英语词汇“perigee”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

perigee

/ˈpɛrɪdʒiː

noun Astronomy

The point in the orbit of the moon or a satellite at which it is nearest to the earth. The opposite of apogee.The most favourable conditions for a total eclipse are when the Moon is at its perigee, Earth is farthest from the Sun (around July) and when the Sun is observed near zenith....

Whereas the synodic period is 29.53 days, it takes 27.5 days for the moon to move in its elliptical orbit from perigee to perigee.
But the orbit is elliptical, and when the Moon is near perigee (closest to Earth), it moves along its orbit more swiftly than it does when it is near apogee (farthest from Earth).

Origin

Late 16th century: from French périgée, via modern Latin from Greek perigeion 'close round the earth', from peri- 'around' + gē 'earth'.

单词	perigee
释义	perigee /ˈpɛrɪdʒiː / noun Astronomy The point in the orbit of the moon or a satellite at which it is nearest to the earth. The opposite of apogee.The most favourable conditions for a total eclipse are when the Moon is at its perigee, Earth is farthest from the Sun (around July) and when the Sun is observed near zenith.... Whereas the synodic period is 29.53 days, it takes 27.5 days for the moon to move in its elliptical orbit from perigee to perigee. But the orbit is elliptical, and when the Moon is near perigee (closest to Earth), it moves along its orbit more swiftly than it does when it is near apogee (farthest from Earth). Origin Late 16th century: from French périgée, via modern Latin from Greek perigeion 'close round the earth', from peri- 'around' + gē 'earth'.
随便看	overtaker over-talk over-talkative over-talkativeness overtalker overtalking overtask overtax overtaxation over-tedious overteem overteeming overtell over-tender over-tenderness over the air over-the-board over the counter over the fence over the hill over the hump over the long haul over the moon over the odds over there