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Diameters of Mars, at the Opposition of 1881–82

✍ Scribed by C. W. Pritchett

Publisher
John Wiley and Sons
Year
1885
Tongue
English
Weight
95 KB
Volume
111
Category
Article
ISSN
0004-6337

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✦ Synopsis

At the o!iliosition of 1879-80, I measured with the large filar-micrometer of our refractor, a series of groups of the diameters of Mars. These were reduced by Prof. Henry S. Pritchett, (now of Washington University, Saint 1,ouis) and were published in A. N. 2309. At the next opposition, I measured with the same instrument, a much larger series of groups, the whole number of independent measures being 960, or 480 double measures. To publish the whole series of groups, including times, position angles, hour angles, observed diameters and corrections, would require too large a space. I have therefore collected the

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