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Ecliptic   Listen
noun
ecliptic  n.  
1.
(Astron.) A great circle of the celestial sphere, making an angle with the equinoctial of about 23° 28´. It is the apparent path of the sun, or the real path of the earth as seen from the sun.
2.
(Geog.) A great circle drawn on a terrestrial globe, making an angle of 23° 28´ with the equator; used for illustrating and solving astronomical problems.






Collaborative International Dictionary of English 0.48








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"Ecliptic" Quotes from Famous Books



... names in the Euphratean zodiac; the upper line the modern equivalents of the northern paranatellons; and the lower line those of the southern paranatellons. The zodiacal constellations have an interest peculiarly their own; placed in or about the plane of the ecliptic, their rising and setting with the sun was observed with relation to weather changes and the more general subject of chronology, the twelve subdivisions of the year being correlated with the twelve divisions of the ...
— Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 2 - "Constantine Pavlovich" to "Convention" • Various

... They determined the circumference of the earth by a method identical with that which would be employed by modern astronomers. They ascertained the position of the stars by right ascension and declination. They knew the obliquity of the ecliptic, and determined the place of the sun's apogee as well as its mean motion. Their calculations on the eccentricity of the moon prove that they had a rectilinear trigonometry and tables of chords. They had an approximate knowledge of parallax. ...
— The Old Roman World • John Lord

... is in such a part of the ecliptic as to appear turned much over upon her back, wet weather ...
— The Proverbs of Scotland • Alexander Hislop

... recognised, and everything was ruled out and set in place again. A wonderful man! I think it would be true to say it was Linnaeus who set the world on its present twist of thinking, and levered our mental globe a little more perpendicular to the ecliptic. He actually gathered the dandelion and took it to bits like a scientific child; he touched nature with his fingers instead of sitting looking out of window—perhaps the first man who had ever done so for seventeen hundred years or so, since superstition blighted ...
— Field and Hedgerow • Richard Jefferies

... advancing in that direction only, in order to reach every place, traversing dry countries or extensive seas, it ought then to render the sky serene or stormy. If the influence of the moon on the weather is denied, it is only that it may be referred to its phases, but its position in the ecliptic is regarded as affording probabilities ...
— Lamarck, the Founder of Evolution - His Life and Work • Alpheus Spring Packard

... the same time will see the sun at A. For it being immovable, as I suppose with Copernicus, and the light moving always in straight lines, it must always appear where it is. But one has always observed, we are told, that the eclipsed Moon appears at the point of the Ecliptic opposite to the Sun; and yet here it would appear in arrear of that point by an amount equal to the angle GEC, the supplement of AEC. This, however, is contrary to experience, since the angle GEC would be very sensible, and about 33 degrees. Now according to our computation, which ...
— Treatise on Light • Christiaan Huygens

... shall learn will but deepen it further. We can explain the solstice. We are aware with absolute certitude that the solstice and the equinox and the varying phenomena of the seasons are due to the fact that the plane of the equator is tilted at a slight angle to the plane of the ecliptic. When we put on the first overcoat in autumn, and when we give orders to let the furnace out in spring, we know that we are arranging our lives in accordance with that angle. And we are quite duly proud of our knowledge. And much good does ...
— The Feast of St. Friend • Arnold Bennett

... kind, which is best illustrated in the astrolabe, an instrument which consisted "of circular rims, movable one within the other, or about poles, and contained circles which were to be brought into the position of the ecliptic, and of a plane passing through the sun and the poles of the ecliptic"—an instrument, therefore, which represented, as by a model, the relative positions of certain imaginary lines and planes in the heavens; which was adjusted ...
— Essays on Education and Kindred Subjects - Everyman's Library • Herbert Spencer

... long since discovered that the path of the moon is inclined to the sun's path, or the ecliptic, about 5 deg. (5 deg. ...
— Harper's New Monthly Magazine, Vol. 3, July, 1851 • Various

... orbits, are placed in conjunction in spite of the height which separates them (as Ptolemy learnedly explains it), and afterwards return to the dimensions which are called ascending or descending points of the ecliptic conjunctions: or, as the Greeks call them, defective conjunctions. And if these great lights find themselves in the neighbourhood of these points or knots, the ...
— The Roman History of Ammianus Marcellinus • Ammianus Marcellinus

... many individuals, however, deposited their Dollars in a stronghold called a bank. These banks invested the Dollars in loans and commercial enterprises, with the result that, every time the earth traversed the solar ecliptic, the banks compelled each borrower to repay, or to acknowledge as due, the original loan, plus six one-hundredths of that loan. And to the depositor, the banks paid three one-hundredths of the deposited Dollars for the use of ...
— John Jones's Dollar • Harry Stephen Keeler

... universe by the action of heat and cold on matter. It is also evident that the principles of biology and the theory of evolution are hinted at by this philosopher. Also, he was the first to observe the obliquity of the ecliptic; he taught that the moon received its light from the sun and ...
— History of Human Society • Frank W. Blackmar

... useless. The study of astrology was intermixed with that of astronomy, of which Babylonia may be considered to be the birthplace. The heavens had been mapped out and the stars named; the sun's course along the ecliptic had been divided into the twelve zodiacal signs, and a fairly accurate calendar had been constructed. Hundreds of observations had been made of the eclipses of the sun and moon, and the laws regulating ...
— Babylonians and Assyrians, Life and Customs • Rev. A. H. Sayce

... the poles—not only on this earth but in the solar, alcyonic, and manasic globes. The equatorial belt, where phenomena are richest in the manasic globes, we call the Milky Way; in the solar globe we call it the plane of the ecliptic; and on the earth, the tropics. Modern science has not yet found it in Alcyonic globe—because it has never thought ...
— Ancient and Modern Physics • Thomas E. Willson

... 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. He also invented trigonometry. His star catalogue was due to the appearance of a new star which caused him to search for possible previous similar phenomena, and also to prepare for ...
— Kepler • Walter W. Bryant

... and its successive stages marked by those twelve constellations which are still called the Signs of the Zodiac. In time even these observations were excelled, and it now appears certain that the Chaldaeans recognized the annual displacement of the equinoctial point upon the ecliptic, a discovery that is generally attributed to the Greek astronomers. But, like Hipparchus, they made faults of calculation in consequence of ...
— A History of Art in Chaldaea & Assyria, v. 1 • Georges Perrot

... Indeed, the direction I had hitherto taken, had filled me with uneasiness; for it was evident that, had I continued it much longer, there would have been no possibility of my arriving at the moon at all, whose orbit is inclined to the ecliptic at only the small angle ...
— The Works of Edgar Allan Poe - Volume 1 (of 5) of the Raven Edition • Edgar Allan Poe



Words linked to "Ecliptic" :   great circle



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