Eridanus Star System
From Halopedia, the Halo wiki
Summary
Outer Colony system of the UNSC, containing two stars and three planets. Eridanus system is home to the planet Eridanus II as well as a number of asteroid belts. In these belts is thought to have been a group of rebels hiding out after a civil war with the UNSC. The Spartans visited this system several times.
