The asteroid belt is the circumstellar disc in the Solar System located roughly between the orbits of the planets Mars and Jupiter. It is occupied by numerous irregularly shaped bodies called asteroids or minor planets. The asteroid belt is also termed the main asteroid belt or main belt to …
By far the largest object within the belt is Ceres. The total mass of the asteroid belt is significantly less than Pluto's, and approximately twice that of Pluto's moon Charon.
Giuseppe Piazzi, discoverer of Ceres, the largest object in the asteroid belt. For several decades after its discovery, Ceres was known as a planet, after which it was reclassified as an asteroid. In 2006, it was designated as a dwarf planet.
951 Gaspra, the first asteroid imaged by a spacecraft, as viewed during Galileos 1991 flyby; colors are exaggerated
Fragment of the Allende meteorite, a carbonaceous chondrite that fell to Earth in Mexico in 1969