Catamitus is a moon that orbits the planet Cogrion. It is composed of approximately equal amounts of silicate rock and water. It has an iron-rich, liquid core. Its surface is composed of two main types of terrain. Dark regions, saturated with impact craters cover about a third of it. Lighter regions, crosscut by extensive grooves and ridges, cover the remainder. It has no atmosphere and is not capable of supporting life, but is the only moon in the system to have a magnetic field.