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

October, 2020

Index includes 255 messages. Sorted by date, recent messages last.

                    
GHA of the MoonJames Vrancik1 Oct 2020, 22:00
Re: GHA of the MoonFrank Reed1 Oct 2020, 22:34
Re: GHA of the MoonDavid Iwancio2 Oct 2020, 00:05
Re: GHA of the MoonRoger W. Sinnott2 Oct 2020, 00:49
Re: GHA of the MoonGary LaPook2 Oct 2020, 08:22
Re: Navigation Systems: online lectureDavid Pike2 Oct 2020, 15:16
Re: GHA of the MoonJames Vrancik2 Oct 2020, 21:48
Re: GHA of the MoonDavid C3 Oct 2020, 00:26
Re: GHA of the MoonSean C3 Oct 2020, 04:48
Re: GHA of the MoonFrank Reed3 Oct 2020, 05:12
Re: GHA of the MoonDavid C3 Oct 2020, 08:01
Re: GHA of the MoonDavid Iwancio3 Oct 2020, 18:25
Re: GHA of the MoonFrank Reed3 Oct 2020, 18:39
Modern Celestial Navigation workshops postponed until mid-NovemberFrank Reed3 Oct 2020, 20:28
Re: GHA of the MoonJames Vrancik3 Oct 2020, 20:29
Online Meeting Tomorrow, Oct 4, "Distance by Vertical Angle"Frank Reed3 Oct 2020, 20:46
Re: GHA of the MoonFrank Reed3 Oct 2020, 22:59
Re: GHA of the MoonFrank Reed3 Oct 2020, 23:09
Reconditioned Bausch and Lomb A8-A Bubble Sextant F.S. DiscountedRobert Swartz4 Oct 2020, 02:05
Re: GHA of the MoonPeter Hakel4 Oct 2020, 05:01
Re: GHA of the MoonMichael Bradley4 Oct 2020, 12:01
Re: GHA of the MoonSean C5 Oct 2020, 07:48
Re: Flight 19 routeKevin MacKenzie5 Oct 2020, 16:54
Re: GHA of the MoonTibor Miseta5 Oct 2020, 17:16
Old navigation books collectionHerman Dekker5 Oct 2020, 20:43
Re: GHA of the MoonFrank Reed5 Oct 2020, 21:11
Re: Old navigation books collectionSimon Horwith5 Oct 2020, 22:08
Re: Old navigation books collectionDavid C6 Oct 2020, 04:35
Distance by Vertical AngleFrank Reed6 Oct 2020, 18:09
Re: US Navy MK II sextant manualRandy Shivak6 Oct 2020, 22:07
Re: Distance by Vertical AngleDavid Pike6 Oct 2020, 23:16
Re: US Navy MK II sextant manualBruce Cutting7 Oct 2020, 00:14
Battenberg manualsRonald van Riet7 Oct 2020, 08:35
Re: Battenberg manualsDavid Pike7 Oct 2020, 17:54
Re: Battenberg manualsDavid Pike7 Oct 2020, 18:02
Re: Distance by Vertical AngleFrank Reed7 Oct 2020, 18:16
Re: Distance by Vertical AngleMurray Buckman7 Oct 2020, 18:18
Free Webinar on 17th & 18th Century Marine NavigationDavid Pike7 Oct 2020, 18:24
Re: Battenberg manualsJohn Niven7 Oct 2020, 19:01
Re: Battenberg manualsAlan S7 Oct 2020, 19:16
Re: Battenberg manualsDavid Pike7 Oct 2020, 23:26
Re: Distance by Vertical AngleFrank Reed8 Oct 2020, 00:42
Phosphine biomarker gas in Venus atmosphere.Francis Upchurch8 Oct 2020, 02:48
Re: Phosphine biomarker gas in Venus atmosphere.Alan S8 Oct 2020, 04:02
Celestial navigation resurgence (Yachting World)John Carbone8 Oct 2020, 12:17
Re: Battenberg manualsMichael Bradley8 Oct 2020, 14:23
