1 Ceres

AKA:  Ceres
Class:   Dwarf Planet (orbiting Sol)
Discovered:  1801  by Giuseppe Piazzi
Named after:  The Roman goddess of growing plants, the harvest, and motherly love.

Facts:

The largest object (and only dwarf planet) in the asteroid belt.
May have an underground ocean of liquid water.

Details:

Rotation period:  9 hrs 4 mins