precession of the equinoxes

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Definitions of precession of the equinoxes words

noun precession of the equinoxes the earlier occurrence of the equinoxes in each successive sidereal year because of the slow retrograde motion of the equinoctial points along the ecliptic, caused by the precession of the earth's axis of rotation; a complete precession of the equinoxes requires about 25,800 years. 1
noun precession of the equinoxes the resulting drift of celestial coordinates with respect to the positions of celestial objects. 1
noun precession of the equinoxes the slightly earlier occurrence of the equinoxes each year due to the slow continuous westward shift of the equinoctial points along the ecliptic by 50 seconds of arc per year. It is caused by the precession of the earth's axis around the ecliptic pole, with a period of 25 800 years 0
noun precession of the equinoxes the occurrence of the equinoxes earlier in each successive sidereal year because of a slow wobble in the earth's axial spin which shifts the equinoctial points slightly westward along the ecliptic: the wobble is caused by the pull of the sun and moon on the earth's equatorial bulges and makes the poles move around a center point (axis of the ecliptic), taking about 25,800 years to return to the same orientation with the stars 0

before 1615

One of the 41% oldest English words

First recorded in 1615-25

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This term is known only to a narrow circle of people with rare knowledge. Only 7% of English native speakers know the meaning of this word.

According to our data most of word are more popular. This word is almost not used. It has a much more popular synonym.

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