mar, 19:19
Re: AH: windproof shades materialIgor S.18 Mar, 22:52
Re: AH: windproof shades materialGary LaPook19 Mar, 06:55
Re: AH: windproof shades materialModris Fersters20 Mar, 14:57
Re: AH: windproof shades materialIgor S.22 Mar, 23:32
Re: AH: windproof shades materialBill Morris22 Mar, 23:56
Re: An All-Haversine Azimuth (from Lat, Dec and dLon alone)?Willi Strohl16 Mar, 09:27
Re: An All-Haversine Azimuth (from Lat, Dec and dLon alone)?Tony Oz17 Mar, 08:59
Re: Another surveying problemLars Bergman2 Mar, 15:38
Re: Another surveying problemMike Burkes2 Mar, 18:24
Re: Another surveying problemDavid Pike3 Mar, 13:53
Re: Another surveying problemRobert Bernecky3 Mar, 15:22
Re: Another surveying problemLars Bergman3 Mar, 22:31
Re: Another surveying problemDavid Pike6 Mar, 23:48
Re: Another surveying problemDavid Pike7 Mar, 20:11
Astrolabe AuctionBruce J. Pennino28 Mar, 01:55
Bausch and Lomb A8-A Aircraft bubble sextant F.S.Robert Swartz19 Mar, 02:48
Calculate GHA Aries in your headJoshua Hunley1 Mar, 17:02
Re: Calculate GHA Aries in your headJohn Baum1 Mar, 17:40
Re: Calculate GHA Aries in your headJoshua Hunley1 Mar, 18:12
Re: Calculate GHA Aries in your headGary LaPook1 Mar, 23:44
Re: Calculate GHA Aries in your headGary LaPook1 Mar, 23:46
Re: Calculate GHA Aries in your headGary LaPook1 Mar, 23:49
Re: Calculate GHA Aries in your headGeoffrey Kolbe2 Mar, 05:54
Re: Calculate GHA Aries in your headJoshua Hunley2 Mar, 21:28
Re: Calculate GHA Aries in your headTony Oz3 Mar, 18:35
Re: Calculate GHA Aries in your headFrank Reed3 Mar, 19:10
Re: Calculate GHA Aries in your headJoshua Hunley3 Mar, 21:23
Re: Calculate GHA Aries in your headBob Goethe3 Mar, 23:00
Re: Calculate GHA Aries in your headTony Oz4 Mar, 07:55
Re: Calculate GHA Aries in your headGary LaPook4 Mar, 08:44
Re: Calculate GHA Aries in your headGary LaPook4 Mar, 08:58
Re: Calculate GHA Aries/Some updates for web appsSean C2 Mar, 08:16
Re: Calculate GHA Aries/Some updates for web appsJoshua Hunley2 Mar, 20:44
Re: Calculate GHA Aries/Some updates for web appsSean C5 Mar, 02:43
Re: Calculate GHA Aries/Some updates for web appsJoshua Hunley5 Mar, 19:42
Calculate the declination of the Sun in your headDavid Pike3 Mar, 20:29
Re: Calculate the declination of the Sun in your headDavid Fleming3 Mar, 22:09
Re: Calculate the declination of the Sun in your headBob Goethe3 Mar, 23:08
Re: Calculate the declination of the Sun in your headJoshua Hunley4 Mar, 02:31
Re: Calculate the declination of the Sun in your headJoshua Hunley4 Mar, 02:53
Can you find Aries?Frank Reed29 Mar, 20:18
Capt. Sumner's First LOPBruce J. Pennino14 Mar, 19:02
Re: Capt. Sumner's First LOPBob Goethe14 Mar, 20:50
Re: Capt. Sumner's First LOPFrank Reed15 Mar, 17:48
Re: Capt. Sumner's First LOPBruce J. Pennino16 Mar, 17:24
Re: Cel Nav SimulatorEric van der Veen22 Mar, 23:22
Re: Cel Nav SimulatorTony Oz24 Mar, 15:40
Re: Cel Nav SimulatorEric van der Veen28 Mar, 16:06
Re: Celesticomp V (more pages from M Har ris’ book)Glen Swanson13 Mar, 10:16
Celesticomp V and other pocket computersGlen Swanson10 Mar, 10:47
Re: Celesticomp V and other pocket computersTony Oz10 Mar, 16:19
Re: Celesticomp V and other pocket computersGlen Swanson10 Mar, 17:04
