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    Re: Lunars question for Frank
    From: Frank Reed CT
    Date: 2005 Oct 6, 18:49 EDT

    Bill you asked:
    "Has the angular distance off  in longitude been adjusted by the program for
    latitude, therefore should be  translated directly into nautical miles by
    converting to decimal degrees and  multiplying by 60, or should an adjustment
    be made for latitude when  determining nautical miles off?"
    
    It's approximate error in longitude so  multiply by cos(Lat) if you want
    nautical miles. Actually, the code is doing  nothing more than multiplying your
    distance error by 30. One of these days I'll  modify it to give a more accurate
    longitude error (which depends on the rate of  change of the actual distance
    but is generally close to  30).
    
    -FER
    42.0N 87.7W, or 41.4N  72.1W.
    www.HistoricalAtlas.com/lunars
    
    
    

       
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