A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: Gary LaPook
Date: 2017 Dec 8, 22:44 -0800
I just took another look at the table I posted for parallax in altitude and I see that it includes the refraction correction. So, if you use this table instead of the P in A correction in the Air Almanac then you don't need to separately apply the refraction correction.