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Precession   Listen
noun
Precession  n.  The act of going before, or forward.
Lunisolar precession. (Astron.) See under Lunisolar.
Planetary precession, that part of the precession of the equinoxes which depends on the action of the planets alone.
Precession of the equinoxes (Astron.), the slow backward motion of the equinoctial points along the ecliptic, at the rate of 50.2" annually, caused by the action of the sun, moon, and planets, upon the protuberant matter about the earth's equator, in connection with its diurnal rotation; so called because either equinox, owing to its westerly motion, comes to the meridian sooner each day than the point it would have occupied without the motion of precession, and thus precedes that point continually with reference to the time of transit and motion.






Collaborative International Dictionary of English 0.48








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"Precession" Quotes from Famous Books



... what we have done or whom we have seen. We are out morning, noon, and night. Every day there is a regular "precession of the ...
— The Sunny Side of Diplomatic Life, 1875-1912 • Lillie DeHegermann-Lindencrone

... The velocity thus found was exactly equal to that which Herschel subsequently derived from a series of extremely delicate observations. The two parts of the ring, being at different distances from the planet, could not fail to be given different movements of precession by the action of the sun. Hence it would seem that the planes of both rings ought in general to be inclined toward each other, whereas they appear from observation always to coincide. It was necessary then ...
— Library Of The World's Best Literature, Ancient And Modern, Vol. 2 • Charles Dudley Warner

... have precession!" warned Mike. "Have to have a polishing surface. Quarter turn behind the cutter. ...
— Space Platform • Murray Leinster

... years ran into thousands, as they might sometimes do, this plan would be insufferably tedious. In that case we are driven back upon the astronomical method. In consequence of the movement which is commonly called the precession of the equinoxes, though it might more accurately be described as a kind of second rotation of the earth, the angle between the equator and the ecliptic steadily but very slowly varies. Thus, after long intervals of time we find the pole of the earth no longer pointing towards the same spot in the ...
— Clairvoyance • Charles Webster Leadbeater

... that as soon as these ancient astronomers perceived that the equinoxes preceded, they would at once attempt to determine the rate of precession in a given time; the precession, however, in one year was so small that they were obliged to extend their observations over immense periods. Jones informs us that the Hindoos first supposed that the precession took place at the rate of 60 years in a degree, or 1800 ...
— The God-Idea of the Ancients - or Sex in Religion • Eliza Burt Gamble



Words linked to "Precession" :   precedency, precedence, activity, motion, precession of the equinoxes, precede



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