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Henning Umland's on-line almanac
From: Bill Lionheart
Date: 2016 Feb 23, 07:39 -0800
From: Bill Lionheart
Date: 2016 Feb 23, 07:39 -0800
Using Henning Umland's Almanac page http://www.celnav.de/longterm.htm for today 23 Feb 2016 at 12:06:49 I get GHA of the Sun as 360° 00' 00'' and Declination as 10° 45' 39'' S.
I am puzzled that my sextant altitude using an artificial horizon seems to be out out by 2 degrees 32 minutes. Can someone check if they agree with Henning. I am using Deta T as 68.2s. If it is right I have to find where else my error lies and perhaps if it is a short circuit between the ears.
Thanks for any suggestions
Bill