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    Re: Easy Lunars in 1790
    From: Alexandre Eremenko
    Date: 2006 Apr 27, 11:34 -0400

    Dear Ken,
    
    My question is not directly related to your message;
    my principal interest in the procedure of measuring
    distances rather than reduction:
    
    > for the first time last night. I took a couple of lunars that David
    > Thompson had taken in 1801.
    
    Could you post the data of your lunars?
    GMt, DR position, sextant reading, and IC
    and the brand of sextant used?
    
    How your error in longitude compares with Thompson's?
    Can you tell what part of the error comes from Thompson's
    almanac and reduction and what part comes from observation?
    
    Alex.
    
    
    

       
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