Learn what a resonator does, and why you may or may not need one for your car or truck. A resonator is an important part of your exhaust system. Learn what a resonator does, and why you may or may not need one for your car or truck. A resonator is an important part of your exhaust system.
The average distance between asteroids in the main belt is about 600,000 miles. Ceres, the largest and most massive, is 590 miles wide. It contains almost one-third of the total mass of all the asteroids.
Asteroid Belt. The asteroid belt is situated between the orbits of Mars and Jupiter around 280 million miles (450 million km) from the sun. There are millions of asteroids residing in this area ranging from 600 miles (950 km) in diameter, all the way down to particles of dust.steroid Belt Facts. 1  There are 200 objects in the asteroid belt larger than 60 miles (100 km) in diameter and almost 1 million objects over 1 km in diameter. 2  The average surface temperature of an asteroid is -73C (-100F).