Aargonar was a planetary body situated within the galaxy. During the period known as the Clone Wars, the Senator Mina Bonteri's husband, who was affiliated with the Confederacy of Independent Systems, journeyed to this planet to establish a Separatist base; however, he met his death when Republic clone troopers launched an attack. This planet also served as the original homeworld for the human Imperial stormtrooper designated TK-14057.
The initial reference to Aargonar occurred in the Rebellion Era Sourcebook. This Star Wars Legends supplementary material from 2001 for the Star Wars Roleplaying Game was authored by Bill Slavicsek, Steve Miller, and Owen K.C. Stephens. Its status as canon was established through its mention in "Heroes on Both Sides," specifically episode ten of third season of the animated series Star Wars: The Clone Wars, which was first broadcast on November 19, 2010.