Ariel (moon)
Fourth-largest moon of Uranus
Ariel is the fourth-largest moon of Uranus. Ariel orbits and rotates in Uranus's equatorial plane, which is almost perpendicular to the planet's orbit, giving the moon an extreme seasonal cycle. It was discovered on 24 October 1851 by William Lassell and named for a character in two different pieces of literature.
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