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    Re: Lat/Long by Noon Sun
    From: George Huxtable
    Date: 2009 Apr 27, 23:51 +0100

    Gary LaPook had suggested that these pages-
    would be of interest in showing what could be achieved in measuring
    longitude-around-noon from equal-altitude observations of the Sun. However,
    I hadn't understood the point he was making. He answers-
    "Well I was impressed by the level of accuracy they achieved since it
    is much better than the 5 nm level of accuracy that has been discussed
    lately using sun sights around the time of noon."
    Ah! Now I follow, and fully agree with Gary. But really, it shouldn't be a
    surprise. It simply shows the precision that's obtainable when observations
    are taken at well-separated times, so that the Sun has very different
    azimuths, in the traditional way that mariners have always done such a job.
    And highlights the sacrifice in accuracy that results from trying to confine
    those observations to a short interval around noon. The contrast is
    contact George Huxtable, at  george@hux.me.uk
    or at +44 1865 820222 (from UK, 01865 820222)
    or at 1 Sandy Lane, Southmoor, Abingdon, Oxon OX13 5HX, UK.
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