亚洲网紅露点

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planetary precession

noun

Astronomy.
  1. the small component of the precession of the equinoxes contributed by the motion of the ecliptic, the change in orientation of the plane of the earth's orbit being produced by the gravitational attraction of the planets.


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亚洲网紅露点 History and Origins

Origin of planetary precession1

First recorded in 1860鈥65

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planetary nebulaplanetesimal