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» Online Classroom   » Celestial Navigation   » Public Discussion of Cel Nav   » The celestial sphere

Author Topic: The celestial sphere David Burch posted January 15, 2024 04:51 PM                   I just had occasion to reference an article from some years back and going over it, I realized it might be worthwhile sharing here. https://davidburchnavigation.blogspot.com/2014/02/the-celestial-sphere-may-it-rest-i n.html I will add this to the Lesson 1 Optional Resources. From: Starpath, Seattle, WA

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