The Ileenium system, also known as the D'Qar system, was a star system located in the Outer Rim Territories. D'Qar, the planet which served as the base of the Resistance thirty years after the Battle of Endor, was located in this system.
- Star Wars: The Force Awakens: The Visual Dictionary
- Poe Dameron: Flight Log
- Ultimate Star Wars, New Edition
- Star Wars: The Rise of Skywalker: The Visual Dictionary