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    Re: Longterm Sun's GHA and Dec: what's under the hood?
    From: Greg Rudzinski
    Date: 2018 Dec 6, 13:30 -0800

    Tony,

    It is just a way to correct for the four year cycle of the Nautical Almanac and some small corrections due to aberration & nutation. Table 4a only needs to be worked with nearest whole hours to correct Orbit Time and Declination.  Then just do a GHA table c.&d. look up to sum with the corrected Orbit Time for the correct GHA. 

    Greg Rudzinski

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