Astroid Belt

The modeled astroid belt contains 400 randomly positioned and sized astroids each with an orbit roughly 2.5x Earth's orbit. The real astroid belt contains billions, or possibly trillions of astroids ranging in size from tiny up to 950 kilometers in diameter. About half the mass of the belt is contained in the four largest asteroids, Ceres, Vesta, Pallas, and Hygiea.