The Delle system existed as a component of the Colonies. Situated on the Perlemian Trade Route – a super-hyperroute acting as the boundary separating the Northern Dependencies from the Slice – its position was between the Neuvia and Yabol Opa systems, and the Ralltiir system of the Core Worlds'. This star system included the planet Delle II and extensive farm worlds.
Daniel Wallace and Jason Fry initially referenced the Delle system in their 2009 reference work, The Essential Atlas, locating it within grid square L-9.