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    Re: Old style lunar
    From: Alexandre Eremenko
    Date: 2004 Dec 9, 19:28 -0500

    Ken:
    
    On Thu, 9 Dec 2004, Ken Muldrew wrote:
    
    > Don't forget that his lunar position depends
    > on a time-sight measurement
    > as well as the lunar distance. His watch was often out by more
    > than 10
    > minutes each day, and the direction of error was unpredictable,
    
    Strange. If he could afford the best sextant, why did not he
    buy a better watch? I am sure in 1800, a watch keeping time to
    1 minute per day was not a luxury. Or am I wrong here?
    
    > Bruce Stark was kind enough to send me some pages
    > from the 1800 almanac
    > this past summer. Perhaps I can check a few entries
    > to see what Thompson
    > was up against.
    
    It would be very interesting.
    Perhaps Frank can also tell us what accuracy can be expected
    from his lunar "predictions" for 200 years ago.
    
    Alex.
    
    
    

       
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