Japrael sector

The Japrael sector was a sector of the Inner Rim region of the galaxy. It contained the Japrael system which was the location of the planet Onderon and its moon Iziz. During the Clone Wars, the Galactic Republic aided a resistance group on Onderon in overthrowing King Sanjay Rash, who served the Confederacy of Independant Systems.

Behind the scenes
The Japrael sector was first mentioned in the Star Wars Legends novel Darth Bane: Rule of Two, which was written by Drew Karpyshyn and published in 2007. The sector was confirmed to be canon in the reference book Ultimate Star Wars.