Star Sector Atlas 12 is a supplement for Space Opera. This 46 page sourcebook on the Korellian Empire includes sections on the history, social institutions, government, civil service, ministries, religion, telepathy, physiology, armed forces, unit organizations, and starforces of the Empire, 2 starsector maps and lists of planets, details of 60 planets, animal encounters, and Korellian military ground and air equipment.