A General Catalogue of Double Stars Within 121 of the North Pole; The Catalogue.-PT.2 Notes to the Catalogue. Sherburne Wesley Burnham
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Author: Sherburne Wesley Burnham
Number of Pages: 52 pages
Published Date: 01 May 2012
Publisher: Rarebooksclub.com
Publication Country: Miami Fl, United States
Language: English
ISBN: 9781236002051
File Name: A.General.Catalogue.of.Double.Stars.Within.121.of.the.North.Pole;.The.Catalogue.-PT.2.Notes.to.the.Catalogue.pdf
Download Link: A General Catalogue of Double Stars Within 121 of the North Pole; The Catalogue.-PT.2 Notes to the Catalogue
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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. 1906 Excerpt: ...486; IXII, 383)... Espin (Mon. Not. LXIV, 676)... (See p. 1071) 4449. Argus 285. Dunlop 61'. This Star is No. 61 of - S-: Dunlop's Catalogue of Double Stars (Mem. R. A. S. III). Dif. R. A. = 3.o5. There is some error in this place given from Dunlop. I have looked for this star several times, and am certain there is nothing in, or near this place. No bright star near. The nearest pair I could find at all corresponding was H 4035 (Argus 274) 1317: 30' Ji...9. This is, R. A. 7h58, n24"; Decl.-327'. sa' 4477. t Cancri. 2 1196. (= Jf.1. 04 = 9 III. 19= Shgo.) A well-known triple system. The orbit of the close pair is as accurately determined as that of any observed binary. More than one revolution has been completed since the measures of Struve. Commencing with 1826 we have a nearly continuous series of measures by the best observers down to the present time. The only way to improve the elements of the orbit is to confine the investigation to observations of this character, rejecting altogether from consideration the great mass of micrometrical work, which is more or less incomplete, and uncertain in value. It seems unnecessary to give here even a selected number of the best measures. On the accompanying diagram the following positions are shown: 1826-1836 2 1880-1890 HI 1840-1874 02 1892 /3 1875-1878 A 1897-1903 A, Hu 780 The third star, C, has a slow retrograde motion about AB, the mean annual motion being about o?5, with no sensible change in the distance. The diagram shows 52 yearly SCALE Cancri. A and B The following orbits have been computed, the date of the last measure used being given in the first column: Orbits 1875-1878 1880-1891 positions of this star between 1821 and 1891 by four of the leading observers: 1821-1836 2 8 18...
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