The Hors star system is medium size solar system in the northern part of the Omega Nebula which is part of the Terminus Systems untouched by Citadel laws and regulations. As it is more than a week away from the next mass relay it is effectively on the outer edge of known space. The Hors star system first appears in Chapter 8 of Mass Effect: Batarian Tango. Its names stem from Slavic mythology.