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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Sextant Positions versus Map Datums?
From: Chuck Taylor
Date: 2002 Jan 15, 6:19 AM
From: Chuck Taylor
Date: 2002 Jan 15, 6:19 AM
Mike Wescott wrote: > Seven seconds of latitude is about 12 feet. Really? I figure that there are approximately 6076 feet per nautical mile, and one nautical mile per minute of latitude. Since one second is 1/60 of a minute, then 7 * (1/60) * 6076 = 709 feet. I think you divided by 60 one too many times. :-) Chuck Taylor Everett, WA, USA