Definitions for "Asteroid Belt"
Keywords:  mars, jupiter, orbit, solar, kilometers
A ring of asteroids containing perhaps thousands which measure several kilometers in diameter, and millions of which measure several meters in diameter or smaller. The asteroids travel in orbits between 2 and 3.5 A.U. from the Sun, locating them between the orbits of Mars and Jupiter.
A ring of asteroids containing perhaps thousands of big rocks several kilometers in diameter, and millions of smaller chunks. Asteroids orbit between 2 and 3.5 AU from the Sun, between the orbits of Mars and Jupiter.
A collection of asteroids in orbit about the Sun lying between Mars and Jupiter. It is believed that this belt formed as the result of a planet breaking apart or failing to coalesce at all.