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Open cluster
A loose grouping of stars.
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BSL Sign Languages
of open cluster
(BSL Version)
BSL Explanation
of open cluster
(BSL Version – Glossary of Astronomy)
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Glossary – Open cluster
- an open cluster is a type of star cluster made of tens to a few thousand stars that were formed from the same giant molecular cloud and have roughly the same age.
- more than 1,100 open clusters have been discovered.
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