Zirulast, a star classified as a white dwarf, existed within the Zirulast system. This system resided in the Belasco sector, found within the Slice region of the larger Expansion Region. Its location was along the Ootmian Pabol hyperlane, providing a route to both the Belasco system and the New Apsolon system located in the Mid Rim. A terrestrial planet sharing the same name orbited Zirulast, serving as the homeworld of the sentient Temolak species.
The Wizards of the Coast product Ultimate Alien Anthology, a sourcebook released in 2003 for the Star Wars Roleplaying Game, was the initial source of the star Zirulast. The 2009 publication The Essential Atlas specified the location of the Zirulast system, and consequently the star's position, as grid square P-11.