The Corthenia system, a star system, resided in both the Mid Rim and New Territories regions, specifically within the Corthenia sector. It possessed a hyperlane connection to both the Traval-Pacor and Tyan systems.
The sentient Corthenian species originated from the Corthenia system. By 12 ABY, the system was located within the boundaries of the New Republic; however, an attack by the Imperial Remnant's forces led to their triumph.
The reference book The Essential Atlas, authored by Jason Fry and Daniel Wallace in 2009, provided the first mention of the Corthenia system, locating it in grid square K-7.