NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: HO 249 Vol 1, epoch 2010, Typo
From: Dave Walden
Date: 2010 Aug 1, 16:17 -0700
From: Dave Walden
Date: 2010 Aug 1, 16:17 -0700
Isn't it really much easier to find the change in A with alt:
d A = d ALT * sin lat/sqrt [(cos lat) ^2 - (sin dec) ^2]
(at ALT = 90 deg)
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