Re: Free Webinar on 17th & 18th Century Marine NavigationDavid Pike8 Oct 2020, 18:38
Re: Free Webinar on 17th & 18th Century Marine NavigationDavid Pike8 Oct 2020, 20:56
Re: Battenberg manualsDavid Pike8 Oct 2020, 22:54
Re: Battenberg manualsDavid Pike8 Oct 2020, 23:11
Re: Battenberg manualsJohn Niven9 Oct 2020, 11:09
Re: Free Webinar on 17th & 18th Century Marine NavigationJohn Clements9 Oct 2020, 21:37
Re: Time sight primerDavid C10 Oct 2020, 08:45
Haversines with LogarithmsMatthew Gianelloni10 Oct 2020, 16:15
Re: Time sight primerFrank Reed11 Oct 2020, 01:00
Re: Haversines with LogarithmsFrank Reed11 Oct 2020, 01:21
Online Meetings Tomorrow, Oct 11Frank Reed11 Oct 2020, 01:31
Re: Time sight primerDavid C11 Oct 2020, 02:41
Re: Haversines with LogarithmsMatthew Gianelloni11 Oct 2020, 11:46
Re: Haversines with LogarithmsMatthew Gianelloni11 Oct 2020, 12:14
Re: Haversines with LogarithmsLars Bergman11 Oct 2020, 14:40
Re: Haversines with LogarithmsFrank Reed11 Oct 2020, 16:03
Re: Haversines with LogarithmsMatthew Gianelloni11 Oct 2020, 16:14
Re: Haversines with LogarithmsGreg Rudzinski11 Oct 2020, 18:51
Historical US nautical charts and other mapsFrank Reed11 Oct 2020, 21:16
Re: Haversines with LogarithmsMatthew Gianelloni12 Oct 2020, 01:10
Re: Haversines with LogarithmsMatthew Gianelloni12 Oct 2020, 01:17
Re: Haversines with LogarithmsDavid C12 Oct 2020, 03:41
Re: Haversines with LogarithmsGreg Rudzinski12 Oct 2020, 06:03
Re: Haversines with LogarithmsMatthew Gianelloni12 Oct 2020, 10:56
Re: Haversines with LogarithmsMatthew Gianelloni12 Oct 2020, 11:44
Re: Haversines with LogarithmsMatthew Gianelloni12 Oct 2020, 14:13
Re: Haversines with LogarithmsGreg Rudzinski12 Oct 2020, 14:28
Re: Haversines with LogarithmsMatthew Gianelloni12 Oct 2020, 14:36
Re: Haversines with LogarithmsFrank Reed12 Oct 2020, 17:51
Re: Haversines with LogarithmsMatthew Gianelloni12 Oct 2020, 18:13
Navigation Training at Sea and in the Air - Free Online SeminarDavid Pike12 Oct 2020, 19:00
Re: Haversines with LogarithmsGary LaPook12 Oct 2020, 23:41
Re: Haversines with LogarithmsMatthew Gianelloni12 Oct 2020, 23:51
Re: Haversines with LogarithmsMurray Buckman13 Oct 2020, 00:28
Re: Haversines with LogarithmsDavid C13 Oct 2020, 02:40
Re: Battenberg manualsRonald van Riet13 Oct 2020, 10:08
Re: Haversines with LogarithmsMatthew Gianelloni13 Oct 2020, 11:26
Re: Haversines with LogarithmsMatthew Gianelloni13 Oct 2020, 12:05
How long until Sun goes down?Herman Dekker13 Oct 2020, 18:10
Re: Haversines with LogarithmsMatthew Gianelloni13 Oct 2020, 18:22
Re: Battenberg manualsDavid Pike13 Oct 2020, 18:42
Experience with an artifical horizonModris Fersters13 Oct 2020, 18:51
Re: Haversines with LogarithmsDavid C13 Oct 2020, 19:49
Re: Experience with an artifical horizonGreg Rudzinski13 Oct 2020, 22:04
