Dorin / Legends Dorin was a dark and dusty planet in the Expansion Region . It was the homeworld of the Kel Dors , with an atmosphere of a unique gas and helium . Description . The planet was situated between two black holes , making access to the planet limited , while space travel for the natives was highly dangerous . Dorin ' s atmosphere contained very little oxygen , and barely supported life , although some flora did exist on the planet . This atmosphere mix affected the evolution of the Kel Dor , requiring them to wear antiox breath mask s to filter out oxygen while off - world . Likewise , many non - Kel Dors visiting Dorin would have to wear breath masks of their own for the gases they required . Humans , however , could survive at least a short time in the atmosphere without suffering any ill effects . Kel Dor society and industry largely revolved around technology . Although most Kel Dor were regarded as highly altruistic to the welfare of other beings , their justice system was strict and swift to potential criminals and lawbreakers . Dorin ' s weather was very powerful and relatively unpredictable . Buildings on the surface were prepared to withstand violent storms , and in times of severe weather , most places and homes were made open for any Kel Dor to take shelter in . The Baran Do used their gifts in the Force to predict weather phenomena , supplemented by satellites and other technology in the modern day . Jedi Master Plo Koon , his uncle , and his niece , Sha Koon , were all from Dorin . History . The planet was home of the Baran Do , a Force cult predating the Jedi . Dorin joined the Galactic Republic in 5975 BBY , and had direct representation in the Galactic Senate . Because so many Jedi came from Dorin , the Republic funded the construction of an enclave on the planet . The atmosphere limited the regular students to Kel Dor , although many Jedi of other species visited the enclave to learn from the Kel Dor masters . While its isolation allowed the planet to remain unharmed by the Old Sith Wars , nearly all Jedi at the enclave on Dorin were killed by Sith assassin s following the Jedi Civil War . During the New Sith Wars , the planet was the site of a battle won by the Sith . During the Clone Wars , General Grievous led an attack on Dorin , but the Galactic Republic defeated his forces . Dorin fell within space controlled by the Galactic Empire during the Hunt for Zsinj of 7 – 8 ABY and was within the core territory of Grand Admiral Thrawn ' s confederation during his campaign against the New Republic in 9 ABY . Dorin was outside of Imperial space by the following year , during which it was attacked by Imperial forces as part of an offensive by the reborn Emperor Palpatine ' s alliance of Imperial factions . Dorin later joined the New Republic , and the Baran Do engaged in contact and exchange with the New Jedi Order . During the Yuuzhan Vong War , the planet fell into the hands of the invaders . After 35 ABY , the territory of the Imperial Remnant expanded , and Dorin was within the borders of the Remnant during the Second Galactic Civil War of 40 – 41 ABY . In 43 . 5 ABY , Luke and Ben Skywalker traveled to Dorin to consult the Baran Do and their involvement in Jacen Solo ' s fall to the dark side . Early in the reign of the Darth Krayt ' s Galactic Empire , Dorin was blockaded by the Imperial Navy . The Sith then ordered that the best and brightest of Kel Dor offer their service to the Empire , or their people would suffer . As a result many Kel Dor entered the Imperial service , though the blockade remained in place . A secret route onto the world , called the Dorin Run , was discovered by smugglers , though it lay so close to the black holes , that all but the most reckless considered it too dangerous to use .