Publications. Astronomical Series Volume 3-4

Publications. Astronomical Series Volume 3-4

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1908 edition. Excerpt: ...A. Aitken on three nights in 1900 made the magnitudes slightly unequal and reversed the quadrant. Since no one could possibly mistake the quadrant now, I think it very probable that there has been some change in the brightness of the fainter star. The pair appears to be fixed. 299. Harvard 23. 1908.753 134?o6 36T24 9.5 12.0 P 4 1908.777 133.14 36.00 9.5 12.0 P 4 1908.76 13 ?6 36T12 9.5 12. 2(a) (a). Identified from a chart, = DM + 3(66). The prior measures are: 1868.87 138?2 22T29 9.5 12. 1 Harvard. 1903.79 134.0 24.93 1 Miller. There seems to be some error in the distances; I could find no star in the vicinity corresponding to them. 304. 23 8. 1906.782 144?72 17T20 P 4 1906.785 145.78 16.88 R4 1906.807 144.31 16.91 P 4 1906.79 144?9 17T00 3 But few prior measures. Apparently fixed. 311 and 321. Harvard 25 = Harvard 28. R.A. = oh 29m 27s; Deel. = + 2 40' 1908.668 339?40 22T79 8-5 9-5 P 4 1908.689 339.77 23.18 9.0 9.8 P 4 1908.68 339?6 22T98 8.8 9.7 2 The star is identical with Harvard 28, = DM + 2(7 ), from which the above position is derived. This was described as "np, 12," 9-9.5 mag.," when inadvertently registered as new. There is no doubt that the pairs are identical. The Harvard estimations of distance are apt to be greatly in error. 338. Harvard 30. 1908.865 42? 6T26 9.5 9.6 R 4 1908.873 41.66 6.40 9.5 10.o R 4 1908.914 42.00 6.00 9.5 9.8 R 4 1908.917 43.55 6.19 9.6 10. R 4 1908.89 42?4 6T21 9.5 9.8 4 There are very few prior measures: no change is indicated. 341. Harvard 31. 1908-753 397-12 30:50 7.0 11.5 R4 1908.760 307.57 30.70 7.0 12.0 R 4 1908.76 307? 30T60 7.0 .7 2 There is no evidence of motion. 344. Harvard 32. The position given in...
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Product details

  • Paperback | 84 pages
  • 189 x 246 x 4mm | 168g
  • Rarebooksclub.com
  • United States
  • English
  • black & white illustrations
  • 1236862740
  • 9781236862747