The Claer system existed within the Sern sector, which itself was situated within the Southern Core region of the Colonies. This star system held the celestial body known as Clær, the location of a prestigious preparatory academy sometime in the period spanning from 5 BBY to 0 BBY.
The initial reference to the Claer system can be found in The Essential Atlas, a 2009 reference work authored by Jason Fry and Daniel Wallace; it specified the system's location as grid square L-13.