The Sartinaynian system, also referred to as the Bastion system when it held the Imperial Capital, was a star system located within the Braxant sector in the Outer Rim region of the galaxy. Planets contained in this system were Sartinaynian and a gas giant with numerous moons and rings. The gas giant was inhabited by creatures similar to the beldons of Bespin.
- Specter of the Past (First appearance) (as Bastion system)
- Vision of the Future (First identified as Sartinaynian system)
- The New Jedi Order: Dark Tide II: Ruin (as Bastion system)
- The New Jedi Order: Destiny's Way
- The New Jedi Order: Force Heretic I: Remnant