Measures of Double Stars With the 40 Inch Refractor of the Yerkes Observatory in

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S W Sherburne Wesley Burnham

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(19)1252. The proper motion of A is small, 0'020 in 95?8.
H 2302. 71 Orionis RA. = 6" 7 m 46' ) Decl. = +19 12' \ 1900. 744 203U 29^20 . 780 202. 4 29. 38 1901. 32 204. 3 36. 74 The proper motion is very small, 0'015 in 136?3. The only measures are : 1783. 02 205? 37T25 In Tj. 1878. 18 205. 8 36. 57 In /3 S 829. 8. 9 ... 10. 2 ... 10. 4 Decl. = - 11 42' \ A and B 1900. 763 235? 5 17?69 . 780 235. 8 17. 93 1900. 76 202. 7 29. 29 H estimated the positions. The only measures are by Engelhardt, 202...?4 : 3K98( 1886. 21 )2n. The change is due to the proper motion of A, 0'203 in 213?3.
H 2315. 11. 7 . . . 11. 7 RA. =615"' 6 s / Decl. = - 7= 14' \ 1901. 796 3?1 6-'37 . 873 2. 1 6. 36 1900. 77 235. 6 17. 81 BandC 1900. 763 220?1 5^60 . 780 220. 7 5. 29 1900. 77 220. 4 5. 44 J could not see the smaller star. S found 217?7 : 4 '56 (1832. 69) 2n and 238?4 : 16^50 for AB, which indicate some change.
2861 RA. = 6 h 3" 36 s / Decl. = + 30 42' \ A and B 1900. 780 17?3 64. '92 1901. 720 17. 1 65. 79 . 722 16.

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