Enceladus
Moon
Enceladus is the sixth-largest moon of Saturn and the 19th-largest in the Solar System. It is about 500 kilometers in diameter, about a tenth of that of Saturn's largest moon, Titan. It is mostly covered by fresh, clean ice, making it one of the... Wikipedia
Gravity: 0.113 m/s²
Discovered: 1789
Density: 1.61 g/cm³
Radius: 156.65 mi
Discoverer: William Herschel
Age: about a billion years old
Albedo: 1.375±0.008 (geometric at 550 nm) or 0.81±0.04 (Bond)