Pluto

There is more information available on this subject at Pluto on the English Wikipedia.

Pluto
Astrographical
System:	Sol system
Orbiting:	Sol
Moon(s):	5
Physical
Diameter:	2,370 kilometres (1,470 mi)
Gravity:	0.067 G
Length of day:	6 days 9 hours 17 minutes
Length of year:	248.09 years
Atmosphere:	nitrogen methane
Surface temperature:	33 to 55 Kelvin
Societal
Demonym:	Plutonian
Government:	Unified Earth Government

Pluto, formal designation 134340 Pluto, is a dwarf planet in the Sol system, and the second-largest known dwarf planet (after Eris) as well as the tenth-largest body observed directly orbiting Sol. It was named after the Roman God of the Underworld. There are no facilities on the dwarf-planet's surface; however, several military and scientific stations orbit Pluto, including the Kelvin Research Station, UNSC Monitoring Station Delta Five, and the remote scanning outpost, Democritus. On November 3, 2552, Democritus detected Cortana's signal in slipspace with Dr. Halsey's message to Fleet Admiral Terrence Hood. In October of 2558, Pluto and its orbital installations came under the control of the Created, along with the rest of the UEG's colonies in the Sol system. This was thanks in part to the smart AI, Cleo, the overseer of UNSC Monitoring Station Delta Five.

Gallery

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  Pluto, along with Uranus, Neptune, and Neptune's moon, Triton.

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  An artist's depiction of the dwarf planet.

List of appearances

• Halo: Ghosts of Onyx (First appearance)
• Halo Evolutions
  • The Impossible Life and the Possible Death of Preston J. Cole
• Halo: Hunters in the Dark (Mentioned only)
• Halo 5: Guardians (Mentioned only)
• Halo Mythos