Re: Celesticomp V and other pocket computersFrank Reed10 Mar, 18:16
Re: Celesticomp V and other pocket computersDave Walden10 Mar, 19:59
Re: Celesticomp V and other pocket computersTony Oz11 Mar, 12:21
Re: Celesticomp V and other pocket computersGlen Swanson11 Mar, 17:24
Re: Celesticomp V and other pocket computersTony Oz11 Mar, 20:46
Re: Celesticomp V and other pocket computersTony Oz12 Mar, 08:19
Re: Celesticomp V and other pocket computersGlen Swanson13 Mar, 09:56
Re: Celesticomp V instructionsDavid Arenburg8 Mar, 23:25
Re: Celesticomp V instructionsIan Gifford9 Mar, 10:45
Re: Celesticomp V instructionsDave Walden9 Mar, 12:13
Re: Celesticomp V instructionsJohn Rizzuto9 Mar, 14:05
Re: Celesticomp V instructionsIan Gifford9 Mar, 17:28
Re: Celesticomp V instructionsDavid Arenburg10 Mar, 11:03
Davis WorksheetsTracy Shrier11 Mar, 01:20
Re: Davis WorksheetsHerman Dekker11 Mar, 08:55
Re: Davis WorksheetsNoell Wilson14 Mar, 16:59
DipAlexandre Eremenko5 Mar, 17:23
Re: DipLu Abel5 Mar, 17:38
Re: DipAlexandre Eremenko5 Mar, 20:16
Re: DipBob Goethe7 Mar, 23:03
Re: DipDavid Fleming7 Mar, 23:50
Re: DipAlexandre Eremenko8 Mar, 00:33
Re: DipNick M8 Mar, 04:12
Re: DipFrank Reed9 Mar, 22:44
DIY Starfinder - a lockdown projectTibor Miseta2 Mar, 20:52
Re: DIY Starfinder - a lockdown projectRobert VanderPol II3 Mar, 03:37
Re: DIY Starfinder - a lockdown projectTony Oz3 Mar, 09:09
Re: DIY Starfinder - a lockdown projectTony Oz4 Mar, 08:14
Re: DIY Starfinder - a lockdown projectTibor Miseta4 Mar, 17:48
Re: DIY Starfinder - a lockdown projectEd Popko4 Mar, 22:42
Re: DIY Starfinder - a lockdown projectTony Oz5 Mar, 08:51
Re: DIY Starfinder - a lockdown projectMichalis Vaidanis6 Mar, 19:55
Re: DIY Starfinder - a lockdown projectTibor Miseta13 Mar, 23:12
Re: DIY Starfinder - a lockdown projectMichalis Vaidanis16 Mar, 19:35
DRAFT of 'A Perpetual Almanac for the Sun and Stars 2020-2050' (Using difference tables)Joshua Hunley7 Mar, 17:01
Ebbco Sextant infoHerman Dekker27 Mar, 14:36
Re: Ebbco Sextant infoGreg Rudzinski27 Mar, 16:41
Fifty thousand messages since 2006Frank Reed1 Mar, 19:44
Re: Fifty thousand messages since 2006Frank Reed2 Mar, 06:00
Free RIN Webinar: How the Aircraft Carriers Pilot in and out of PortsmouthDavid Pike23 Mar, 11:14
Free RIN Webinar: How the Aircraft Carriers Pilot in and out of PortsmouthDavid Pike23 Mar, 11:42
Re: Free RIN Webinar: How the Aircraft Carriers Pilot in and out of PortsmouthDavid Pike26 Mar, 19:39
Interstellar navigation with astrometryPeter Monta23 Mar, 19:42
Link A-12 Aircraft Bubble Sextant Reconditioned--F.S.Robert Swartz5 Mar, 00:27
Location of VenusBob Goethe11 Mar, 21:33
Re: Location of VenusFrank Reed12 Mar, 00:37
Re: Location of VenusFrank Reed12 Mar, 00:47
Military GPS Jamming Affects Commercial Aircraft (IEEE Spectrum)Mike Mayer5 Mar, 20:31
Moon's horns point North/SouthFrank Reed22 Mar, 00:50
Re: Moon's horns point North/SouthGeoffrey Kolbe22 Mar, 08:52
Re: Moon's horns point North/SouthDavid Pike22 Mar, 20:33
Navigating the RoyalsDavid Pike13 Mar, 20:26
Navigation by the MoonAlexandre Eremenko25 Mar, 01:55
Re: Navigation by the MoonFrank Reed25 Mar, 02:00
Re: Navigation by the MoonAlexandre Eremenko25 Mar, 03:29
Re: Navigation by the MoonTony Oz25 Mar, 13:45
