Astronomy Answers: From the Astronomical Dictionary

Astronomy Answers
From the Astronomical Dictionary

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A moon of 471 km diameter at about 129,900 km from the planet Uranus. The gravity at its surface is about 0.0081 times as strong as on Earth. The moon goes once around its planet in about 33.9 hours. The moon was discovered in 1948. Also called UV (Uranus five).