NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Pub 229
From: Gary LaPook
Date: 2017 Dec 8, 18:35 -0800
From: Gary LaPook
Date: 2017 Dec 8, 18:35 -0800
You get the horizontal parallax of the moon from each hourly entry for the moon. Remember, refraction correction is alway minus and the parallax in altitude correction is always plus when applied to the obsserved altitude. When applied to Hc, which is the way it is done in flight navigation, the signs are reversed.
gl
