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    Re: Finding the true horizon
    From: Paul Hirose
    Date: 2013 Mar 27, 13:01 -0700

    A couple times over the years I have advocated a visual estimate of the
    horizon as a simple way to practice inland with a marine sextant.
    
    http://fer3.com/arc/m2.aspx/marine-sextant-on-land-Hirose-oct-2008-g6384
    
    For hobbyists who want "the marine experience", this is more realistic
    than an artificial horizon. The process of finding a star, bringing it
    down, and swinging the sextant to attain the correct alignment is the
    same as at sea.
    
    Of course an artificial horizon is more accurate. But I only use my
    sextant at home, for fun. In my experience, a liquid artificial horizon
    turns fun into work. I have never tried the mirror type, but I'm sure it
    would be maddening to fiddle with a level and screws on a cold evening
    just to get a few star shots.
    
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