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Birthday · January 16, 1996

Wild Duck Open Cluster M11

January 16, 1996

When you were born, the Sun rose on a world that had never seen you before. Since then, every dawn has arrived in a universe subtly altered...

Wild Duck Open Cluster M11

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APOD published January 16, 1996. Credit: Anglo-Australian Telescope Board. A publication-date match, not a photo taken on your date. Independent of NASA.

Behind the image

Wild Duck Open Cluster M11

Original APOD · January 16, 1996

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 many bright stars in the cluster 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.

Image credit: Anglo-Australian Telescope Board

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