#celestialnavigation — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #celestialnavigation, aggregated by home.social.
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I’m revising my celestial navigation theory.
I can’t but notice that these online teachers look nothing like my old RYA instructor. I’m glad to see so many young women proficient in these old skills, but I worry they’ll catch a chill. -
Celestial navigation of a native moth
During their annual 1,000-kilometre journey to cool inland caves the Bogong moths have to rest in human hubs. There they get vacuumed and sprayed as pests with pesticides or just squashed by 'progress'. Few of the endangered species make it after their round-the-world journey to return home to Australia’s highest mountain range.
"Our results suggest that Bogong moths use stellar cues and the Earth’s magnetic field to create a robust compass system for long-distance nocturnal navigation towards a specific destination."
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Bogong moths use a stellar compass for long-distance navigation at night
https://www.nature.com/articles/s41586-025-09135-3
#insects #Bogong #moths #CelestialNavigation #compass #AgrotisInfusa #MagneticField #MilkyWay #EndangeredSpecies #biodiversity -
Sextant Reflections by Henry Cordova: https://goodoldboat.com/wp-content/uploads/2018/03/50-53_GOB97_JA97_Sextant.pdf
(via Centauri Dreams)
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"Each spring, billions of Bogong moths (Agrotis infusa) migrate hundreds of kilometres south to the Australian Alps, guided by the austral night sky. The discovery that they can find their way using only the stars — reported in an 18 June Nature paper — makes this moth the first invertebrate to be observed using celestial navigation for long-distance journeys."
https://www.nature.com/articles/d41586-025-01935-x
#Moths #Nature #Migrations #Bogong #Australia #Navigation #CelestialNavigation
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No doubt delayed by the postal strike, but I’m glad to finally have my hands on the 2025 edition of the Guide to the US Navy - complete with my piece on recent use of celestial navigation techniques by the crews of US Navy warships, and specifically about a recent Atlantic transit by the USS Porter. I wonder what other aspects of modern life will require analog alternatives when our digital solutions fail us? #warships #usnavy #writing #celestialnavigation
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Navigating the high seas means precision is everything! 🌊 So, I created a Python script to filter my sextant readings on my #YachtmasterOcean passage from the Azores to Fernando de Noronha 🧭✨ Say goodbye to outliers and hello to a clean average! Now I can trust my stars (and my code) just a little bit more. Check it out here: https://github.com/kevinveenbirkenbach/sextant-averager #CelestialNavigation #Python #Sextant #OceanPassage #Sailing #Navigation #Yachtmaster
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Navigating the high seas means precision is everything! 🌊 So, I created a Python script to filter my sextant readings on my #YachtmasterOcean passage from the Azores to Fernando de Noronha 🧭✨ Say goodbye to outliers and hello to a clean average! Now I can trust my stars (and my code) just a little bit more. Check it out here: https://github.com/kevinveenbirkenbach/sextant-averager #CelestialNavigation #Python #Sextant #OceanPassage #Sailing #Navigation #Yachtmaster
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Navigating the high seas means precision is everything! 🌊 So, I created a Python script to filter my sextant readings on my #YachtmasterOcean passage from the Azores to Fernando de Noronha 🧭✨ Say goodbye to outliers and hello to a clean average! Now I can trust my stars (and my code) just a little bit more. Check it out here: https://github.com/kevinveenbirkenbach/sextant-averager #CelestialNavigation #Python #Sextant #OceanPassage #Sailing #Navigation #Yachtmaster
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Navigating the high seas means precision is everything! 🌊 So, I created a Python script to filter my sextant readings on my #YachtmasterOcean passage from the Azores to Fernando de Noronha 🧭✨ Say goodbye to outliers and hello to a clean average! Now I can trust my stars (and my code) just a little bit more. Check it out here: https://github.com/kevinveenbirkenbach/sextant-averager #CelestialNavigation #Python #Sextant #OceanPassage #Sailing #Navigation #Yachtmaster
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Navigating the high seas means precision is everything! 🌊 So, I created a Python script to filter my sextant readings on my #YachtmasterOcean passage from the Azores to Fernando de Noronha 🧭✨ Say goodbye to outliers and hello to a clean average! Now I can trust my stars (and my code) just a little bit more. Check it out here: https://github.com/kevinveenbirkenbach/sextant-averager #CelestialNavigation #Python #Sextant #OceanPassage #Sailing #Navigation #Yachtmaster
