At a few steps from the Mairie the precession met M. Chegaray.

But he did even more than this: he discovered that apparent motion of the fixed stars round the axis of the ecliptic, which is called the Precession of the Equinoxes,one of the greatest discoveries in astronomy.

He maintained that the precession was not greater than fifty-nine seconds, and not less than thirty-six seconds.

I attempted to extract something from Vince's Astronomy on the physical explanation of Precession: but in despair of understanding it, and having made out an explanation for myself by the motion round three axes, I put together a little treatise (Sept. 10, 1820) which with some corrections and additions was afterwards printed in my Mathematical Tracts.

on Precession, Solar Inequality, and Nutation, was made complete.

The subjects of my Tracts were, Lunar Theory (begun Oct. 26th, finished Nov. 1st), Figure of the Earth (1st part finished Nov. 18th), Precession and Nutation (my old MS.

I believe that, in addition to the effects ascribable to Newtonian gravitation (as general motion of the earth, precession of the equinoxes, and tides), this magnetic disturbance is the only one yet established as depending on an external body.

This subject is recognized in the existing course of the University: but, so far as I can infer from examination-papers, it appears to be very lightly passed over. (5) The Figure of the Earth, and its consequences, Precession, &c. I believe that the proposal is sanctioned, of adopting some part of this theory in the ordinary course; but perhaps hardly so far as is desirable.

Mathematical Tracts on Physical Astronomy, the Figure of the Earth, Precession and Nutation, and The Calculus of Variations.

Precedence N. precedence; coming before &c v.; the lead, le pas; superiority &c 33; importance &c 642; antecedence, antecedency^; anteriority &c (front) 234; precursor &c 64; priority &c 116; precession &c 280; anteposition^; epacme^; preference.

before; in advance &c (precession) 280. Phr. seniores priores [Lat.]; prior tempore prior jure [Lat.].

Priority N. priority, antecedence, anteriority, precedence, pre-existence; precession &c 280; precursor &c 64; the past &c 122; premises.

Precession N. precession, leading, heading; precedence &c 62; priority &c 116; the lead, le pas; van &c (front) 234; precursor &c 64.

Precession N. precession, leading, heading; precedence &c 62; priority &c 116; the lead, le pas; van &c (front) 234; precursor &c 64.

Any doubts about the real purpose of the parade vanished when people read that the precession was to march from the City Park to Third street and Tower avenue and return.

The etheric sun-globe revolves on its axis once in about 21,000 years, and this revolution causes the precession of the equinoxes.

He also applied the law of gravitation to explain irregularities in the lunar motions, the precession of the equinoctial points, and the orbits of comets.

the first of the signs of the Zodiac, which the sun enters on March 21, though the constellation itself, owing to the precession of the equinoxes, is no longer within the limits of the sign.

PRECESSION OF THE EQUINOXES, name given to the gradual shifting of the equinoctial points along the ecliptic from east to west.

He made improved determinations of some of the elements of the motions of the sun and moon, and discovered the Precession of the Equinoxes, from the Alexandrian observations which showed that each year as the sun came to cross the equator at the vernal equinox it did so at a point about fifty seconds of arc earlier on the ecliptic, thus producing in 150 years an unmistakable change of a couple of degrees, or four times the sun's diameter.

His discussion of precession, which he rightly attributes to a slow motion of the earth's axis, is marred by the idea that the precession is variable.

His discussion of precession, which he rightly attributes to a slow motion of the earth's axis, is marred by the idea that the precession is variable.

The first volume, devoted to the new star of 1572, was not ready, because the reduction of the observations involved so much research to correct the star places for refraction, precession, etc.; it was not completed in fact until Tycho's death, but the second volume, dealing with the comet of 1577, was printed at Uraniborg and some copies were issued in 1588.

He obtained an improved value of the constant of precession, and did good service by rejecting the idea that it was variable, an idea which, under the name of trepidation, had for many centuries been accepted.

Precession: Owing to the slow motion of the earth's pole around the pole of the ecliptic, the equator cuts the ecliptic a little earlier every year, so that the equinox each year slightly precedes, with reference to the stars, that of the previous year.