Concept information
Preferred term
Oort cloud
Definition
- A huge theoretical cloud of comets surrounding the Sun between about 50,000 and 100,000 astronomical units and thought to be the reservoir of long-period comets entering the inner solar system. (en)
Broader concept
- Long period comets (en)
- Solar system (en)
Narrower concepts
- Oort cloud objects (en)
Entry terms
- Oort Cloud (en)
- Opik-Oort Cloud (en)
- Öpik–Oort cloud (en)
Editorial note
URI
http://astrothesaurus.org/uat/1157
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