The star known as the Tython sun illuminated the Tython system situated within the Deep Core, specifically located in grid square L-10; it is a sun. The planet Tython, a world of great significance to the ancient Jedi, revolved around the Tython sun. Several moons also orbited Tython, with Ashla being one of them.
Adam Christopher's 2022 novel, Shadow of the Sith, marked the debut of the Tython sun in the current Star Wars canon. In the Star Wars Legends continuity, the star of the Tython system, referred to as Tythos, was initially referenced in The Holonet. This was a feature found on the official website for The Old Republic, a massively multiplayer online roleplaying game created by BioWare in 2011. The star Tythos made its initial visual representation in the eleventh edition of Star Wars: The Old Republic comics, released on October 12, 2011, with writing by Alexander Freed and illustrations by Dave Ross.