Illum

"To Illum I must go."

- Yoda

Illum was an ice planet in the unknown regions where Jedi held many ceremonies and training.

Geographic Features
Rinderga is a mountainous planet completely frozen over with constant blizzards. It has many caves that contain saber crystals where Jedi often trained in the creation of their saber.

Clone Wars
During the Clone Wars, the Trade Federation attacked the Jedi temple during a training session between two Jedi. The temple collapsed but the Jedi were saved after the arrival of Jedi master Yoda

Galactic Dark Empire
The sith Lord Darth Argan chose Illum as the planet to hold his research facility within the ancient Jedi training grounds. With this facility he created a deadly pathogen that spread through the force which he planned to wipe out all the Jedi with. The Jedi Vrabou Kydior had infiltrated and compromised the facility after stealing the antidote.

Appearances

 * Star Wars: Jedi Knight: Jedi Extinction
 * Clone Wars: Chapter 6