[/caption] Stephen Mounioloux captured this photo of Messier 45 or the Pleiades on September 30, 2011 in Anza, California. Messier 45 is a usual night sky view during winter in the Northern Hemisphere and during summer in the Southern Hemisphere. The cluster contains middle-aged hot B-type stars. It is also called Seven Sisters. Here are … Continue reading "Astrophoto: Messier 45 by Stephen Mounioloux"