Umbara

Umbara
Planet Info
Name:	Umbara
Astrographical
Region:	Expansion Region
Sector:	Ghost Nebula
System:	Umbara System
Physical
Points of Interest:	Sith Academy (Umbara)
Societal
Native Species:	Banshees Umbarans Vixus
Primary Language:	Umbarese
Major Cities:	Umbara capital city
Affiliation:	Galactic Republic New Sith Empire Brotherhood of Darkness Confederacy of Independent Systems
[Source]

Umbara, known as the Shadow World, was a shadowy planet within the reaches of the Ghost Nebula. It was home to the Umbarans.