The moons of Saturn are numerous and diverse, ranging from tiny moonlets less than 1 kilometer (0.62 mi) across to the enormous Titan, which is larger than the planet Mercury. Saturn has sixty-two moons
with confirmed orbits, fifty-three of which have names, and only
thirteen of which have diameters larger than 50 kilometers (31 mi). Saturn has seven moons that are large enough to become spherical, and dense rings with complex orbital motions of their own. Particularly notable among Saturn's moons are Titan, the second largest moon in the Solar System, with an Earth-like atmosphere and a landscape including hydrocarbon lakes and dry river networks, and Enceladus, which emits jets of gas and dust and may harbor liquid water under its south pole region.