Page:Popular Science Monthly Volume 47.djvu/212

202 and eight, distance 55″, p. 144°, colors finely contrasted, pale yellow and red.

Much more interesting, however, is 70, a binary whose components have completed a revolution since their discovery by Sir



William Herschel, the period being ninety-five years. The magnitudes are four and six, or, according to Hall, five and six, distance in 1894 2·3″. Hall says the apparent distance when the stars