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    Re: Excel Almanac
    From: Herman Dekker
    Date: 2021 Jan 6, 07:13 -0800

    Hello Sean,
    I changed only the UT to 00:00:00 (on 1 jan 2021) the calculated Sun GHA is 179°06,9' that's not the same as I get from other sorces.
    On average (10 sources) it is 179°08,5' so what is, or do I wrong?
    I tested this because by conincidence a few days ago  I was on the webstite of Johannes Hornbach. TheNauticalAlmanac.com
    He has a nice collection off Celestial tables etc. and a Forum that nobody seems to use.
    His complete nautical Almanac for 2021 has as GHA value 179° 08,2' I attended him on this (also) wrong value.
    He thought it is the PYEem program that generates the wrong value.
    His only Sun Almanac give the most common 179°08,5' value. Generated with one other program.
    So Sean can you check your GHA value, or inform me how to use the program.

    Kind regards

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