NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Using Table 4 HO249 for Suns GHA and Dec.
From: Greg Rudzinski
Date: 2015 Oct 26, 10:44 -0700
From: Greg Rudzinski
Date: 2015 Oct 26, 10:44 -0700
Alex,
No formula is used. Extrapolated forward based on table values shown then checked by USNO web sight for future dates to verify result.
Greg Rudzinski
From: Alex H
Date: 2015 Oct 26, 00:52 -0700Hi Greg, could you please explain with what formula you do calculate these values briefly? Many thanks in advance! Alex