The Apollo asteroids are a group of near-Earth asteroids named after 1862 Apollo, the first asteroid of this group to be discovered. They are Earth-crosser asteroids that have orbital semi-major axes greater than that of the Earth. Some can get very close to the Earth, making them a potential threat to our planet (the closer their semi-major axis is to Earth's, the less eccentricity is needed for the orbits to cross).

The largest known Apollo asteroid is 1866 Sisyphus, with a diameter of about 10 km, approximately the size of the object which created the Chicxulub crater whose impact is presumed to have led to the extinction of the dinosaurs.

Well-known Apollo asteroids include:

See also

• Apollo_asteroids
• Apollo asteroid records

External links

• List of Apollo minor planets

Apollo asteroids

Asteroide Apol·lo | Apollonova skupina | Apollo-asteroide | Apollo-tüüpi asteroidid | Asteroides Apolo | Astéroïde Apollo | Asteroide Apollo | Grupa Apollo | Asteróide Apollo | Skupina Apollo