Haruun Kal / Legends The planet Haruun Kal ( Above the Clouds in Basic , also known as Haruun Kul or Al ' Har I ) , located in the Dustig sector of the Mid Rim on the Gevarno Loop , was the homeworld of the famed Jedi Master Mace Windu . Its capital was Pelek Baw . Overview . The only world in the Al ' Har system , Haruun Kal appeared to be an oceanic world from space . However , this " ocean " was in fact a sea of toxic gases brought to the surface by volcanic activity , and broken by mountains and plateaus . Only the landmasses that reached into the atmosphere could support life , and thus it was high in these mountains and plateaus where native life evolved . Native Humans of the world , known as Korun nai ( Uplanders ) , were all Force - sensitive . There were many theories explaining this remarkable phenomenon . The most popular , held by the Jedi Council , indicated that during the Great Sith War a starship transporting Jedi Knights crashed on the planet , and that the marooned survivors were the ancestors of the Korunnai . This view was supported by the fact that the vibroshield s used by Kar Vastor and his Akk Guard s were made of ultrachrome , a metal that was used in shipbuilding during the Great Sith Wars . The planet had a rotation rate of 25 . 5 standard hours , and a year length of 383 local days . Its diameter was 10 , 120 kilometers , and had . 98 standard gravity . All electronics on the planet had to be rubbed down with portaak amber to prevent the planet ' s various metal - eating and silicate - eating fungi from destroying them ; even with the amber , electronics were somewhat vulnerable . History . Great Galactic War . During the Great Galactic War , an Imperial Black Ops squadron that included would - be Lieutenant Pierce were dispatched to initiate massacre on Haruun Kal . Waning days of the Republic . Haruun Kal was first colonized by sapients 700 generations prior to the Clone Wars . It was governed , in the years preceding the Clone Wars , by the Representative Council . During the reign of the Republic , war between the native Korun tribes and immigrants , whom the natives named Balawai , meaning " Downfolk " , divided the population of Haruun Kal . These Summertime War s lasted from 51 BBY until 22 BBY . Mace Windu brought an end to the conflicts when he returned to his homeworld during the Clone Wars , in which the Korunnai were allied with the Republic and the Balawai with the Confederacy of Independent Systems . However , in the process of bringing an end to both the long local conflict and breaking the Separatist hold on the planet , he watched his former Padawan , Depa Billaba , who had been on the planet supposedly leading missions for the Republic , fall to the dark side of the Force . The combatants of the Clone Wars consisted of more than clone troopers without families and battle droids without feeling . On many worlds , the war overlapped local conflicts , fanning flames of deep - rooted aggression even higher . The Confederacy and the Republic both exploited local wars to secure contentious worlds , and bolstered indigenous combatants with supplies and expertise . On Haruun Kal , the Clone Wars made a terrible civil war even worse . Imperial oppression and beyond . Shortly after the Galactic Empire was established , an Imperial Navy fleet bombarded Haruun Kal . By 40 ABY , it was unknown if any Korunnai had escaped extermination . However , as it turned out , at least three Korunnai still lived in 5 ABY — specifically Nick Rostu , Kar Vastor , and Lorz Geptun . At some point prior to 40 ABY , Haruun Kal ( presumably represented by Balawai ) joined the Galactic Federation of Free Alliances . Flora and Fauna . The fauna on Haruun Kal included many predators and scavengers . Many of the insects were parasitic . Notable fauna included akk dogs , ankkox s , branch leopard s , fever wasp s ( cause of Wasp Fever ) , tusker s , jacuna s , vine cat s , rot crow s , and grasser s . The flora of Haruun Kal was made up of lush trees and dangerous fungi . Certain fungi that blanketed the planet were corrosive to metal . If unprotected , vehicles , communication equipment , and other advanced technology would be destroyed within days . Other fungi rapidly decomposed dead tissue . Plant life came in every shade of green . Important plants included portaak , brassvine , glass - fern , jinsol , thyssel , and lammas .