Pluto ruled the whole Earth.
Pluto is more than twice the diameter and a dozen times the mass of Ceres, the largest object in the asteroid belt
 Like Uranus, Pluto rotates on its "side" in its orbital plane, with an axial tilt of 120, and so its seasonal variation is extreme; at its solstices, one-fourth of its surface is in continuous daylight, whereas another fourth is in continuous darkness

