... In the Heart of the Virgo Cluster . ... The Virgo Cluster is so close that it spans more than 5 degrees on the sky - about 10 times the angle made by a full Moon. The Southern Cross in a Southern Sky . ... On the upper left of this image are the four stars that mark the boundaries of the famous Southern Cross. ... Sometimes the sky itself is the best show in town. Last January, people from Perth, Australia gathered on a local beach to watch a sky light up with delights near and far. ...