A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Ageton Classic Sight Reduction Table Prototype
From: Greg Rudzinski
Date: 2015 Oct 25, 16:26 -0700
I haven't had the chance to do an Ageton Bayless reduction. I'm guessing that it is another variation of the split triangle formula. Ageton Classic uses the standard sin cos single triangle formula. The natural sin cos tables are needed to convert directly from a csc sec log value to a natural sin cos. This saves a table and a step.
From: Stan K
Date: 2015 Oct 25, 13:50 -0400
How does this differ from the Ageton-Bayless compact version of H.O. 211? I see you have sin and cos values, but I'm not sure why. They are needed to create the A and B values, but are not used in the computation of intercept or azumuth. I also see the B value has tenths, where Ageton-Bayless rounds to whole numbers.
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