Vjun/Legends

Vjun is where Darth Vader built Bast Castle and established it as his private refuge. Acidic rain falls from the skies and no plant life can survive on its surface.

The planet later served as the headquarters of dark-side Executor Sedriss and the Emperor's elite forces of Dark Jedi. Kam Solusar served as a dark-side warrior before Luke Skywalker turned him to the light-side on Nespis VIII, six years after the Battle of Endor. Soon after, three Ysanna prisoners from Ossus were taken to Vjun to serve as raw material for creating new clone bodies of Emperor Palpatine. The Ysanna were frozen in carbonite to await the future construction of a clone laboratory within Bast Castle. However, Luke Skywalker and his Jedi trainees stormed the castle to defeat the Emperor's minions.

Vjun was also featured in the Lucasarts Star Wars game Star Wars: Jedi Knight: Jedi Academy.