Re: Navigation by the MoonAlexandre Eremenko25 Mar, 16:18
Re: Navigation by the MoonDavid Pike25 Mar, 20:32
Re: Navigation by the MoonGeoff Hitchcox27 Mar, 08:28
Re: Navigation by the MoonAlexandre Eremenko27 Mar, 16:52
Re: Navigation by the MoonAlexandre Eremenko27 Mar, 17:11
Re: Navigation by the MoonDavid Pike27 Mar, 21:43
Re: Navigation by the MoonFrank Reed30 Mar, 02:55
Re: Navigation by the MoonFrank Reed30 Mar, 03:42
Re: Navigation by the MoonGeoff Hitchcox30 Mar, 07:44
Navigation Progs from NewZealand.Herman Dekker11 Mar, 10:03
New versions of GPS Anti Spoof appsFrank Reed10 Mar, 22:21
Re: New versions of GPS Anti Spoof appsTony Oz11 Mar, 10:47
Non-navigational Star coordinatesModris Fersters3 Mar, 18:05
Re: Non-navigational Star coordinatesBill Ritchie4 Mar, 21:58
Re: Non-navigational Star coordinatesModris Fersters5 Mar, 09:02
Re: Non-navigational Star coordinatesDave Walden5 Mar, 19:45
Re: Non-navigational Star coordinatesModris Fersters6 Mar, 12:42
Re: Non-navigational Star coordinatesPaul Hirose6 Mar, 18:28
Re: Non-navigational Star coordinatesTibor Miseta6 Mar, 18:30
Re: Non-navigational Star coordinatesModris Fersters7 Mar, 17:29
Re: Non-navigational Star coordinatesPeter Blaskett27 Mar, 21:27
Re: Non-navigational Star coordinatesModris Fersters28 Mar, 18:58
Northeast US, eastern Canada: Space Station pass this eveningFrank Reed19 Mar, 22:52
Now all we need to do is to put scents on navigation aidsLu Abel6 Mar, 00:28
NY Times article on GPS vulnerabilitiesLu Abel18 Mar, 16:14
Re: NY Times article on GPS vulnerabilitiesDavid Pike18 Mar, 21:20
Re: NY Times article on GPS vulnerabilitiesDavid C19 Mar, 04:33
Re: NY Times article on GPS vulnerabilitiesJames F Campbell19 Mar, 12:44
Online "Office Hours" meeting NEXT Friday, March 12Frank Reed5 Mar, 19:43
Online meeting today 2000 UT (4pm EDT, 1pm PDT)Frank Reed26 Mar, 16:16
Re: Perihelion coming up in a few minutesAlexander Duytschaever11 Mar, 18:11
PlanispheresBob Goethe13 Mar, 19:06
Re: Plot Sheet GeneratorAlex L.23 Mar, 18:39
Re: Plot Sheet GeneratorTony Oz24 Mar, 07:53
Re: Plot Sheet GeneratorGary LaPook24 Mar, 18:49
Re: Plot Sheet GeneratorDavid Pike24 Mar, 21:23
Re: Plot Sheet GeneratorGary LaPook31 Mar, 07:20
Re: Push out laser cut plywood models from ChinaHuub Robroek1 Mar, 00:15
Re: Push out laser cut plywood models from ChinaDavid Pike1 Mar, 09:01
Re: Push out laser cut plywood models from ChinaHerman Dekker1 Mar, 17:47
Re: Push out laser cut plywood models from ChinaDavid Pike1 Mar, 19:00
Rare alignment of annual phenomenaFrank Reed10 Mar, 16:45
Re: Rare alignment of annual phenomenaRafael C. Caruso10 Mar, 23:59
Rare footage of radio sextantIgor S.26 Mar, 21:25
Royal Navy Revives Days Of Sail With Training On Tall ShipDavid Pike23 Mar, 10:45
Running down an Astro-Position LineDavid Pike13 Mar, 10:59
Re: Running down an Astro-Position LineAdrian F14 Mar, 17:10
Re: Running down an Astro-Position LineDavid Pike14 Mar, 18:51
Re: Running down an Astro-Position LineMichael Bradley14 Mar, 21:52
Re: Running down an Astro-Position LineDavid C15 Mar, 04:56
Re: Running down an Astro-Position LineGary LaPook15 Mar, 08:12
Re: Running down an Astro-Position LineDavid Pike15 Mar, 10:17
Re: Running down an Astro-Position LineGary LaPook15 Mar, 20:59
