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    Declination and GHA: Nautical Almanac procedures
    From: Mike Freeman
    Date: 2018 Nov 14, 08:34 -0800

    Would appreciate it if you could advise if it appears that I have understood correctly..........

    GHA
    Nautical Almanac
    Select date & hour
    Increments and corrections tables
    Increments are minutes and seconds additional to hour and are always added
    "v" corrections are applied when the passage of the HB across the sky is not constant throughout the hour in which the increments are applied.
    "v" corrections are added EXCEPT for VENUS when they can be + or -
    No "v" corrections for Sun or Aries

    Declination
    Nautical Almanac
    Daily pages
    Date & hour
    Increments and corrections
    No increments
    The "d" correction is the only correction required
    "d" corrections are 50/50 + or -
    Inspect the declination column to determine whether declination is increasing or decreasing and apply "d" correction accordingly
    "d" corrections are given for 3 days for Sun and Planets and are correct for the middle day
    "d" corrections for Moon are given hourly

    Thanks

    Mike

       
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