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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Pub. 249 and the spherical earth
From: Greg Rudzinski
Date: 2017 Dec 20, 09:15 -0800
From: Greg Rudzinski
Date: 2017 Dec 20, 09:15 -0800
Bob,
I believe deviations from a perfect sphere are handled by the chart not sight reduction tables. See appendix X in Bowditch.
https://en.wikipedia.org/wiki/Geodesy
Greg Rudzinski