Ryyk was a Neti colony. It was wrongly considered by some to be the original Neti homeworld, which was Myrkr. Some time prior to the Great Sith War, Ryyk was destroyed when its star went supernova. The remnants formed the Ryyk Nebula.
- The Essential Guide to Alien Species
- Power of the Jedi Sourcebook
- Tales of the Jedi Companion
- The Complete Star Wars Encyclopedia