The Illodia system, a star system, existed within the Illodia sector of the Core Worlds, a region found in the galaxy. The planet Illodia was a component of this system.
- The initial mention occurred in Star Wars Handbook 1: X-Wing Rogue Squadron.
- The Essential Atlas
- An article on StarWars.com, Star Wars: The Essential Atlas Online Companion, also covered it (backup link).