Re: Running down an Astro-Position LineBrian Walton15 Mar, 21:24
Re: Running down an Astro-Position LineDavid C15 Mar, 21:33
Re: Running down an Astro-Position LineBill Ritchie15 Mar, 23:38
Re: Running down an Astro-Position LineGary LaPook16 Mar, 07:51
Re: Running down an Astro-Position LineGary LaPook16 Mar, 09:21
Re: Running down an Astro-Position LineGary LaPook16 Mar, 10:27
Re: Running down an Astro-Position LineGary LaPook16 Mar, 11:01
Re: Running down an Astro-Position LineGary LaPook16 Mar, 11:05
Re: Running down an Astro-Position LineAdrian F16 Mar, 11:14
Re: Running down an Astro-Position LineTony Oz16 Mar, 17:32
Re: Running down an Astro-Position LineBill Ritchie16 Mar, 18:37
Re: Running down an Astro-Position LineGary LaPook16 Mar, 19:17
Re: Running down an Astro-Position LineGary LaPook16 Mar, 19:20
Re: Running down an Astro-Position LineGary LaPook16 Mar, 19:31
Re: Running down an Astro-Position LineDavid Pike16 Mar, 20:19
Re: Running down an Astro-Position LineMichael Bradley17 Mar, 09:33
Re: Running down an Astro-Position LineGary LaPook18 Mar, 07:22
Re: Running down an Astro-Position LineGary LaPook28 Mar, 19:27
Re: Running down an Astro-Position LineDavid Pike29 Mar, 18:43
Satellite navigation in reverseFrank Reed17 Mar, 20:19
Re: Sextant calibration accessoryFred Hebard8 Mar, 17:15
Shooting my first LunarsHuub Robroek22 Mar, 17:45
Re: Shooting my first LunarsFrank Reed30 Mar, 04:48
Re: Shooting my first LunarsHuub Robroek30 Mar, 23:03
Silvering mirrors with mercury-tin amalgamBill Morris20 Mar, 02:31
Re: Silvering mirrors with mercury-tin amalgamMurray Peake20 Mar, 07:52
Re: Silvering mirrors with mercury-tin amalgamGeoff Hitchcox20 Mar, 09:05
Re: Silvering mirrors with mercury-tin amalgamLars Bergman20 Mar, 11:08
Re: Silvering mirrors with mercury-tin amalgamDave Walden20 Mar, 12:36
Re: Silvering mirrors with mercury-tin amalgamDave Walden20 Mar, 12:41
Re: Silvering mirrors with mercury-tin amalgamDave Walden20 Mar, 12:59
Re: Silvering mirrors with mercury-tin amalgamNick M20 Mar, 13:17
Re: Silvering mirrors with mercury-tin amalgamJürgen Hoefeld20 Mar, 17:06
Re: Silvering mirrors with mercury-tin amalgamBill Morris20 Mar, 18:37
Some updates for web appsFrank Reed1 Mar, 19:40
Re: Stereographic Projection of the EclipticDavid Pike1 Mar, 11:15
Suez Canal – Great NewsDavid Pike29 Mar, 18:18
Re: Suez Canal – Great NewsGary LaPook29 Mar, 19:11
Re: Suez Canal – Great NewsFrank Reed29 Mar, 20:07
Sun northbound at one knotFrank Reed18 Mar, 05:09
Surface Mail from CanadaDavid Pike13 Mar, 11:35
Re: Surface Mail from CanadaBob Goethe13 Mar, 19:06
Re: Surface Mail from CanadaDavid C14 Mar, 03:45
Re: Surface Mail from CanadaDavid Iwancio16 Mar, 07:04
Re: Surveying problemLars Bergman2 Mar, 19:59
Re: Surveying problemMike Burkes3 Mar, 13:12
Telemeter/QuadrantPaul Saffo25 Mar, 17:37
Re: Telemeter/QuadrantJohn Clements25 Mar, 22:50
Re: Telemeter/QuadrantPaul Saffo28 Mar, 18:10
Re: Telemeter/QuadrantSean C28 Mar, 22:10
Re: Telemeter/QuadrantDoug Faunt29 Mar, 01:13
Re: Telemeter/QuadrantGary LaPook29 Mar, 06:04
Re: Telemeter/QuadrantGary LaPook29 Mar, 06:06
Re: Telemeter/QuadrantGary LaPook29 Mar, 06:09
The "B-17 Flying Fortress" game: any good as a CelNav simulator?Tony Oz30 Mar, 19:58
