Asteroids and comets

Millions of small rocky bodies called asteroids are present in the solar system.
If asteroids were bright, we would see as many of them as stars in the night sky. A significant part of them circulate in a ring, between the orbit of Mars and that of Jupiter, between 2 and 4 AU, called the asteroid belt. It thus marks the limit between the telluric planets and the gas giants.
An asteroid is a celestial object that varies from a few tens of meters to several hundred kilometers in diameter and is part of our solar system. Objects less than 50 m in diameter are called meteorites.