The Quelii system represented a stellar region, identified as a star system, situated within the confines of the Quelii sector.
Within Star Wars Galaxies: An Empire Divided, a specific character makes the assertion that Dathomir resides within the Quelii system. However, upon the launch of Star Wars Galaxies: Jump to Lightspeed, the designated system for Dathomir travel was renamed the Dathomir system. This discrepancy remained within the game's data. A potential explanation is that the game designers may have intended to use the term sector rather than system.