The Hardex system, a star system, existed inside the Jubilar sector. This sector was situated within the galactic area referred to as both the Outer Rim Territories and the Slice. The sentient Hardex species originated from this very system.
The reference book The Essential Atlas, authored by Jason Fry and Daniel Wallace in 2009, marked the initial appearance of the Hardex system. The book pinpointed its location within grid square T-7.