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I have found on my photographs a small star of the 11th (photographic) magnitude which has a large proper-motion of about 10.3" a year in a direction almost due north. The star is yellowish, whiles its near neighbor, BD +4deg3560 (8.7m), is bluish white. On account of its color it is brighter visually than photographically, being about the 10 1/2 visual magnitude. The position of the star is: 1616.423 17h 53m 43.60s +4deg 27' 48.0" (epoch, RA, dec) It is 9.1s following and 51" north of 4deg3560, which Albany A.G.C 6005, and which in this paper I have called a. A comparison with the positions from the visual measures of 1916.423 we get the annual motion of 10.30" in the direction of 359.7deg. A comparison with a photograph taken with the 10-inch Bruce telescope on June 11, 1904, gives the annual motion of 10.36". A present this is the largest known proper-motion of a star. *%O NAME Barnard's Star
E. E. Barnard (Sat,) studied this question.