Pluto

Pluto is a dwarf planet located in the Sol System, and was once considered the ninth planet from the sun. It was reclassified as a dwarf planet in the 21st century. It is believed to be a trans-Neptunian object that is now part of the massive Kuiper Belt. It is named for the Roman god of the Underworld, Pluto.

Pluto possesses one moon, Charon.

Pluto may or may not be colonized by the 27th century. It may have served as a system reconnaissance center for the Terran Confederation during the Terran-Kilrathi War.