“pericynthion”的英文意思_释义_用法

单词

pericynthion

释义

pericynthion Astr.|pɛrɪˈsɪnθɪən|
[f. peri- + Gr. κύνθιον, neut. of κύνθιος, adj. designating Mt. Kynthos on Delos, the birthplace of Artemis, goddess freq. associated with the moon.]
That point at which a spacecraft in lunar orbit is closest to the moon's centre: applied esp. if the spacecraft was not launched from the moon.
1959Spitz & Gaynor Dict. Astron. & Astronautics 295 Pericynthion, that point in the orbit of a moon rocket which is closest to the moon.1969Times 17 May 8/6 Then the descent engines of the L.M. will be fired..to propel it into an orbit in which it will swing around the moon in an elliptical orbit. At its nearest (pericynthion) it will be eight nautical miles from the surface.

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