单词 | Iapetus |
释义 | Iapetus/ʌɪˈapɪtəs /Astronomy A satellite of Saturn, the seventeenth closest to the planet, having one bright icy side and one very dark side, discovered by Cassini in 1671 (diameter 1,440 km). OriginNamed after a Titan of Greek mythology, son of Uranus (Heaven) and Gaia (Earth). |
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