Items related to Star atlas containing maps of all the stars from 1...
Star atlas containing maps of all the stars from 1 to 6.5 magnitude between the North pole and 340 south declination, and of all nebulae and star ... of moderate powers; With explanatory text - Softcover
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. 1901 Excerpt: ...in Camelopardalis. Very large, rather elongated, moderately bright, with an increase of brilliancy at the centre. S Canis Minoris. Recognised as variable by Hind in 1856. At maximum it is sometimes 7, but often only 8 mag.; at minimum less than 11 mag. Period 330 days. a Geminorum (Castor). One of the most beautiful double stars in the heavens, 2-7 and 3 7 mags. It can be divided with a small telescope (distance 6"). Both stars give a greenish light. The period of revolution round their common centre of gravity is about 1000 years. Near by are two stars 10 and 11 mag. Belopolsky discovered in 1896 that the principal of a is a spectroscopic double star, of which the period of revolution is 2 91 days, but no telescope can separate the components. 1549 (2420), Star Cluster in Gemini. A beautiful object discovered by W. Herschel, 19 November, 1783. The stars are numerous and densely crowded. Diameter 6'. 2 1121, Navis. A double star, 7 and 7-5 mags., distance 7-5". Close by is the double star 2 1120, 6-5 and 9-5 mags., distance 19-6". This belongs to the following cluster. 1551 (2422), Star Cluster in Navis. A rich group, 15' in diameter, of small stars rather densely collected. Among them are some fairly brilliant stars. Discovered by W. Herschel, 4 February, 1875. a Canis Minoris (Procyon). A brilliant star 1 mag. Lamont found in its neighbourhood a feeble star of 11 mag., at d. = 57", p. = 262"; several still feebler stars in closer proximity to Procyon could not be recognised by Burnham in the 36-inch instrument. On the other hand, a star of 8'5 mag. at d. = 326", p. = 84", one of 9 mag., at d. = 384", p. = 282, and one 6 5 mag., d. = 643", p. = 100', have been discovered. The last-mentioned object is a double (2...
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- PublisherRareBooksClub.com
- Publication date2012
- ISBN 10 1130826317
- ISBN 13 9781130826319
- BindingPaperback
- Number of pages38
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