Looking for a sky event this week? Check out our full Sky This Week column.  June 19: Dione crosses due north of Saturn Highest in the south around 10:30 P.M. local daylight time is the constellation Libra, whose brightest star is Beta (β) Librae, also called Zubeneschamali. Nearly 12° below (south) of this star at that time Continue reading "The Sky Today on Saturday, June 20: Libra’s Ghost Cluster" The post The Sky Today on Saturday, June 20: Libra’s Ghost Cluster appeared first on Astronomy M