NOAO / AURA / NSF / SCIENCE PHOTO LIBRARY NOAO / AURA / NSF / SCIENCE PHOTO LIBRARY
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M38 open star cluster (NGC 1912), optical image. Open star clusters are small groups of stars that mostly formed recently from the same cloud of gas and dust. These young bright, blue stars are only loosely bound by gravity, and they will eventually drift apart. M38, in the constellation Auriga, is about 200 million years old, 25 light years across and 4000 light years away. This is a composite of 12 images taken by the Burrell-Schmidt telescope, Kitt Peak, Arizona, USA.
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