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    Re: All Haversine Time Sight
    From: Brian Walton
    Date: 2018 Sep 21, 23:34 -0700

    Hello,

    I am at present afloat in my boat, in the eastern Atlantic.  The forecast is bad.  If I sink tonight, and make it into my liferaft, I will time the moment the rising sun lower limb reaches half a sun’s diameter above the horizon.

    No have sextant, no have versines.  My longitude will be sun GHA plus 90°.

    Brian Walton

    50N 01W

       
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