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    Re: Quartz article: reinstating celestial...
    From: Bob Goethe
    Date: 2015 Oct 19, 11:16 -0700

    >>I'm not convinced that taking a sight through a glass window would be a good idea<<

    I think it depends on the character of the particular window you are dealing with.  I have taken some hundreds of sights out the window of my living room (which, in an Alberta winter is the best way to do it) using an artificial horizon.  I frequently get LOPs that lie within 1 nm of my GPS-position.  This result is consistent, regardless of the altitude of the celestial object I am shooting.

    So if there are imperfections in the glass of my front window, they are pretty minor.

    Bob

       
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