Monthly Notices Volume 60; Containing Papers, Abstracts of Papers, and Reports of the Proceedings of the Society (Paperback)

This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1900 Excerpt: ...circle by Drs. Bruns and Peter in the years 1868-72 and 1883-93. The majority of the stars are observed twice, but a considerable proportion of the stars are observed oftener. A comparison with the Greenwich new Ten-year Catalogue, 1890, shows a difference of "'05 in the Right Ascensions and--o"-3 in the Declinations. There appears to be no systematic difference either in R.A. or Decl., depending on the Right Ascension. The mean discordance between the two catalogues from comparisons of the 160 stars common to them is "'039 in R.A., and o"-49 in Decl. p. w. D. Double Stars. As in previous reports the work is arranged under the two heads, "Observation" and "Calculation." Observation.--Mem. R.A.S. Vol. liii. contains measures of 161 pairs made with an 8-inch Cooke refractor in the years 1893-96 by Mr. W. Coleman; also of 98 pairs made by Mr. Maw with an 8-inch formerly used by Dawes. This set brings Mr. Maw's measures up to 1808. Monthly Notices JK.A.S. 1899 April.--Measures of 73 pairs made at Shanghai by Mr. J. L. Scott with a 5-inch refractor; also the mean results of micrometric measures of 420 pairs made with the 28-inch Greenwich refractor during the years 1896, 1897, 1898. Astronomical Journal.--No. 429 contains measures of 83 close pairs made at Lick by R. G. Aitken. (This set was unfortunately omitted in the last Report.) No. 462.--Measures of Procyon by E. E. Barnard. No. 468.--Measures of Herculis by T. Lewis (1894-99). Astronomische Jfachrichten.--No. 3537 contains W. Schur's measures of 70 Ophiuchi in 1898, No. 3558 a catalogue of 132 new doubles (Hough 491-622), and a good set of measures of 255 other pairs by G. W. Hough with the i8 -inch Dearborn refractor. No. 3563.--M. Sola give...