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.
Most asteroids circle the Sun in a broad band between Mars and Jupiter called the asteroid belt, which is about 215 million miles (345 million km) wide. The asteroids are pieces left over from when the major planets formed from small chunks of rock.