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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Position-Finding

Recent Messages

Index includes 129 messages. Sorted by message ID, in descending order.
SubjectAuthorDate (UT)SizeID
Better/easier GHA(Aries) formula?Tony Oz17 Jul, 11:164313g42391
Re: Venus Moon CPA TonightDavid Smith17 Jul, 10:151659g42390
Re: What is this Slide Rule?David C17 Jul, 02:071694g42389
Re: Shiny and golden? It's not a real sextantFrank Reed16 Jul, 16:529460g42388
Re: Shiny and golden? It's not a real sextantJim Hickey16 Jul, 14:391856g42387
Re: Venus Moon CPA TonightEd Popko16 Jul, 09:561322g42386
Venus Moon CPA TonightGreg Rudzinski16 Jul, 03:561846g42385
Bowditch 1802 - First editionJackson McDonald15 Jul, 22:458028g42384
Re: Shiny and golden? It's not a real sextantNorm Goldblatt15 Jul, 20:562706g42383
Re: What is this Slide Rule?Francis Upchurch15 Jul, 19:273921g42382
Re: Shiny and golden? It's not a real sextantEd Popko15 Jul, 19:072518g42381
Re: What is this Slide Rule?Francis Upchurch15 Jul, 18:541377g42380
Shiny and golden? It's not a real sextantFrank Reed15 Jul, 18:483285g42379
Re: What is this Slide Rule?Frank Reed15 Jul, 18:372751g42378
Re: What is this Slide Rule?Francis Upchurch15 Jul, 18:191553g42377
Re: What is this Slide Rule?Noell Wilson15 Jul, 14:442926g42376
19th century navigation time systemsEd Popko15 Jul, 07:015478g42375
Re: What is this Slide Rule?Francis Upchurch15 Jul, 05:013973g42374
Re: What is this Slide Rule?Greg Rudzinski15 Jul, 03:451857g42373
What is this Slide Rule?David C15 Jul, 02:543619g42372
Re: Did transistors transform celestial navigation?David Pike14 Jul, 21:595358g42371
Re: Did transistors transform celestial navigation?Ed Popko14 Jul, 15:492341g42370
Re: Did transistors transform celestial navigation?John D. Howard14 Jul, 14:152652g42369
Re: Reading degrees on a sextantEd Popko14 Jul, 11:122821g42368
Re: Reading degrees on a sextantMichael Bradley14 Jul, 10:081683g42367
Re: Did transistors transform celestial navigation?David C14 Jul, 09:184552g42366
Re: Did transistors transform celestial navigation?Wolfgang Köberer14 Jul, 09:1070071g42365
Re: Did transistors transform celestial navigation?Alexandre Eremenko14 Jul, 08:0317321g42364
Re: Did transistors transform celestial navigation?Francis Upchurch14 Jul, 05:113490g42363
Re: Did transistors transform celestial navigation?Mark Coady14 Jul, 03:184470g42362
Did transistors transform celestial navigation?Frank Reed14 Jul, 00:2131694g42361
Reading degrees on a sextantFrank Reed13 Jul, 22:423814g42360
Re: Repair for John Carter Chronometer Cornhill 738 circa 1862Barry Carter11 Jul, 13:571530g42359
Re: Sextant in Avro VulcanDavid Pike11 Jul, 09:098576g42358
Re: Sextant in Avro VulcanCharles McElhill10 Jul, 20:581758g42357
Sextant in Avro VulcanFrank Reed10 Jul, 00:082609g42356
Re: Meridian-anchored Noon SunPaul Hughes9 Jul, 17:431466g42355
Re: Meridian-anchored Noon SunPeter Monta9 Jul, 17:384726g42354
Re: Meridian-anchored Noon SunDavid Fleming8 Jul, 20:182707g42353
Re: Meridian-anchored Noon SunPeter Monta8 Jul, 15:594520g42352
Repair for John Carter Chronometer Cornhill 738 circa 1862Ron Legacy7 Jul, 19:271641g42351
