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Ariel

Moon
Ariel is the fourth-largest moon 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. It was discovered in October 1851 by William Lassell... Wikipedia
Dimensions: 1162.2 × 1155.8 × 1155.4 km
Surface area: 4211300 km2
Radius: 359.71 mi
Gravity: 0.246 m/s²
Discoverer: William Lassell
Discovered: 1851
Location: Uranus