Definitions
Oort cloud Tweet Definition of Oort cloud Like Definition of Oort cloud on Facebook
noun 
  1. (astronomy) A roughly spherical region of space from 50,000 to 100,000 astronomical units (approximately 1 light year) from the sun; supposedly the source of most comets.
Translations: 
  • Dutch: Oortwolk
  • German: Oortsche Wolke
    (trans-mid)
    (trans-bottom)
Etymology: Named after w:Jan Oort, Jan Oort.


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