Usually means: Group of stars, gravitationally bound.
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We found 11 dictionaries that define the word open cluster:

General (7 matching dictionaries)
  1. open cluster: Merriam-Webster
  2. open cluster: Oxford Learner's Dictionaries
  3. open cluster: Wiktionary
  4. open cluster: Infoplease Dictionary
  5. open cluster: Dictionary.com
  6. Open cluster: Wikipedia, the Free Encyclopedia
  7. open cluster: TheFreeDictionary.com

Computing (1 matching dictionary)
  1. open cluster: Encyclopedia

Science (3 matching dictionaries)
  1. Open Cluster: Eric Weisstein's World of Astronomy
  2. Open Cluster: Extragalactic Astronomy
  3. OPEN CLUSTER: Zoom Astronomy Glossary

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Definitions from Wiktionary (open cluster)

▸ noun:  (astronomy) a more or less irregular star cluster containing tens to thousands of stars

Similar:
cluster, clustercore, field star, stardrift, cluster variable, star system, ring, shell star, starburst, constellation, more...

Phrases:
open star cluster, more...

▸ Words similar to open cluster

▸ Usage examples for open cluster

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▸ Words that often appear near open cluster

▸ Rhymes of open cluster

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Similar:
cluster, clustercore, field star, stardrift, cluster variable, star system, ring, shell star, starburst, constellation, more...

Phrases:
open star cluster, more...



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