The Ancient Greek Antikythera MechanismEd Popko13 Mar, 13:48
Re: The Ancient Greek Antikythera MechanismChris Post13 Mar, 16:29
Re: The Ancient Greek Antikythera MechanismRafael C. Caruso13 Mar, 17:20
Re: The Ancient Greek Antikythera MechanismEd Popko13 Mar, 21:23
The Where's Amelia Earhart drama continuesEd Popko4 Mar, 14:17
Re: The Where's Amelia Earhart drama continuesDustin Baenen4 Mar, 22:46
Today's "Office Hours" postponed to MondayFrank Reed12 Mar, 17:05
Re: Today's "Office Hours" postponed to MondayFrank Reed15 Mar, 17:42
USNO Clone as an "under the hood" CN engine for a flight simulator?Tony Oz31 Mar, 15:50
Re: USNO Clone as an "under the hood" CN engine for a flight simulator?Dustin Baenen31 Mar, 16:42
Re: USNO Clone as an "under the hood" CN engine for a flight simulator?Tony Oz31 Mar, 17:29
Re: USNO Clone as an "under the hood" CN engine for a flight simulator?Dustin Baenen31 Mar, 20:40
Re: Wind Velocity from Three DriftsMike Burkes2 Mar, 18:43
Re: Wind Velocity from Three DriftsGary LaPook3 Mar, 08:48
Re: Wind Velocity from Three DriftsDavid Pike3 Mar, 16:06
Re: Wind Velocity from Three DriftsGary LaPook3 Mar, 18:26
Re: Wind Velocity from Three DriftsDavid Pike3 Mar, 19:46
Re: Wind Velocity from Three DriftsGary LaPook5 Mar, 09:34
Re: Wind Velocity from Three DriftsDavid Pike5 Mar, 21:07
Re: Wind Velocity from Three DriftsBrian Walton6 Mar, 11:26
Re: Wind Velocity from Three DriftsTony Oz7 Mar, 23:48
Re: Wind Velocity from Three DriftsDavid Pike8 Mar, 09:40
Re: Wind Velocity from Three DriftsGary LaPook8 Mar, 19:38
Re: Wind Velocity from Three DriftsDavid Pike8 Mar, 21:04
Re: Wind Velocity from Three DriftsGary LaPook8 Mar, 21:05
Re: Wind Velocity from Three DriftsEd Popko9 Mar, 12:03
Re: Wind Velocity from Three DriftsTony Oz9 Mar, 12:33
Re: Wind Velocity from Three DriftsDavid Pike9 Mar, 16:54
Re: Wind Velocity from Three DriftsTony Oz9 Mar, 19:05
Re: Wind Velocity from Three DriftsDavid Pike10 Mar, 17:57
Re: Wind Velocity from Three DriftsDavid C11 Mar, 01:10
Re: Wind Velocity from Three DriftsDavid C11 Mar, 01:19
Re: Wind Velocity from Three DriftsDavid Pike11 Mar, 20:28
Re: Wind Velocity from Three DriftsGary LaPook11 Mar, 20:55
Re: Wind Velocity from Three DriftsGary LaPook11 Mar, 20:57
Re: Wind Velocity from Three DriftsEd Popko11 Mar, 23:59
Re: Wind Velocity from Three DriftsTony Oz12 Mar, 14:27
Re: Wind Velocity from Three DriftsTony Oz12 Mar, 19:54
Re: Wind Velocity from Three DriftsGary LaPook12 Mar, 20:37
Re: Wind Velocity from Three DriftsGary LaPook13 Mar, 07:00
Re: Wind Velocity from Three DriftsGary LaPook13 Mar, 07:02
Re: Wind Velocity from Three DriftsGary LaPook13 Mar, 07:05
Re: Wind Velocity from Three DriftsGary LaPook13 Mar, 07:09
Re: Wind Velocity from Three DriftsGary LaPook13 Mar, 07:11
Re: Wind Velocity from Three DriftsGary LaPook13 Mar, 07:16
Re: Wind Velocity from Three DriftsDavid Pike13 Mar, 09:07
Re: Wind Velocity from Three DriftsGary LaPook13 Mar, 11:09
Re: Wind Velocity from Three DriftsGary LaPook13 Mar, 11:11
Re: Wind Velocity from Three DriftsBrian Walton13 Mar, 13:39
Re: Wind Velocity from Three DriftsDavid Pike13 Mar, 18:57

Index includes 273 messages.

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