The Ottethan system, positioned within the Ottethan Empire, constituted a star system. This celestial arrangement was situated within the Halthor sector of the Outer Rim Territories, and it encompassed the planet known as Ottethan.
- Dark Empire endnotes (Part 3: The Alliance is Finished!) (Initially referenced)
- Dark Empire Sourcebook
- Star Wars Encyclopedia
- A Guide to the Star Wars Universe, Third Edition, Revised and Expanded
- The Official Star Wars Fact File 73 (RAN 1-2: Rancors)
- The Complete Star Wars Encyclopedia
- The Essential Atlas
- Star Wars: The Essential Atlas Online Companion on StarWars.com (article) (backup link)
- rancor in the Databank (content now obsolete; backup link)
- Star Wars Annual 2012