M11, imaged by the European Southern Observatory’s 2.2-meter telescope at the La Silla Observatory in Chile, is an open star cluster. The blue stars near the center of the Wild Duck Cluster are young, hot stars. Image via ESO. Used with permission.The Wild Duck Cluster, also known as Messier 11 or M11, is a distant open star cluster. The cluster lies in the direction of the constellation Scutum the Shield. Its distance of 6,120 light-years means it’s quite faint. So, you’ll need binocul...