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🚢 Ahoy! I just launched nautical-waypoint-relative-calcs 🧭🌊 A handy tool for turning waypoints & timestamps into accurate course, distance, & speed (in knots!). Built this to help me place my estimated position for #CelestialNavigation on my #Yachtmaster Ocean Passage due to...well, my logbook's “creative” logging 📝. If you’re navigating without speed logs, check it out! ⚓️
🔗 https://github.com/kevinveenbirkenbach/nautical-waypoint-relative-calcs/
#SailingLife #OpenSource #Python #Nautical #Navigation #Sailing #CelestialNavigation
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🚢 Ahoy! I just launched nautical-waypoint-relative-calcs 🧭🌊 A handy tool for turning waypoints & timestamps into accurate course, distance, & speed (in knots!). Built this to help me place my estimated position for #CelestialNavigation on my #Yachtmaster Ocean Passage due to...well, my logbook's “creative” logging 📝. If you’re navigating without speed logs, check it out! ⚓️
🔗 https://github.com/kevinveenbirkenbach/nautical-waypoint-relative-calcs/
#SailingLife #OpenSource #Python #Nautical #Navigation #Sailing #CelestialNavigation
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🚢 Ahoy! I just launched nautical-waypoint-relative-calcs 🧭🌊 A handy tool for turning waypoints & timestamps into accurate course, distance, & speed (in knots!). Built this to help me place my estimated position for #CelestialNavigation on my #Yachtmaster Ocean Passage due to...well, my logbook's “creative” logging 📝. If you’re navigating without speed logs, check it out! ⚓️
🔗 https://github.com/kevinveenbirkenbach/nautical-waypoint-relative-calcs/
#SailingLife #OpenSource #Python #Nautical #Navigation #Sailing #CelestialNavigation
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🚢 Ahoy! I just launched nautical-waypoint-relative-calcs 🧭🌊 A handy tool for turning waypoints & timestamps into accurate course, distance, & speed (in knots!). Built this to help me place my estimated position for #CelestialNavigation on my #Yachtmaster Ocean Passage due to...well, my logbook's “creative” logging 📝. If you’re navigating without speed logs, check it out! ⚓️
🔗 https://github.com/kevinveenbirkenbach/nautical-waypoint-relative-calcs/
#SailingLife #OpenSource #Python #Nautical #Navigation #Sailing #CelestialNavigation
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🚢 Ahoy! I just launched nautical-waypoint-relative-calcs 🧭🌊 A handy tool for turning waypoints & timestamps into accurate course, distance, & speed (in knots!). Built this to help me place my estimated position for #CelestialNavigation on my #Yachtmaster Ocean Passage due to...well, my logbook's “creative” logging 📝. If you’re navigating without speed logs, check it out! ⚓️
🔗 https://github.com/kevinveenbirkenbach/nautical-waypoint-relative-calcs/
#SailingLife #OpenSource #Python #Nautical #Navigation #Sailing #CelestialNavigation
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"When True Altitude 🌊 dips low beneath the Observed sky ☁️,
The Intercept whispers, 'Toward we fly' ✨.
But when True Altitude ⛰️ rises, towering high,
The Intercept calls, 'Away we must lie' 🌬️." - https://chatgpt.com/share/6719a349-2e48-800f-b0e8-11649b4a971b#CelestialNavigation #TrueAltitude #SextantSkills #SailingLife #NavigatorLife #OceanAdventures #SeafarerWisdom #Intercept #SailingPoetry #MaritimeMagic #SailingCommunity #NauticalKnowledge
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"When True Altitude 🌊 dips low beneath the Observed sky ☁️,
The Intercept whispers, 'Toward we fly' ✨.
But when True Altitude ⛰️ rises, towering high,
The Intercept calls, 'Away we must lie' 🌬️." - https://chatgpt.com/share/6719a349-2e48-800f-b0e8-11649b4a971b#CelestialNavigation #TrueAltitude #SextantSkills #SailingLife #NavigatorLife #OceanAdventures #SeafarerWisdom #Intercept #SailingPoetry #MaritimeMagic #SailingCommunity #NauticalKnowledge
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Brought my #sextant to #FortMcHenry for some #celestialnavigation. Got my latitude within ~3km and longitude with ~18km. The latter would have been better, but I was using my cyclecomputer for a timepiece, and it doesn't report seconds.
I also sighted the Key Bridge while I was out there, got my distance within 1%. Math rules.
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STAR TRACKERS: TELLING UP FROM DOWN IN ANY SPACE
https://hackaday.com/2020/04/02/star-trackers-telling-up-from-down-in-any-space/
#CelestialNavigation #Navigation #Astrogation -
STAR TRACKERS: TELLING UP FROM DOWN IN ANY SPACE
https://hackaday.com/2020/04/02/star-trackers-telling-up-from-down-in-any-space/
#CelestialNavigation #Navigation #Astrogation -
STAR TRACKERS: TELLING UP FROM DOWN IN ANY SPACE
https://hackaday.com/2020/04/02/star-trackers-telling-up-from-down-in-any-space/
#CelestialNavigation #Navigation #Astrogation -
STAR TRACKERS: TELLING UP FROM DOWN IN ANY SPACE
https://hackaday.com/2020/04/02/star-trackers-telling-up-from-down-in-any-space/
#CelestialNavigation #Navigation #Astrogation -
STAR TRACKERS: TELLING UP FROM DOWN IN ANY SPACE
https://hackaday.com/2020/04/02/star-trackers-telling-up-from-down-in-any-space/
#CelestialNavigation #Navigation #Astrogation