Re: Experience with an artifical horizonAlan S14 Oct 2020, 03:49
Re: Experience with an artifical horizonDavid C14 Oct 2020, 04:44
Re: Experience with an artifical horizonDavid Iwancio14 Oct 2020, 07:05
Clear side of horizon mirrors has reflecting properties.Bob GW14 Oct 2020, 09:28
Re: Experience with an artifical horizonMatthew Gianelloni14 Oct 2020, 11:24
Re: Experience with an artifical horizonMatthew Gianelloni14 Oct 2020, 11:32
24MP DSLR 35mm LunarsGreg Rudzinski14 Oct 2020, 13:26
Re: Experience with an artifical horizonDoug MacPherson14 Oct 2020, 14:47
Re: Clear side of horizon mirrors has reflecting properties.David Pike14 Oct 2020, 15:53
Re: 24MP DSLR 35mm LunarsGreg Rudzinski14 Oct 2020, 16:08
Re: Experience with an artifical horizonGary LaPook14 Oct 2020, 17:12
Re: Clear side of horizon mirrors has reflecting properties.Bob GW14 Oct 2020, 17:21
Re: Haversines with LogarithmsGary LaPook14 Oct 2020, 18:01
Re: Clear side of horizon mirrors has reflecting properties.David C14 Oct 2020, 18:09
Re: Haversines with LogarithmsDavid C14 Oct 2020, 18:51
Re: Haversines with LogarithmsDavid C14 Oct 2020, 18:54
Re: Haversines with LogarithmsMatthew Gianelloni14 Oct 2020, 19:31
Re: Clear side of horizon mirrors has reflecting properties.David Pike14 Oct 2020, 19:55
Re: Folding Chair for CNAlan S14 Oct 2020, 21:45
Re: 24MP DSLR 35mm LunarsFrank Reed15 Oct 2020, 01:55
Re: 24MP DSLR 35mm LunarsGreg Rudzinski15 Oct 2020, 02:27
Re: Haversines with LogarithmsMatthew Gianelloni15 Oct 2020, 10:31
Re: Navigation Training at Sea and in the Air - Free Online SeminarDavid Pike15 Oct 2020, 16:29
Problem: index correction by starModris Fersters15 Oct 2020, 18:23
Re: Problem: index correction by starFrank Reed15 Oct 2020, 18:53
Re: Experience with an artifical horizonMarty Lyons15 Oct 2020, 23:00
Re: Navigation Training at Sea and in the Air - Free Online SeminarFrank Reed15 Oct 2020, 23:04
Re: Experience with an artifical horizonGreg Rudzinski16 Oct 2020, 01:06
Re: Clear side of horizon mirrors has reflecting properties.Bill Morris16 Oct 2020, 01:29
Re: Experience with an artifical horizonDavid Fleming16 Oct 2020, 03:03
Re: Experience with an artifical horizonRobert Swartz16 Oct 2020, 03:13
Re: Problem: index correction by starModris Fersters16 Oct 2020, 05:49
Re: Clear side of horizon mirrors has reflecting properties.John Clements16 Oct 2020, 05:51
Re: Haversines with LogarithmsBrian Walton16 Oct 2020, 07:58
Re: Clear side of horizon mirrors has reflecting properties.David Pike16 Oct 2020, 08:49
Re: Haversines with LogarithmsMatthew Gianelloni16 Oct 2020, 11:10
Re: Experience with an artifical horizonGary LaPook16 Oct 2020, 17:26
Re: Navigation Training at Sea and in the Air - Free Online SeminarBob Crawley16 Oct 2020, 18:09