Re: Chronometer repair: Has anyone dealt with Historic timekeepers?Tracy Shrier7 Jul, 16:532980g42350
Re: Negative v correctionTerry Syrokosz6 Jul, 23:381977g42349
Re: Origins of civilian use of GPSPeter Monta6 Jul, 15:585001g42348
Re: Negative v correctionStan K5 Jul, 20:01394510g42347
Re: Negative v correctionGary LaPook5 Jul, 19:181793g42346
Re: Negative v correctionTerry Syrokosz5 Jul, 17:131731g42345
Re: Negative v correctionTerry Syrokosz5 Jul, 17:051770g42344
Re: Negative v correctionStan K5 Jul, 15:584939g42343
Negative v correctionTerry Syrokosz5 Jul, 15:002082g42342
Re: Origins of civilian use of GPSRichard B. Langley5 Jul, 13:292422g42341
Origins of civilian use of GPSRichard Easton4 Jul, 22:421728g42340
Re: Starting a poem for Lunars & a new wobbly sight platform.Ed Popko4 Jul, 10:052801g42339
Re: Golden Globe Race 2018 startDavid C4 Jul, 07:371857g42338
Re: Year USNO launched Celestial Navigation Data webpageDavid C4 Jul, 07:222100g42337
Re: Starting a poem for Lunars & a new wobbly sight platform.Mark Coady4 Jul, 04:131445g42336
Starting a poem for Lunars & a new wobbly sight platform.Mark Coady4 Jul, 03:296720g42335
Re: Year USNO launched Celestial Navigation Data webpageGary LaPook3 Jul, 00:481520g42334
Re: Year USNO launched Celestial Navigation Data webpageFrank Reed2 Jul, 23:064838g42333
Year USNO launched Celestial Navigation Data webpageEd Popko2 Jul, 21:352637g42332
Re: Chronometer repair: Has anyone dealt with Historic timekeepers?Bob Peterson1 Jul, 16:582835g42331
Re: Golden Globe Race 2018 startTom Sult1 Jul, 16:314192g42330
Re: Chronometer repair: Has anyone dealt with Historic timekeepers?Alejandro Purgue1 Jul, 16:087466g42329
Re: Golden Globe Race 2018 startGreg Rudzinski1 Jul, 16:081544g42328
Golden Globe Race 2018 startLuc Van den Borre1 Jul, 14:071515g42327
Re: Camera Bris Sextant ExerciseGreg Rudzinski30 Jun, 21:174208g42326
Re: What Three Words at seaGary LaPook30 Jun, 19:582505g42325
Re: Chronometer repair: Has anyone dealt with Historic timekeepers?John Tygart30 Jun, 14:373571g42324
Re: What Three Words at seaEd Popko30 Jun, 11:483832g42323
Re: What Three Words at seaBill Lionheart30 Jun, 09:132665212g42322
Re: What Three Words at seaFrank Reed30 Jun, 08:076722g42321
Re: What Three Words at seaDavid C30 Jun, 03:041850g42320
Re: The "Tables Requisite" (1781) on eBayFrank Reed30 Jun, 02:152760g42319
Re: What Three Words at seaFrank Reed29 Jun, 23:2411557g42318
Re: What Three Words at seaBill Lionheart29 Jun, 20:083505g42317
Re: What Three Words at seaGreg Rudzinski29 Jun, 18:511699g42316
Re: What Three Words at seaSean C29 Jun, 02:072378g42315
Re: What Three Words at seaRobert VanderPol II29 Jun, 01:541272g42314
What Three Words at seaBill B28 Jun, 20:101360g42313
Re: Time standard for the Space StationDon Seltzer28 Jun, 17:104382g42312
Re: Time standard for the Space StationJohn D. Howard28 Jun, 15:161606g42311
Re: Time standard for the Space StationMike Mayer28 Jun, 11:5712134g42310
Re: Time standard for the Space StationFrank Reed28 Jun, 03:275622g42309
Re: Longitude Sight, South Pacific, 1864 - RevisitedHenry Halboth28 Jun, 02:335145g42308
