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    Re: Captain Cook's Sep 07th, 1773 Lunar revisited
    From: Alexandre Eremenko
    Date: 2012 Jul 21, 05:40 -0400

    Paul,
    
    > This implies the altitudes were shot 3 or 4 minutes before the mid time
    > of the lunars. But I wonder, were the observers that dumb?
    
    They were not dumb. They knew what they were doing.
    A degree error in an altitude sight does not affect the lunar reduction.
    If there was one observer, it was natural to do the whole series
    of the lunars without interruption, and the altitude sights before
    or after that. Or one before and one after.
    
    After all, they did find their longitude to 5 miles accuracy,
    which is an excellent result. They were not dumb.
    
    Alex.
    
    
    
    
    

       
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