Oort Cloud

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See also: Oort cloud

English[edit]

Alternative forms[edit]

Etymology[edit]

Named after Dutch astronomer Jan Hendrik Oort.

Pronunciation[edit]

  • IPA(key): /ˈɔːrt klaʊd/
  • Hyphenation: Oort Cloud

Proper noun[edit]

Oort Cloud

  1. (astronomy) The Solar System's Oort cloud, extending from 50,000 to 100,000 astronomical units (approximately 1 light year) from the sun; supposedly the source of most comets around the Solar System.

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