Enceladus

Enceladus, also known as Saturn II, is a moon of Saturn.

28th of August 1789

 * Enceladus was discovered by William Herschel.

Other Facts

 * Enceladus is about 505 km / 314 miles in diameter.
 * Enceladus's average surface temperature is -198.15°C.
 * Enceladus's atmosphere is made of:
 * ​Water vapor (91%)
 * Nitrogen (4%)
 * Carbon dioxide (3.2%)
 * Methane (1.7%)