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单词 equinoctial point
例句 equinoctial point
But this was not so in Virgil’s time, when—on account of the precession of the equinoxes—the equinoctial point had already entered Pisces, in which constellation it still remains. Astronomical Curiosities Facts and Fallacies 2012-03-27T02:00:18Z
You can trace out this great circle, from which astronomical longitudes are reckoned, by drawing an imaginary line from the equinoctial point just indicated through α in Andromeda and β in Cassiopeia to the pole-star. Astronomy with an Opera-glass A Popular Introduction to the Study of the Starry Heavens with the Simplest of Optical Instruments 2011-07-17T02:00:30.177Z
I thought the equinoctial points, were fixed points in the heavens, in which the equator cuts the ecliptic. Conversations on Natural Philosophy, in which the Elements of that Science are Familiarly Explained 2011-07-12T02:00:28.027Z
Precession is a retrograde or westerly motion of the equinoctial points, caused by the attraction of the Sun, Moon, and planets on the spheroidal figure of the Earth. The Astronomy of Milton's 'Paradise Lost'
It is inclined to the equinoctial at an angle of nearly 23° 28′, called the obliquity of the ecliptic, and cuts it in two points diametrically opposite to each other, called the equinoctial points. The Sailor's Word-Book An Alphabetical Digest of Nautical Terms, including Some More Especially Military and Scientific, but Useful to Seamen; as well as Archaisms of Early Voyagers, etc.
The Sun does not arrive at the same moment in each year at the equinoctial point on the equator. Morals and Dogma of the Ancient and Accepted Scottish Rite of Freemasonry
Owing to the precession of the equinoxes, however, the vernal equinoctial point, which was formerly in this constellation, has now advanced into the constellation Pisces, as we saw above. Astronomy with an Opera-glass A Popular Introduction to the Study of the Starry Heavens with the Simplest of Optical Instruments 2011-07-17T02:00:30.177Z
The points in which the ecliptic intersects the equator, are called the equinoctial points. Conversations on Natural Philosophy, in which the Elements of that Science are Familiarly Explained 2011-07-12T02:00:28.027Z
He came now to announce to us the completion of his Essay on the Pericyclical Motions of the Earth's Axis, and the precession of the equinoctial points. The Last Man
The two points of the ecliptic, which are each 90° distant from the equinoctial points, are called the solstitial points. The Sailor's Word-Book An Alphabetical Digest of Nautical Terms, including Some More Especially Military and Scientific, but Useful to Seamen; as well as Archaisms of Early Voyagers, etc.
As the sun, arriving at the equinoctial point of Spring, drawing nearer to us, increases the length of the days, that period seems most appropriate for those ceremonies. Morals and Dogma of the Ancient and Accepted Scottish Rite of Freemasonry
If the movement of the equinoctial points arising from these combined causes was uniform, the length of the tropical year would be manifestly invariable. Biographies of Distinguished Scientific Men
Mrs. B. Only twenty minutes; so that the variation of the equinoctial points is very inconsiderable. Conversations on Natural Philosophy, in which the Elements of that Science are Familiarly Explained 2011-07-12T02:00:28.027Z
Precession of the Equinoxes, name given to the gradual shifting of the equinoctial points along the ecliptic from east to west. The Nuttall Encyclopædia Being a Concise and Comprehensive Dictionary of General Knowledge
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 World's Greatest Books — Volume 09 — Lives and Letters
The observations of later generations have shown conclusively that the sun's shift of position is regularly progressive, hence that there is no "trepidation" of the stars and no revolution of the equinoctial points. A History of Science — Volume 2
The equinoctial point is the dividing line between light and darkness, winter and summer. The Light of Egypt; or, the science of the soul and the stars — Volume 2
They had correct ideas respecting the doctrine of the sphere, its poles, axis, equator, arctic and antarctic circles, equinoctial points, solstices, the distribution of climates, etc. History of the Conflict Between Religion and Science
Arzachel explained this supposed phenomenon by assuming that the equinoctial points, or the points of intersection of the equator and the ecliptic, revolve in circles of eight degrees' radius. A History of Science — Volume 2
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