Sixela system The Sixela System was a star system in the Outer Rim Territories , located in the Thuris sector . At least three planets orbited the blue giant Silexa . It was the sight of a major engagement in 1 ABY perpetuated by rogue Imperial Commander Rezi Soresh . The system was destroyed using prototype weapons , which triggered a supernova in the sun . The supernova failed to take out its intended targets , the Alliance Fleet and an Imperial Navy fleet led by Darth Vader . Soresh was killed after trying to blast the Rebel pilot Luke Skywalker after failing to turn Skywalker into his personal assassin . Description . The Silexa was a blue giant . At least three planets orbited the star . In 0 ABY , the system was destroyed when prototype weapons started a chain reaction in the star ' s core , triggering a supernova which turned the system into radiation and dust stretching across billions of kilometers . History . Galactic Empire Commander Rezi Soresh spent twenty - seven days fleeing the Empire after failed Darth Vader on Belazura . Soresh eventually stumbled across the Sixela system in his CloakShape fighter . He landed on a barren moon orbiting the third planet to reassess his options . Using his stored information to bribe and blackmail other officials , he slowly rebuilt his powerbase to trap the Rebel pilot Luke Skywalker , a key cause in his downfall . Eventually , Soresh had gathered enough supplies for his own compound and was able to trap a colony vessel full of 100 people to use as hostages . He took several of the Arkanians , as well as other beings , and drugged them to use as bodyguards . In the process of trapping Skywalker , Soresh also planned on taking his revenge on Darth Vader . Using his dubious resources , Soresh contacted the engineers at the hidden Maw Installation and took possession of a secret weapon . Meanwhile , Soresh planted secret intelligence with the Rebels , telling them Emperor Palpatine would be visiting the Imperial High Command in the system with a minimal guard . It would prove to be bait General Jan Dodonna could not resist . When Skywalker and his companions landed on Soresh ' s moon , Soresh had his impostor meet them . Solo gunned down the impostor while Skywalker strafed the compound . Luke Skywalker then landed , but a series of mines exploded , drawing Skywalker ' s attention to the hostages . Soresh , disguised as one of the colonists , captured Skywalker and his companions . Soresh tortured Skywalker , who pretended to become Soresh ' s servant to buy time for the Alliance Fleet to arrive . After two weeks , the Rebel fleet came out of hyperspace in the system . Vader ' s fleet arrived as well and engaged the Rebels . Skywalker escaped from Soresh during the commotion , and Soresh launched his secret weapon at the system ' s sun . He had acquired resonance torpedo es , which could turn a star into a supernova . Skywalker and Solo joined the battle waging in orbit . When the torpedoes hit the sun , they started a chain reaction in the core . The Rebel and Imperial fleets withdrew from the system , and Solo and Skywalker returned to the surface to evacuate the remaining hostages aboard their ship . The aged Jedi Ferus Olin dueled Darth Vader , who had landed on the surface . Olin was cut down , but his death bought time for the Rebels to escape . Soresh himself was killed when he tried to blast Skywalker , who was boarding the " Millennium Falcon ; " The Rebels brought Olin ' s body aboard and left the system as well . A few minutes later , the supernova vaporized everything in the system . Orbital bodies . The system contained at least three planets . The third planet had a single barren red moon . Behind the scenes . The Sixela system first appeared in Alex Wheeler ' s 2010 book " . " The only location specifically noted in the book was the barren moon which Rezi Soresh used as a base . Early in the book , Soresh ' s moon was said to be orbiting the third planet , but later it was said to orbit the sixth . A number of other errors exist . The battle in the system is the first chronological use of resonance torpedoes .