Near-Earth objects
type: Concept
narrower: Apollo group

Apollo group
type: Concept
contributor: AAS Frey.Katie
modified: 2020-10-26T18:43:26.311Z
modified: 2020-10-26T18:43:15.17Z
alternative label: Apollo asteroids
broader: Near-Earth objects
definition: A member of a class of near-Earth asteroids (NEAs) that have orbital semi-major axes greater than that of the Earth (> 1 astronomical unit) but perihelion distances less than the Earth's aphelion distance (less than 1.017 AU); thus, they cross the Earth's orbit when near the perihelia of their orbits. They are named for the prototype Apollo.