Astronomy Answers: From the Astronomical Dictionary

Astronomy Answers
From the Astronomical Dictionary


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The description of the word you requested from the astronomical dictionary is given below.

Ariel

A moon of 1157 km diameter at about 190,900 km from the planet Uranus. The gravity at its surface is about 0.0275 times as strong as on Earth. The moon goes once around its planet in about 60.5 hours. The moon was discovered in 1851. Also called UI (Uranus one).