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    Re: Bowditch Finds Error
    From: Dan Allen
    Date: 1999 May 08, 6:26 AM

    So Bowditch was wrong about Moore being wrong?
    
    -----Original Message-----
    From  Gordon Talge [mailto:gtalge{at}PE.NET]
    Sent: Friday, May 07, 1999 11:02 PM
    To: NAVIGATION-L{at}LISTSERV.WEBKAHUNA.COM
    Subject: Bowditch Finds Error
    
    
    In the first part of the 1984 edition of Bowditch where it tells
    about the him and his family, it talks about an error found by
    Bowditch in the 13th edition of "The New Practical Navigator" by
    Moore, dated 1798.  To quote, "The most significant error was listing
    the year 1800 as a leap year in the table of the sun's declination.
    The consequence was that Moore gave the declination for March 1, 1800,
    as 7degs 11mins.  Since the actual value was 7degs 33mins, the calculation
    of a meridian altitude would be in error by 22 mins of latitude."
    
    Interestingly enough, I have a copy of the Moore's book dated Jan. 30, 1798,
    unfortunately the title pages are missing from the book, along with his
    picture, but the preface states that the book has been through 12 previous
    editions.
    
    I checked the "error" and found that 1800 is not listed as a leap year and
    it gives the correct declination for March 1, 1800 as 7degs 33mins South.
    
    -- Gordon
    
    
                                         ,,,
                                        (. .)
             +-----------------------ooO-(_)-Ooo----------------------+
             |  Gordon Talge WB6YKK            e-mail: gtalge{at}pe.net  |
             |  Department of Mathematics      QTH: Loma Linda, CA    |
             |  Notre Dame High School         Lat.  N  34� 03.1'     |
             |  Riverside, CA 92506            Long. W 117� 15.2'     |
             |  http://www.pe.net/ND                                  |
             +--------------------------------------------------------+
    

       
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