NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Lop
From: Stan K
Date: 2017 Apr 1, 20:59 -0400
From: Stan K
Date: 2017 Apr 1, 20:59 -0400
Gary,
Not quite the exact same data as you get for the Nautical Almanac. Two thing come to mind:
1) The GHA of the Sun can be different because the Nautical Almanac adjusts it to allow for not including the v correction. You can see differences up to 0.2'.
2) The Air Almanac rounds the GHAs and Decs of the planets and the Moon to whole minutes, where the Nautical Almanac has tenths of minutes for these bodies.
OK, I admit it. I am a nitpicker.
Stan
-----Original Message-----
From: Gary LaPook <NoReply_LaPook@fer3.com>
To: slk1000 <slk1000@aol.com>
Sent: Sat, Apr 1, 2017 5:10 pm
Subject: [NavList] Re: Lop
From: Gary LaPook <NoReply_LaPook@fer3.com>
To: slk1000 <slk1000@aol.com>
Sent: Sat, Apr 1, 2017 5:10 pm
Subject: [NavList] Re: Lop
The solution is really easy. Just download (for free) the complete Air Almanac for 2017 and use just the tabulations for "on the hour." You then have the exact same data you get from the Nautical Almanac. Then use the non-changing correction tables for working the sight as if you were using the Nautical Almanac. I've posted before the link where you download the Air Almanac.
gl
