A retrograde satellite of Saturn, distance 12 947 920 km; also known as Saturn IX. It orbits Saturn in 548.0 days and has a mean diameter of 213 km. Phoebe’s surface is heavily cratered (the largest crater, Jason, is 101 km wide) and significantly darker than all but the smallest Saturnian moons, with an albedo of 0.08. Phoebe was discovered in 1898 by W. H. Pickering.