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A Cruising Guide for the Reluctant Mate


      

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Re: Index Error

From: Gary Harkins (no email)
Date: Wed May 05 2004 - 19:05:14 EDT

  • Next message: Richard Langley: "Voice of America Program on Navigation (Eleanor Cressy vs. GPS)"

    In a message dated 5/5/2004 10:21:53 AM Eastern Standard Time,
     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)


  • Next message: Richard Langley: "Voice of America Program on Navigation (Eleanor Cressy vs. GPS)"



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