Dwarf Planet Guide and Information - Ceres

Name
Ceres
Distance from Sun (average)
413 million km
Diameter
950 km
Length of day
9 hours
Length of year
4 years 7 months

Ceres orbits the Sun between Mars and Jupiter, taking around 4½ years to do so. Its greater proximity to Earth means it was discovered much earlier than Pluto, in 1801. It is considerably smaller than any of the other main objects orbiting the Sun, but is reasonably large compared to many Kupier Belt objects, thus deserving the same rank as them of dwarf planet.