Concept information
Preferred term
Near-Earth objects
Definition
- An asteroid, comet, or large meteoroid whose orbit brings it exceptionally close to the Earth, and which may therefore pose a collision danger. Most such objects are in orbits around the Sun with perihelion distance less than 1.3 astronomical units. (en)
Broader concept
Narrower concepts
- Amor group (en)
- Apollo group (en)
- Aten group (en)
- Atira group (en)
- Earth trojans (en)
Entry terms
- Near-Earth asteroids (en)
- Near-Earth comets (en)
- Near Earth objects (en)
- NECs (en)
- NEOs (en)
Editorial note
URI
http://astrothesaurus.org/uat/1092
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