Meridian-anchored Noon SunFrank Reed28 Jun, 02:236820g42307
Re: Time standard for the Space StationPaul Dolkas28 Jun, 00:5214285g42306
Re: Camera Bris Sextant ExerciseGreg Rudzinski27 Jun, 23:342094g42305
Re: Time standard for the Space StationFrank Reed27 Jun, 19:437220g42304
Time standard for the Space StationPaul Dolkas27 Jun, 18:163094g42303
Re: Longitude Sight, South Pacific, 1864 - RevisitedEd Popko27 Jun, 10:532046g42302
Re: Camera Bris Sextant ExercisePeter Monta27 Jun, 06:406669g42301
Longitude Sight, South Pacific, 1864 - RevisitedHenry Halboth27 Jun, 01:3341957g42300
Camera Bris Sextant ExerciseGreg Rudzinski26 Jun, 19:502942g42299
Bowditch's "Navigator" (1832) on eBayFrank Reed26 Jun, 02:153291g42298
The "Tables Requisite" (1781) on eBayFrank Reed26 Jun, 01:015826g42297
Re: Flat Bygrave alternative configurationHerman Dekker25 Jun, 23:581559g42296
Re: Flat Bygrave alternative configurationRobin Stuart25 Jun, 17:331632g42295
Re: Flat Bygrave alternative configurationHerman Dekker25 Jun, 17:141682g42294
Re: Gary LaPooks Flat BygraveRobin Stuart25 Jun, 15:182108g42293
Re: Gary LaPooks Flat BygraveGary LaPook25 Jun, 07:301713g42292
Gary LaPooks Flat BygraveAlan S25 Jun, 00:411230g42291
Re: Where was the solstice?Paul Hirose23 Jun, 20:243940g42290
Re: Status Report on Navigator's Slide RuleSean Johnston22 Jun, 20:374368g42289
Possible email message malwareFrank Reed22 Jun, 17:542858g42288
Re: Where was the solstice?Geoffrey Kolbe22 Jun, 06:292372g42287
Re: Determining refraction in 19th CenturyEd Popko22 Jun, 00:252741g42286
Re: Status Report on Navigator's Slide RuleBob Goethe21 Jun, 23:483158g42285
Re: Where was the solstice?Bill B21 Jun, 20:533444g42284
Re: Where was the solstice?Antoine Couëtte21 Jun, 19:343674g42283
Re: Status Report on Navigator's Slide RuleSean Johnston21 Jun, 14:533500g42282
Re: Where was the solstice?John D. Howard21 Jun, 14:461565g42281
Re: Determining refraction in 19th CenturyBruce J. Pennino21 Jun, 13:123989g42280
Where was the solstice?Frank Reed21 Jun, 13:041519g42279
Determining refraction in 19th CenturyEd Popko21 Jun, 10:3749938g42278
The Astrograph ExplainedDavid Pike20 Jun, 18:414071g42277
Re: Which Nav-Station is this?David Pike20 Jun, 18:106303g42276
Re: Which Nav-Station is this?Paul Hirose20 Jun, 17:448775g42275
Re: Which Nav-Station is this?John D. Howard20 Jun, 16:211689g42274
Re: Which Nav-Station is this?David Pike20 Jun, 08:582535g42273
Re: Which Nav-Station is this?John D. Howard19 Jun, 22:001462g42272
Re: Which Nav-Station is this?John D. Howard19 Jun, 20:161713g42271
Re: Shadows on Google Maps Satellite PhotographsDavid Pike18 Jun, 09:551618g42270
Which Nav-Station is this?David Pike18 Jun, 08:243783g42269
Re: Kollsman sextant with MOUNT now on ebay.Jacob M. Huffman III17 Jun, 22:5214575g42268
Re: Kollsman sextant with MOUNT now on ebay.David Pike17 Jun, 21:1111776g42267
Re: Bubble sextant patentsRobert Eno17 Jun, 17:397374g42266
Re: Bubble sextant patentsGreg Rudzinski17 Jun, 17:141970g42265
Bubble sextant patentsEd Popko17 Jun, 11:092578g42264
Kollsman sextant with MOUNT now on ebay.Gary LaPook16 Jun, 22:382023g42263

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