Klymene is a moon that orbits the planet Tonus. Heavily cratered, its overall shape is neither spherical nor ellipsoid, but has a bulging waistline and squashed poles. An equatorial ridge is so high that it visibly distorts Klymene's shape to appear walnut-shaped. The leading hemisphere and sides are dark with a slight reddish-brown coloring, while most of the trailing hemisphere and poles are bright. It has no atmosphere and is not capable of supporting life.