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    Re: Averaging
    From: Chuck Taylor
    Date: 2004 Oct 20, 20:41 -0700

    --- Gary LaPook  wrote:
    
    > Not to be too "nit picky" but it should be a plot of
    > a "small circle,"
    > not a "great circle."
    
    Oops.  Right you are.  A St. Hilaire line of position
    is an approximation to an arc of a circle of position
    with radius equal to the observed co-altitude (90 -
    observed altitude), and with its center at the
    geographic position of the body.
    
    Thanks for pointing that out.
    
    Chuck Taylor
     47d 55' N
    122d 11' W
    
    
    
    
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