Earth-crosser asteroid

From Free net encyclopedia

Image:Orbit Definitions.png An Earth-crosser asteroid is a Near-Earth asteroid whose orbit crosses that of Earth. The known numbered Earth-crossers are listed here. Buried in the list is one peculiar asteroid: 3753 Cruithne, whose orbit enjoys an unusual special relationship with Earth's. Those Earth-crossers whose semi-major axes are smaller than Earth's are Aten asteroids; the remaining ones are Apollo asteroids. See also the Amor asteroids.

The Earth-crosser asteroid group is a separate group from the Earth-crossing asteroid (ECA) group.

List

See also

Asteroid deflection strategies

The minor planetsedit
Vulcanoids | Near-Earth asteroids | Main belt | Jupiter Trojans | Centaurs | Damocloids | Comets | Trans-Neptunians (Kuiper belt · Scattered disc · Oort cloud)
For other objects and regions, see: asteroid groups and families, binary asteroids, asteroid moons and the Solar system
For a complete listing, see: List of asteroids. See also Pronunciation of asteroid names and Meanings of asteroid names.

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