Publications of the Yerkes Observatory of the University of Chicago Volume 1 (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: ...)... A and C This is in the nebula, Mess1er 78. The wide stars had been remarked by H. The close pair was discovered with the 18j.inch. There is no evidence of motion. All the measures of AC are given. 0(x)...0'...03... 0(3114)...0(/W'./-O.n)... P 892. D.M. (17") 1006 R.A. 5h 40m 40s ) Decl. + 17" 41' o u 1879.09 272.8 1.19 8.8... 13 2- P 1891.89 276.2 1.15 9.0...10.4 2- p Discovered with the 18.inch. It is 12s / 130 Tauri. 0 (xm)...03...0 (3114)...0 (Pub. L. O. 11)... Discovered with the 6.inch. Evidently without change. This star is Lalande 11086. In 1846 Jacob found a pair, the rough place of which reduced would give for 1880, R.A. 6h 5m: Decl.--14 35' (Mem. R. A. S. xvII). He states that he subsequently looked for it several times, and could not find it. From a careful search I am certain there is no such pair in or near his place. There is no doubt now of its identity with /? 94, Jacob having made an error of about 20 m in his R.A. This is confirmed by his description of the pair, 184?o: 1f8: 6%...9. P (11)... p (Mon. Not. Xxxm, 437)... 03... A (1)...CinS... Lv'... Tarrant (2991)... Jones (Proc. Haverford Coll. Obsy. 1892)...Cogshall ( )...J The nearest companion was discovered with the 6.inch, and in measuring that Knott detected the third star C. Auwers gives the proper motion of the principal star of029 in the direction of 84?2. With this value, and the relation of AB from the measures of J in 1875, tne smaller component, if fixed, should be, for 1898.17, 18g?4: 3f27. The measures show no such change in the angle, and point to a common proper motion, so far as A and B are concerned. The observations are not sufficient to decide as to C. P()...p(Mon. Not. xxx111, 351)...0 (3114;...0 (Pub. L. O. n)...Knutt (Mem. R. A. S. Xl11...