Dominus sector The Dominus sector was a sector located within the Outer Rim Territories , inside the region known as the Slice , in quadrants T - 7 , U - 7 and U - 8 . It contained at least seven systems . Description . The Dominus sector was located within the galactic region known as the Slice — the territory between the Perlemian Trade Route and the Corellian Trade Spine , described as the " cradle of galactic civilization " — in the Outer Rim Territories and inside quadrants T - 7 , U - 7 and U - 8 . It contained at least seven systems — Baros , Dominus , Dornea , Ruac , Solanus , Solay and Trailia as well as the worlds of arid Baros , Dornea and Trailia , a lush tropical planet . At least one hyperspace route , Prously ' s Rim Run , ran through the sector , linking Baros and Dornea to the neighboring Calamari sector . History . The tract of space containing the Dominus sector was explored sometime between the Great Hyperspace War of 5000 BBY and the Kanz Disorders of c . 3000 BBY . By 0 ABY , it was an established sector . At this time , Luke Skywalker , Princess Leia , and Wedge Antilles scouted out the sector looking for a good place to establish a base . They were attacked by an Imperial force and were forced to flee . During the early years of the reign of the Galactic Empire — a galaxy – spanning government meant to rectify the problems of its predecessor , the Galactic Republic — the Dominus system hosted the " Empirical " , a hidden space station serving as the hub for the Phase Zero dark trooper project . Captain Juno Eclipse , the pilot of the starship " Rogue Shadow " , was tortured aboard the station and declared a traitor of the Empire . In 9 ABY , Baros was attacked by Grand Admiral Thrawn ' s forces as part of the main effort of his campaign . During the Yuuzhan Vong War , local Yuuzhan Vong forces made probes into the Dominus sector . Dornean Navy forces under the command of General Etahn A ' baht successfully repelled the attacks . By 137 ABY , the Dominus sector was within the territory of Darth Krayt ' s Galactic Empire . Native species . Brubb . The Brubbs were a bipedal reptilian species from the world of Baros in the Baros system . Their ancestors had adapted to the arid planet plagued by sandstorms by developing a thick skin as well as transparent membranes over their eyes for protection . The howling winds also resulted in the near – complete loss of their hearing . Baros ' high gravity caused the Brubb to be stronger than what their average size of 1 . 5 – 1 . 7 meters suggested . Brubbs could also change their skin color , ranging from yellow to greenish – gray . Brubbs were a social species , living in communal groups known as haba s , most of which were extended families raising their children and operating a specialized business together . " University " habas incorporated the best and brightest individuals from other habas , possessing technology comparable to galactic standards , especially in the fields of solar and wind power . Imperial sentientologist and xenobiologist Obo Rin ' s project " Catalog of Intelligent Life in the Galaxy " stated that one of the university habas made contact with the Empire through the beaming of radio signals . Dornean . Originating from Dornea , the purple – skinned Dorneans were a proud species with a long martial history . Their naval traditions stretched back to the time when the Dorneans were limited to their homeworld ' s oceans , before their mastery of space travel . The Dorneans were skilled defensive tacticians , particularly male individuals , who held the roles of caring for children . During the reign of Emperor Palpatine , the Dorneans repulsed the Imperial Navy with a minimal fleet of their own . The Dorneans eventually joined the New Republic . Trailian . The Force - sensitive humanoid Trailians evolved on the planet Trailia and possessed a peaceful , low – technology society by the time of the New Republic , a government reformed from the Alliance of Free Planets previously existing as a rebel organization . Cronal , one of Emperor Palpatine ' s dark side servants , discovered the world after 5 ABY and established a laboratory inside Trailia ' s jungles , capturing native Trailians and transforming them through genetic engineering and dark side experimentation into a race of warriors he intended to sue against the Republic . He dispatched some of the warriors to raid other planets , which prompted the remaining Trailians to offer a reward for an investigation , thus attracting a group of offworlders to Trailia . A Force - sensitive member of the team detected the dark side signature of Cronal ' s laboratory and lead the group there . In an engagement , they defeated the mutated Trailians and other beasts guarding the fortress , but Cronal escaped the battle along with some warriors that continued razing offworld cities before being tracked down and eliminated by the same team .