Shoon, a terrestrial world, resided within the Shoon system, which itself was part of the Senex sector. This sector fell within the Senex-Juvex region, located in the Western Reaches section of the Mid Rim. Found within the sector's region called the Tangles, Shoon possessed hyperlane connections to the Antiquity, Osmani, and Suliana systems.
Once upon a time, Shoon served as the homeworld for a colossal humanoid species. By 43 ABY, this species had vanished, leaving behind widespread ruins. Furthermore, an ancient and devastating war had scarred Shoon, resulting in numerous rings of molten rock and glassy stone across its landscape. Similar to other planets in the Senex-Juvex, Shoon was governed by the aristocratic Ancient Houses of that area.
The reference book The Essential Atlas, written by Daniel Wallace and Jason Fry in 2009, first introduced Shoon. It was located in grid square L-18.