asteroid belt

The Asteroid Belt is the region of the solar system between Mars and Jupiter where many asteroids orbit, which includes more than 90% of known minor planets. The term is also used in a more general sense for regions of the solar system with smaller populations of similar bodies, so the "traditional" asteroid belt may be called the main asteroid belt or main belt and an asteroid within it a main belt asteroid (MBA). Among the other asteroid populations (called asteroid families):

• Trojan asteroids (or just Trojans), orbiting in the Trojan Points, i.e., the Sun-Jupiter Lagrangian points, L4 and L5. Smaller populations are in the equivalent points for other planets, so they are sometimes distinguished as Jupiter Trojans versus, e.g., Neptune Trojans.
• near Earth asteroids (NEAs), i.e., rocky near-Earth objects (rocky NEOs, as opposed to NEOs that are comets).