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Cordelia ( ) is the innermost known moon of Uranus. It was discovered from the images taken by ''Voyager 2'' on January 20, 1986, and was given the temporary designation S/1986 U 7.〔 It was not detected again until the Hubble Space Telescope observed it in 1997.〔〔 Cordelia takes its name from the youngest daughter of Lear in William Shakespeare's ''King Lear.'' It is also designated Uranus VI.〔 Other than its orbit,〔 radius of 20 km〔 and geometric albedo of 0.08〔 virtually nothing is known about it. In the Voyager 2 images Cordelia appears as an elongated object with its major axis pointing towards Uranus. The ratio of axes of Cordelia's prolate spheroid is 0.7 ± 0.2.〔 Cordelia acts as the inner shepherd satellite for Uranus' Epsilon ring.〔 Cordelia's orbit is within Uranus' synchronous orbit radius, and is therefore slowly decaying due to tidal deceleration.〔 Cordelia is very close to a 5:3 orbital resonance with Rosalind.〔 == See also == * Moons of Uranus 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Cordelia (moon)」の詳細全文を読む スポンサード リンク
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