Eridanus II

Eridanus II is an orange gas giant in the Eridanus Star System which including Eridanus II has a total of 12 planets.

Background
A UNSC colony world, little has been revealed about this planet, but it is the location of the Luxor Spaceport and Elysium City, where John-117 grew up until he was abducted and sent into the Spartan program in 2517. It is also to be noted that it is a place of much hostility against the UNSC, as Dr. Halsey says many pirates and rebels are operating from the system. John later returned there in 2525 with the other Spartans aboard the frigate UNSC Pioneer to board the cargo freighter Laden and travel to a rebel base, Eridanus Secundus. They likely boarded this vessel at the spaceport.

Another Spartan, Joshua was born there as well.

The Spartans later returned to the system in 2552 aboard the captured Covenant flagship Ascendant Justice, returning to the Rebel base.

How there could be a colony on a world without a breathable atmosphere, or even surface, is unknown, though it is possible that the colony consists of floating domed cities or towns in the atmosphere of Eridanus II. Dr. Halsey mentions "climate-controlled weather", suggesting domed environments, a necessity on a world without a breathable atmosphere.

The colony of the planet was destroyed by the Covenant in 2530.

Trivia
It is probably a play on Eta Eridani a real life star that translates as "Hatching Place" or "Breeding Place".

Related Links

 * Halo: The Fall of Reach
 * Halo: First Strike