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    Re: Noon Longitude by Equal Altitudes
    From: Robin Stuart
    Date: 2021 Nov 24, 13:14 -0800

    David,
              I'm not sure what level of accuracy you are aiming for but your calculated meridian transit time doesn't appear to take account of the Sun's changing declination, currently 0.5' per hour. This was discussed here http://fer3.com/arc/m2.aspx/Longitude-Equal-Altitudes-Stuart-jul-2020-g48277
    Regards,
    Robin

       
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