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    Re: Lunars -Venus!
    From: Jim Thompson
    Date: 2004 Apr 24, 07:25 -0300

    -----Original Message-----
    From: Navigation Mailing List [mailto:NAVIGATION-L{at}LISTSERV.WEBKAHUNA.COM]On Behalf Of Frank Reed
    Sent: Friday, April 23, 2004 11:05 PM
    To: NAVIGATION-L{at}LISTSERV.WEBKAHUNA.COM
    Subject: Re: Lunars -Venus!
     
    I did work your lunar just now (using my calculator at www.clockwk.com/cell/lunars.html , which is based structurally on Arthur Pearson's spreadsheet, and using almanac data from Omar Reis's online almanac) and the result indicates that your observation was short by about 3 minutes of arc. Did you use a shade to make Venus less dazzling? That 3 minute error corresponds to about 1.5 degrees error in longitude which puts you at sea off Inverness, Nova Scotia. Of course my clearing procedure may be in error. I just worked it up quick.

    Thanks Frank. I just shot it in a hurry for fun, but I am surprised that it seems to be 3' out.  I did not use a shade, and I did not use my distance glasses either.  I'll have to experiment with both.  The ground seemed rather solid, so I'm fairly certain that I wasn't floating around off Nova Scotia,. which implies that I'll have to work harder on my lunar accuracy :)
     
    Jim
       
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