Pluto

Pluto, formal designation 134340 Pluto, is a celestial object in the Sol system, and the second-largest known dwarf planet (after Eris) as well as the tenth-largest body observed directly orbiting Sol.
==History==
Several military and scientific stations orbit Pluto.Halo Encyclopedia - Page 283
On November 3, 2552, the Democritus Monitoring Station detected Cortana's signal in Slipspace with Dr. Halsey's message to Lord Hood.Halo: Ghosts of Onyx - Page 212
==Physical Aspects==
===Locations===
====Orbital Locations====
*Remote Scanning Outpost Democritus
*Kelvin Research StationHalo: Evolutions: The Impossible Life and the Possible Death of Preston J. Cole - Page 458
==Appearances==
*Halo: Ghosts of Onyx 
*Halo: Evolutions - Essential Tales of the Halo Universe
**The Impossible Life and the Possible Death of Preston J. Cole
==Sources==
Category:Sol System
Category:Planets