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precession of the equinoxes

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precession of the equinoxes

One entry found.

Main Entry: precession of the equinoxes

Date: 1621

: a slow westward motion of the equinoxes along the ecliptic caused by the gravitational action of sun and moon upon the protuberant matter about the earth's equator

Learn more about "precession of the equinoxes"

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