|Diameter|| 1,160 km|
|Distance from primary|| 191,240 km|
|Nickname(s)||Uranus' Icy Cliff Moon|
Ariel is the fourth-largest of the 27 known moons of Uranus. Ariel orbits and rotates in the equatorial plane of Uranus, which is almost perpendicular to the orbit of Uranus, and so has an extreme seasonal cycle.