There are nine moons that can be seen with strong telescopes. All twenty of the discovered moons have diameters that range from 12 miles to 3200 miles. Mimas, Enceladus, Tethys, Dione, and Rhea are the inner moons of Saturn and they are mostly comprised of water ice. Mimas has a large crater that surprised scientists because it did not shatter the moon. The crater is 80 miles wide and Mimas is only 240 miles in diameter.
Titan is the largest moon within the orbit of Saturn.
It is larger than even Mercury, and it is the only moon in the Solar System that has an atmosphere. Methane is the natural gas that we use on Earth. Space probes have detected that the surface temperature of Titan is 300 degrees below zero. Click here for a printable version of this page.