18/18 It will be found above Regulus, and is the brightest star on the blade of the Sickle. The components are separated by about 3-1/5 seconds, the larger of the second, the smaller of the fourth magnitude; the former yellow-orange, the latter greenish-yellow. It will be a pretty severe test for our observer's telescope, the components being only 2".4 apart, and the smaller scarcely exceeding the eighth magnitude. The brighter (fourth magnitude) is pale yellow, the other light blue.. |