Ceres

Ceres is the biggest asteroid in the Solar System, orbiting at an average distance of 413 million km from the Sun. Ceres was discovered on New Years Day in 1801 by Giuseppe Piazzi, a monk and astronomer in Sicily, and the founding director of the Palermo Astronomical Observatory. Ceres was discovered using the Titius-Bode Law that predicts the position of planets based on a mathematical equation of their distance from the Sun. This law predicted the position of Uranus and led to the false belief that Ceres was a planet. Today, Ceres falls into the new classification of dwarf planet.

Quick Facts
Distance from Sun: 257 million miles/413.7 million km/2.77 AU

Diameter: 600 miles/950 km

Atmosphere: Unknown

Moons: 0

Rings: No