A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: Paul Jackson
Date: 2016 May 19, 22:59 -0700
Thank's for all your input Frank, and the next time I take sights using said near horizon I will apply some of your tips. I did an index error check using the two Sun tangenccy method which gave me an index corection of -1.9, but as you point out one should place little confidence in the numeral to the left of the decimal point.
Thanks Paul Jackson.