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    Re: V-Correction for Sun? Answer from UKHO...
    From: John D. Howard
    Date: 2016 Oct 13, 08:26 -0700


    I think you are a little confused.

    One second of TIME is .25 minutes of arc.  The Nautical Alamanac was ( and still is ) for Navigators.  When using a hand held sextand on a boat and timing your shot you usually record TIME to one second.

    Cel Nav is not GPS or surveying.  How would you time a sextant shot to better than one second?  If you are on land using a theodolite or total station and are using a 1/100 stopwatch then do not use the Nautical Almanac.  Use MICA or the JPL on-line Horizons.

    John H.

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