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    Re: Corrections for latitude when taking sights
    From: Brian Walton
    Date: 2019 Mar 12, 00:31 -0700

    Hello,

       The watch time of sunrise/sunset, at a place 90° different in latitude from your own, gives the time when the Sun is due east or west of you at your own latitude.  Prime Vertical, the best time to do time sights for longitude by chronometer, and reduce and simplify the wretched mathematics involved,

    Brian Walton.

       
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