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    Lunars: C.Plath vs SNO
    From: Alexandre Eremenko
    Date: 2007 Aug 23, 19:51 -0400

    
    Here are some Lunars I took yesterday before
    making my final decision to cell my C. Plath:-)
    (A brass vernier sextant 7 1/2 inch with 3 scopes, late XIX
    century. Is anyone interested? The reason I am
    selling is that I already have 5 sextants and want to
    try another one. They just take too much space:-)
    
    Aug 23 (Greenwich date), Jupiter at approx 13 degrees.
    T=80F, P=740mm, fair weather, hot and humid, moscitos:-)
    
    C. Plath, 13x scope IC=-30", Lat=40d27'2, Long=86d55'8
    GMT, Sextant reading, Error:
    
    2:49:35, 14d7'10", 0'1
    2:53:35, 14d8'50", 0'5
    2:56:10, 14d9'20", 0'2
    2:58:00, 14d10'00", 0'4
    3:00:35, 14d10'20", -0'1
    
    Average error: 0'22, sigma 0'23
    
    SNO-T 7x scope: IC=-0'4:
    
    3:11:45, 14d13'2, -0.4
    3:13:35, 14d14'1, -0.1
    3:15:15, 14d14'8, 0.1
    3:16:05, 14d14'8, -0.1
    3:17:15, 14d15'1, -0.2
    
    Average error -0'14, sigma=0'18.
    
    Alex.
    
    
    
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