A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: Greg Rudzinski
Date: 2015 Dec 1, 12:05 -0800
There is more. If averaging is needed then multiple observations of a PV can be made if the Hp PV altitude is adjusted for one minute of time change. The formula for this at PV is (Cos Latitude )(15') = Minutes of arc change per minute of time. See example done this morning which averages five observations. Results were very close to actual longitude.
From: Francis Upchurch
Date: 2015 Nov 30, 21:46 -0800