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    Re: Calibrating a sextant scale
    From: Alexandre Eremenko
    Date: 2007 Nov 21, 11:37 -0500

    
    Fred,
    
    > Fred Hebard wrote:
    
    > > The problem is getting a precise star-to-star
    > > distances. I don't believe anybody claims to
    > > have solved that
    > > problem.
    
    I am not sure that I understand which problem exactly
    you address here. COMPUTING the star-to-star distances
    for given moment at given position is not a problem at all.
    With all corrections.
    
    But MEASURING them with a sextant with sufficient
    precision to obtain your sextant
    calibration (arc correction)
    seems (to me at least) a hopeless problem.
    I spent several years, making hundreds of observations
    trying to do this. It just does not work.
    
    Alex.
    
    
    
    
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