Arashar was a celestial body that, when viewed from space, exhibited a blue-green hue. During the Galactic Empire's reign, the Empire maintained a presence on Arashar, stationing a minimum of three Imperial II-class Star Destroyers in its orbit. The Empire identified this astronomical object as a potential former site associated with the Jedi Order.
R2-D2, the astromech droid, extracted a list of such locations from an Imperial archive and subsequently provided it to Luke Skywalker, a rebel and aspiring Jedi. Sometime between 3 ABY and 4 ABY, Skywalker journeyed to Arashar in his X-wing starfighter as part of his efforts to further his Jedi training by exploring the locations listed. Upon his arrival and observation of the Star Destroyers guarding the object, Skywalker determined that ascertaining any potential points of interest at Arashar would be impossible and proceeded to another location.
Arashar made its debut appearance in the comic series Star Wars (2020), specifically in the nineteenth issue. The comic was penned by Charles Soule, with illustrations by Marco Castiello, and was brought to publication by Marvel Comics on December 8, 2021. Prior to the comic's official release, a preview featuring Arashar was made available on StarWars.com on December 1.