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by brohee 6 days ago
Celestial Navigation is also doable even in daylight nowadays, e.g. https://sodern.com/en/ranges/astradia
2 comments
labcomputer 6 days ago
It's been doable since the 1940's.

https://patents.google.com/patent/US2981843A/en

link
throw0101c 6 days ago
Will that come as an option for my RAV4 or F-150? How about my Cessna?

Will it help keep my NTP/PTP masters sync'd?

link