The son of Saturn and Rhea, brother of Jupiter and Neptune; the dark and gloomy god of the Lower World.
The ninth planet of the Solar System, the smallest (5700 km radius) and most distant from the sun. The suggestion has been made that it more closely resembles a large close comet than a planet. Its orbit has an eccentricity of 0.248, larger than that of any other planet; it varies from 4.44 to 7.37 billion km distance from the sun.
The smallest planet in our solar system. Pluto is neither a gas giant planet, nor a terrestrial planet, but rather is though to have been gravitationally captured by our Sun. Check out SEDS' Nine Planets, for more about planets. Or see StarDate's Solar System Guide.