Re: Navigation Training at Sea and in the Air - Free Online SeminarDavid Pike16 Oct 2020, 20:21
Re: Haversines with LogarithmsDavid C16 Oct 2020, 21:12
Re: Clear side of horizon mirrors has reflecting properties.Bill Morris17 Oct 2020, 02:41
Re: Clear side of horizon mirrors has reflecting properties.Bill Morris17 Oct 2020, 03:24
Re: Crelle's tablesDavid C17 Oct 2020, 04:29
Re: Navigation Training at Sea and in the Air - Free Online SeminarGary LaPook17 Oct 2020, 05:43
Re: Crelle's tablesDavid C17 Oct 2020, 05:52
Re: Crelle's tablesHerman Dekker17 Oct 2020, 07:17
Re: Haversines with LogarithmsBrian Walton17 Oct 2020, 09:01
Re: Crelle's tablesLars Bergman17 Oct 2020, 09:11
Re: Navigation Training at Sea and in the Air - Free Online SeminarDavid Pike17 Oct 2020, 09:14
Re: Crelle's tablesAlan S17 Oct 2020, 16:39
Re: Crelle's tablesFrank Reed17 Oct 2020, 18:17
Re: Haversines with LogarithmsMatthew Gianelloni17 Oct 2020, 18:25
Re: Slide ruleDoug Faunt17 Oct 2020, 18:53
Re: Clear side of horizon mirrors has reflecting properties.David Pike17 Oct 2020, 19:54
Re: Crelle's tablesDavid C17 Oct 2020, 20:00
Re: Crelle's tablesPeter Hakel17 Oct 2020, 20:16
Re: Navigation Training at Sea and in the Air - Free Online SeminarGary LaPook17 Oct 2020, 20:42
Re: Haversines with LogarithmsRoger W. Sinnott17 Oct 2020, 21:22
No "Office Hours" todayFrank Reed18 Oct 2020, 08:42
Re: Experience with an artifical horizonEd Popko18 Oct 2020, 13:38
Re: 24MP DSLR 35mm LunarsEd Popko18 Oct 2020, 13:41
Re: Haversines with LogarithmsBrian Walton18 Oct 2020, 14:49
Re: Experience with an artifical horizonDavid Iwancio18 Oct 2020, 17:07
Re: Haversines with LogarithmsDavid Pike18 Oct 2020, 19:39
Re: Experience with an artifical horizonGary LaPook18 Oct 2020, 22:26
USAF smartphone celestial patentFrank Reed18 Oct 2020, 22:58
Re: Haversines with LogarithmsDavid C19 Oct 2020, 02:05
Re: Measuring (and Calculating) DipAndrew T. Young19 Oct 2020, 04:24
Re: Haversines with LogarithmsDavid C19 Oct 2020, 04:26
Deborah Warner Article re. Aircraft SextantsRobert Swartz19 Oct 2020, 04:33
Smithsonian Collection of Aircraft SextantsRobert Swartz19 Oct 2020, 04:35
Re: Smithsonian Collection of Aircraft SextantsJürgen Hoefeld19 Oct 2020, 07:38
Re: USAF smartphone celestial patentDavid Pike19 Oct 2020, 08:38
Re: USAF smartphone celestial patentFred Hebard19 Oct 2020, 08:53
Re: Navigation Training at Sea and in the Air - Free Online SeminarDavid Pike19 Oct 2020, 15:56
Re: USAF smartphone celestial patentDavid Pike19 Oct 2020, 16:22
Re: USAF smartphone celestial patentDavid Pike19 Oct 2020, 16:34
Re: Haversines with LogarithmsDavid C19 Oct 2020, 21:14
Re: Smithsonian Collection of Aircraft SextantsRobert Swartz19 Oct 2020, 22:46
Re: Smithsonian Collection of Aircraft SextantsGary LaPook20 Oct 2020, 03:53
