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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Logic of shades
From: Paul Hirose
Date: 2018 Oct 27, 09:43 -0700
From: Paul Hirose
Date: 2018 Oct 27, 09:43 -0700
On 2018-10-26 9:15, alexander duytschaever wrote: > for now, my answer is that a SR can serve for interpolations; it doesn't have enough digits to provide sufficient accuracy. or maybe with A LOT of sightings, who knows... Last year I tested a 10 inch slide rule with 10 sight reduction problems generated at random by computer. Root mean square altitude accuracy with the Bygrave formulas was 2.5 arc minutes. http://fer3.com/arc/m2.aspx/Bygrave-sight-reduction-slide-rule-Hirose-dec-2017-g40895
