Sol system

The Sol System, otherwise referred to by UNSC personnel as the Solar System, is the home star system for Humans. The system's G-class star is named Sol, hence the system's name, and the planets (and their moons) that orbit Sol are:

Major Planets and Moons

 * Mercury
 * Venus
 * Earth - The UNSC homeworld.
 * Luna
 * Mars
 * Jupiter - A gas giant, Jupiter is the largest major planet in the sol system.
 * Io - The site of a UNSC listening post. On October 20, 2552, the listening post on Io detects 15 Covenant ships inbound under the command of the Prophet of Regret.
 * Europa - It contains a UNSC base. Spartans Linda and Will were once assigned to a mission on this satellite.
 * Ganymede - The EVA Armor was developed here.
 * Saturn - A Gas Giant known for its clearly visible surrounding rings, unlike the other Gas Giants whose rings are rather dim. Saturn is the second largest planet in the Sol System.
 * Uranus - An Icy Gas Giant about twice as far away as Saturn from Sol.
 * Neptune - Furthest away from Sol, it is another Icy Gas Giant similar to Uranus.

Dwarf Planets

 * Ceres- The Largest Asteroid to have been discovered.
 * Eris- Currently the largest Dwarf Planet known. It is at almost 10% larger than Pluto in diameter.
 * Pluto - Pluto Slipstream Monitoring Station Democritus. On November 3, 2552, the Monitoring Station detects Cortana's signal in Slipspace with Dr Halsey's message to Lord Hood.

Links
Halo Maping Project