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Hi Alex,great to see you are still doing Lunars. I have worked both your
sets. Your 1st set I plotted a line of best fit and worked obs no. 3 which
worked out to be GMT 2-58-05 vs. true GMT of 2-55-35 which equated to a
distance error of 1.2min of arc. 2nd set of obs resulted in sights 2,4, and
5 in a straight line with GMT 3-17-07 vs true  GMT 3-15-38 for distance
error of 00.7min of arc both solved via Bruce Stark book. Thanks for your
post and would like to see feedback from you and/or other folks. You must be
proficient in vernier reading judging the one minute average between shots!
>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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