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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Testing pocket sextant
From: Alexandre Eremenko
Date: 2006 Jun 14, 02:37 -0400
From: Alexandre Eremenko
Date: 2006 Jun 14, 02:37 -0400
Bill, > My impression at this stage of my development (outside of the problems > inherent in observing from a medium-displacement small craft, almanac > roundings, and blunders) is that accurate dip (both knowing your exact > height vs. the horizon and atmospheric anomalies) is the major stumbling > block to 0.2' to 0.4' accuracy. This time (with a pocket sextant) were are talking of 1' accuracy. > I reference Frank's beach shots of Chicago from an Indiana shore, and our > inability to resolve the discrepancies. I don't remember any Frank's beach shots. Can you give a reference? > I am excited about George's latest > find.) Which one? A.
