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单词 Iapetus
释义

Definition of Iapetus in English:

Iapetus

proper nounʌɪˈapɪtəsēˈap-
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).

    〔天文〕土卫八

Origin

Named after a Titan of Greek mythology, son of Uranus (Heaven) and Gaia (Earth).

Definition of Iapetus in US English:

Iapetus

proper nounēˈap-
Astronomy

  • A satellite of Saturn, the seventeenth closest to the planet, discovered by Cassini in 1671. It has one bright icy side and one very dark side and a diameter of 907 miles (1,460 km).

    〔天文〕土卫八

Origin

Named after a Titan of Greek mythology, son of Uranus (Heaven) and Gaia (Earth).
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更新时间：2025/11/4 19:28:21