Oseon Belt

The Oseon Belt was situated in the Oseon system of the Centrality region. It was a part of the regions known as the Outer Rim Territories and the Slice. Along with the rest of the Oseon system, the Oseon Belt was located in grid square T-8 of the Standard Galactic Grid and lay on a hyperspace route that linked it to the celestial bodies Junkfort Station and Marleyvane. Another route, known as the Sanity Skip, also connected the Oseon system to the Kessel system. The Oseon Belt contained a subtropical moon.

At some point by 10 BBY, the gambler Lando Calrissian won ownership of the Oseon Belt's subtropical moon. in a game of cards. That year, Calrissian mentioned his acquisition of the natural satellite during a game of sabacc with the thief Han Solo in the saloon known as the Lodge on the planet Vandor.

The Oseon Belt was first mentioned in the 2018 Star Wars Anthology Series film Solo: A Star Wars Story. The accompanying reference book Solo: A Star Wars Story The Official Guide by Pablo Hidalgo spelled its name as the "Oseon belt." The origins of the Oseon Belt lie in the Star Wars Legends continuity. Lando Calrissian and the Mindharp of Sharu, the June 12, 1983 first entry in The Lando Calrissian Adventures trilogy of novels by L. Neil Smith, saw the first appearance of the asteroid-filled Oseon system. That star system was then established to have contained multiple asteroid belts by the trilogy's September 12, 1983 second entry, Lando Calrissian and the Flamewind of Oseon. On that book's original cover, an illustration by William Schmidt also provided the first visual depiction of the system's asteroid Oseon 6845.

Beginning with the 1996 Star Wars: The Roleplaying Game, Second Edition, Revised and Expanded rulebook authored by Bill Smith for use with West End Games' Star Wars: The Roleplaying Game as well as Hidalgo's 1996 Second Edition of the 1989 The Roleplaying Game sourcebook Galaxy Guide 3: The Empire Strikes Back, Star Wars sources began referring to the Oseon system's group of asteroids as a more unitary object, introducing nomenclature such as the "Oseon asteroid belt," the "Oseon asteroid field," and the "Oseon belt." The Wizards of the Coast roleplaying game source article "A Campaign Guide to the Centrality," which was authored by Michael Kogge and published in the fifth issue of the Star Wars Gamer magazine on July 24, 2001, was the first work to attempt to reconcile the two perspectives by characterizing the overall object, which it referred to as the "Oseon Asteroid Belt," as indeed consisting of several smaller belts.