Pluto


Plutosearch for term

A Solar System object that orbits the Sun at an average distance of 39.5 A.U. Pluto is considered by some scientists to be the ninth planet from the Sun and by others to be a Kuiper Belt object. Pluto has a mass 0.002 times the mass of the Earth and a radius 0.18 times the radius of the Earth. It is a small body made of water ice, and temperatures there do not go above 50 K, or -223 degrees Celsius. Pluto has 1 moon called Charon.