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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Sunset from a legal point of view
From: Paul Hirose
Date: 2023 Aug 24, 16:45 -0700
From: Paul Hirose
Date: 2023 Aug 24, 16:45 -0700
I forgot to say the Companion sunrise/set table was calculated for 51.5° N and 90°36′ zenith distance. That latter angle approximates the center of Sun, adjusted for horizontal refraction. (The numbers are my estimates and may be a little in error.) 1916 Annual Companion https://articles.adsabs.harvard.edu/cgi-bin/nph-iarticle_query?bibcode=1916Obs....39....1.&db_key=AST&page_ind=0&plate_select=NO&data_type=GIF&type=SCREEN_GIF&classic=YES -- Paul Hirose sofajpl.com