Re: Haversines with LogarithmsBrian Walton20 Oct 2020, 14:45
Workshop this weekend: Celestial in the Age of SailFrank Reed20 Oct 2020, 15:49
My "Office Hours" sessions, schedule changeFrank Reed20 Oct 2020, 17:26
Re: Haversines with LogarithmsFrank Reed20 Oct 2020, 20:36
Curious sextant add-onBill Lockhart21 Oct 2020, 17:06
Re: Curious sextant add-onDavid Iwancio21 Oct 2020, 18:10
Re: Curious sextant add-onLuc Van den Borre21 Oct 2020, 18:41
Navigation stars and a SpaceX MockshipFrank Reed21 Oct 2020, 19:56
Re: Curious sextant add-onGary LaPook21 Oct 2020, 21:06
Re: Curious sextant add-onBill Lockhart22 Oct 2020, 00:14
Re: Navigation stars and a SpaceX MockshipMurray Buckman22 Oct 2020, 01:20
Re: Navigation stars and a SpaceX MockshipFrank Reed22 Oct 2020, 02:08
Re: Navigation stars and a SpaceX MockshipDoug Faunt22 Oct 2020, 02:33
Re: Curious sextant add-onBill Lionheart22 Oct 2020, 06:57
Re: Curious sextant add-onGary LaPook22 Oct 2020, 08:08
Re: Curious sextant add-onBill Lionheart22 Oct 2020, 09:44
Re: Curious sextant add-onDavid Iwancio22 Oct 2020, 16:26
Re: Curious sextant add-onDavid Pike22 Oct 2020, 17:10
Re: Curious sextant add-onDoug Faunt22 Oct 2020, 17:23
Re: Curious sextant add-onBill Lockhart22 Oct 2020, 17:42
Re: Navigation Training at Sea and in the Air - Free Online SeminarDavid Pike22 Oct 2020, 18:25
Re: Curious sextant add-onMichael Bradley22 Oct 2020, 18:39
Re: Navigation stars and a SpaceX MockshipMurray Buckman22 Oct 2020, 18:55
Re: Curious sextant add-onDustin Baenen22 Oct 2020, 19:20
Re: Curious sextant add-onDavid Pike22 Oct 2020, 19:56
Re: Hav-Doniol re-visitedDavid C22 Oct 2020, 20:39
Re: Curious sextant add-onDustin Baenen22 Oct 2020, 21:24
French inertial-celestial systemFrank Reed22 Oct 2020, 21:27
Re: Hav-Doniol re-visitedGreg Rudzinski22 Oct 2020, 23:26
Re: Hav-Doniol re-visitedGreg Rudzinski23 Oct 2020, 00:20
Article about Frank's Nautical Almanac clone app in Ocean Navigator.Doug Faunt23 Oct 2020, 02:33
Live, interactive "Office Hours" Oct 23 and Oct 25 (Friday and Sunday)Frank Reed23 Oct 2020, 03:14
Re: Haversines with LogarithmsGary LaPook23 Oct 2020, 06:56
Re: Haversines with LogarithmsFrank Reed23 Oct 2020, 07:36
Re: Live, interactive "Office Hours" Oct 23 and Oct 25 (Friday and Sunday)David Pike23 Oct 2020, 08:45
Re: Haversines with LogarithmsGary LaPook23 Oct 2020, 19:19
Heavenly Mathematics - The Forgotten Art of Spherical TrigonometryEd Popko24 Oct 2020, 15:35
Re: Hav-Doniol re-visitedDavid C25 Oct 2020, 04:08
Simultaneous near limb - far limb lunarsTibor Miseta25 Oct 2020, 10:01
Re: Live, interactive "Office Hours" Oct 23 and Oct 25 (Friday and Sunday)Frank Reed25 Oct 2020, 14:57
Re: Simultaneous near limb - far limb lunarsDavid Fleming25 Oct 2020, 19:47
