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    Ratio of variances
    From: Bill Lionheart
    Date: 2018 Nov 2, 07:40 -0700

    Can NavList members give a practical example where you might take sights for three or four bodies (average of several sights for each) and suspect that one of them is say half (or some other fraction) as accurate as the others?

    If you shot the moon, and two stars for example which do you think would be most accurate? Or maybe the horizon in one direction was a bit less distinct?

    I am mainly thinking of examples to give in a talk or article where the readers might not be so familiar with Celestial Navigation. I simply dont have the practical experience, but I am guessing if you have done fixes every day on a voyage, especially checking against GPS, you'd get a pretty good idea of the standard deviation?

       
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