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    Re: Index Error
    From: Gary Harkins
    Date: 2004 May 5, 18:59 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.
     
     
    One mistake you are making is subtracting out the index correction.  Since you are joining opposite limbs of the sun, it is the total distance that you are concerned about.  For example, if you had a really terrible index correction of -1 degree you would have both limb sightings on the arc.  For determining semi-diameter this would not matter as it is the total difference divided by four.  Applying the index correction when you are trying to figure out the semi-diameter not proper.  For normal sights it is of course necessary.
     
     
    Gary Harkins C400 #140 "Cygnus"
    Website   http://www.hometown.aol.com/htycgary/myhomepage/index.html
    Harbour Towne Marina, Muskegon, Michigan Slip C-28
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