Astronomy Image of the Day
Wild Duck Open Cluster M11
22 October 2000
D. F. Malin, AAO

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NASA Astronomy Image of the Day for 22 October 2000
Many stars like our Sun were formed in open clusters. The above open cluster, M11, contains thousands of stars and is just over three thousand light years distant. The stars in this cluster all formed together about 150 million years ago. The bright young stars in M11 appear blue. Open clusters, also called galactic clusters, contain fewer and younger stars than globular clusters. Also unlike globular clusters, open clusters are generally confined to the plane of our Galaxy. M11 is visible with binoculars towards the constellation of Scutum.
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Image and explanation courtesy of NASA Astronomy Picture of the Day





