The Dalonia system, a star system, resided inside the Maerdocian sector. This sector was itself situated within the galactic territories referred to as both the Mid Rim and the Slice. Notably, it served as the place where the Dalonian crystals first came into existence.
For the 2009 reference book The Essential Atlas, the Dalonia system was first defined within the StarWars.com Online Companion, pinpointing its location as grid square Q-13.