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    Re: Index Error
    From: Gary Harkins
    Date: 2004 May 5, 19:05 EDT
    In a message dated 5/5/2004 10:21:53 AM Eastern Standard Time, enoid{at}NUNANET.COM writes:
    I am baffled.  Additional comments welcome.
     
     
    Another source of error could be refraction.  When calculating the semi-diameter you should do it holding the sextant horizontal.  This eliminates the refraction difference between the upper and lower limbs.
     
     
    Gary Harkins C400 #140 "Cygnus"
    Website   http://www.hometown.aol.com/htycgary/myhomepage/index.html
    Harbour Towne Marina, Muskegon, Michigan Slip C-28
    Harbour Towne Yacht Club, Life Member
    C400 National Association
    United States Power Squadrons-JN

    NRA Life Member
    MCRGO (Michigan Coalition for Responsible Gun Owners)
    JPFO (Jews for the Preservation of Firearms Ownership)
       
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