Oort cloud
type: Concept
contributor: AAS Frey.Katie
modified: 2020-11-17T19:04:05.986Z
modified: 2020-11-17T19:04:16.758Z
alternative label: Oort Cloud
alternative label: Öpik–Oort cloud
alternative label: Opik-Oort Cloud
broader: Solar system
broader: Long period comets
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.
narrower: Oort cloud objects

Oort cloud objects
type: Concept
broader: Oort cloud

Solar system
type: Concept
narrower: Oort cloud

Long period comets
type: Concept
narrower: Oort cloud