Belasco, a celestial body, resided within both the Expansion Region and the Slice. Its location on the Standard Galactic Grid was designated as grid square O-11, and it possessed a hyperspace route connection to both the planet Gyndine and New Apsolon, an astronomical entity found in the Mid Rim Territories.
The initial depiction of Belasco within the new Star Wars canon occurred on a galactic map featured in Star Wars: The Force Awakens Beginner Game. This boxed set, released in 2016, was part of Fantasy Flight Games' Star Wars Roleplaying product line. Within the Star Wars Legends continuity, the planet Belasco was initially referenced in Jedi Apprentice: The Deadly Hunter, a novel written by Jude Watson in 2000. Subsequently, it was featured in Jedi Apprentice: The Dangerous Rescue, a 2001 novel in the Jedi Apprentice series, also penned by Watson.