Re: Hav-Doniol re-visitedGreg Rudzinski25 Oct 2020, 20:29
Re: Simultaneous near limb - far limb lunarsDave Walden26 Oct 2020, 13:48
Re: Simultaneous near limb - far limb lunarsGreg Rudzinski26 Oct 2020, 23:19
Re: Simultaneous near limb - far limb lunarsTibor Miseta27 Oct 2020, 10:46
Question from the FNGMatthew Gianelloni27 Oct 2020, 13:43
Re: Question from the FNGJim Hickey27 Oct 2020, 17:40
Re: Question from the FNGJohn Clements27 Oct 2020, 17:49
Re: Simultaneous near limb - far limb lunarsLars Bergman27 Oct 2020, 18:24
Re: Question from the FNGMatthew Gianelloni28 Oct 2020, 00:18
Re: Question from the FNGRobert VanderPol II28 Oct 2020, 04:37
Re: Question from the FNGGary LaPook28 Oct 2020, 05:18
Re: Question from the FNGGary LaPook28 Oct 2020, 05:36
Re: Question from the FNGGary LaPook28 Oct 2020, 05:43
Digital watches as chronometersGary LaPook28 Oct 2020, 08:37
“The Dutch Raid on the Medway 1667 ” Free online webinarDavid Pike28 Oct 2020, 11:28
Re: Digital watches as chronometersGreg Rudzinski28 Oct 2020, 18:02
Re: Digital watches as chronometersGary LaPook28 Oct 2020, 18:29
Re: Digital watches as chronometersGary LaPook28 Oct 2020, 18:55
Hanno Ix azimuth diagram flowchart?Brian Villmoare29 Oct 2020, 04:51
Re: Hanno Ix azimuth diagram flowchart?Greg Rudzinski29 Oct 2020, 13:22
Re: Hanno Ix azimuth diagram flowchart?Brian Villmoare29 Oct 2020, 18:42
Re: Hanno Ix azimuth diagram flowchart?David C30 Oct 2020, 01:48
Re: Hanno Ix azimuth diagram flowchart?David C30 Oct 2020, 02:05
The Nautical Mile?Mike Freeman30 Oct 2020, 07:59
Re: Hanno Ix azimuth diagram flowchart?Herman Dekker30 Oct 2020, 09:33
Live, interactive "Office Hours" TODAY and SundayFrank Reed30 Oct 2020, 15:21
Re: Hanno Ix azimuth diagram flowchart?Brian Villmoare30 Oct 2020, 16:30
Lars Bergman - Worsleys LogbookDavid Mearns30 Oct 2020, 18:17
Re: Hanno Ix azimuth diagram flowchart?David C30 Oct 2020, 21:16
Re: Hanno Ix azimuth diagram flowchart?David C30 Oct 2020, 22:52
Re: The Nautical Mile?Robert VanderPol II31 Oct 2020, 00:39
Lecky's mistakeDavid C31 Oct 2020, 03:20
Re: Lecky's mistakeFrank Reed31 Oct 2020, 04:06
Re: Lecky's mistakeMurray Peake31 Oct 2020, 09:40
Radians and DegreesSean C31 Oct 2020, 11:07
Re: Lecky's mistakeDavid Pike31 Oct 2020, 12:44
Re: The Nautical Mile?Lars Bergman31 Oct 2020, 15:40
Re: The Nautical Mile?James F Campbell31 Oct 2020, 16:22
Re: The Nautical Mile?Mike Freeman31 Oct 2020, 18:25
Re: The Nautical Mile?Don Seltzer31 Oct 2020, 19:46
Re: Lecky's mistakeDavid Pike31 Oct 2020, 19:55
Re: Lecky's mistakeDavid C31 Oct 2020, 20:53
Re: Radians and DegreesRobert VanderPol II31 Oct 2020, 22:34
Re: The Nautical Mile?Gary LaPook31 Oct 2020, 23:27

Index includes 255 messages.

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