| 单词 | ecliptic |
| 例句 | The planet has a few degrees of tilt to the plane of the ecliptic, not enough to make an appreciable seasonal difference in low latitudes. The Left Hand of Darkness 1969-03-01T00:00:00Z Conjunctions occur frequently in our solar system because "the planets orbit around the Sun in approximately the same plane - the ecliptic plane - and thus trace similar paths across our sky", according to Nasa. Venus and Jupiter to create spectacle in the sky 2023-02-28T05:00:00Z Because we’re in that plane, we see it edge on as a line across the sky called the ecliptic. On December 7 the Moon Will Photobomb Mars 2022-11-30T05:00:00Z That trajectory eventually took Voyager 1 “north” and out of the ecliptic—the plane of the solar system. Readers Respond to the July 2022 Issue 2022-11-12T05:00:00Z Babylonian astronomers had previously measured the positions of some stars around the zodiac, the constellations that lie along the ecliptic—the Sun’s annual path against the fixed stars, as seen from Earth. First Known Map of Night Sky Found Hidden in Medieval Parchment 2022-10-20T04:00:00Z Is the ecliptic the same thing as the celestial equator? Astronomy 2016-10-13T00:00:00Z Space physicists later worked out that models had largely ignored interstellar magnetic fields, which compress the heliosphere below the ecliptic, Provornikova says. ‘Voyager on steroids.’ Mission would probe mysterious region beyond our Solar System 2022-07-27T04:00:00Z The planets all stick pretty close to the ecliptic. On December 7 the Moon Will Photobomb Mars 2022-11-30T05:00:00Z That path sent Voyager 2 “south” of the ecliptic. Readers Respond to the July 2022 Issue 2022-11-12T05:00:00Z And whereas Ptolemy based his coordinate system on the ecliptic, Hipparchus used the celestial equator, a system more common in modern star maps. First Known Map of Night Sky Found Hidden in Medieval Parchment 2022-10-20T04:00:00Z Because of its motion on the ecliptic, the Sun rises about 4 minutes later each day with respect to the stars. Astronomy 2016-10-13T00:00:00Z When his team proposed the mission in 2014, it envisioned a third probe that would launch on a path perpendicular to the ecliptic plane, using nuclear propulsion to escape the heliosphere. ‘Voyager on steroids.’ Mission would probe mysterious region beyond our Solar System 2022-07-27T04:00:00Z As the moon orbits Earth every 29 days, it makes a big circle around the sky, crossing the ecliptic twice. On December 7 the Moon Will Photobomb Mars 2022-11-30T05:00:00Z Targets in intermediate ecliptic latitudes fall between those extremes. Meet the Woman Who Makes the James Webb Space Telescope Work 2022-07-11T04:00:00Z In modern terms, all the moving astronomical bodies have orbits close to the plane of Earth’s motion around the sun—the so-called ecliptic—meaning that they all follow much the same path through the stars. An Ancient Greek Astronomical Calculation Machine Reveals New Secrets 2021-12-14T05:00:00Z The ecliptic does not lie along the celestial equator but is inclined to it at an angle of about 23.5°. Astronomy 2016-10-13T00:00:00Z While Venus, Saturn and Jupiter fill out this fun formation — which illustrates that planets trace Earth’s ecliptic — the young, waxing moon visits Venus on Dec. 6 and then sashays toward Saturn on Dec. 7. Sky Watch: See Venus, Saturn and Jupiter fall into line 2021-11-26T05:00:00Z Sometimes, however, a planet will happen to be at the exact spot in the sky where the moon’s orbit crosses the ecliptic. On December 7 the Moon Will Photobomb Mars 2022-11-30T05:00:00Z Black flat sphere five degrees off the ecliptic else each month we’d see totality, normal as a door, common as a starling. Poem: We Need the Sky 2020-12-23T05:00:00Z Predicting the positions of the planets along the ecliptic was very difficult for early astronomers. An Ancient Greek Astronomical Calculation Machine Reveals New Secrets 2021-12-14T05:00:00Z The inclination of the ecliptic is the reason the Sun moves north and south in the sky as the seasons change. Astronomy 2016-10-13T00:00:00Z For now, the spacecraft remains in the ecliptic, even as flybys of Earth and Venus allow it to spiral inward. Closest Pictures Ever Taken of Sun Show Tiny Campfire Flares 2020-07-16T04:00:00Z The modern definition of the new moon occurs “when the Moon and Sun are at the same geocentric ecliptic longitude,” explains NASA’s Scientific Visualization Studio on its website. What is a new moon? 2020-02-21T05:00:00Z This is precisely because the K2 data is in the ecliptic plane – it is looking at the only parts of the sky where reciprocal transits are geometrically possible. The Reciprocal Transit 2019-08-03T04:00:00Z The mechanism displayed positions, for instance, on a “zodiac dial” on the front of the mechanism, where the ecliptic was divided into a dozen 30-degree sections representing the constellations of the zodiac. An Ancient Greek Astronomical Calculation Machine Reveals New Secrets 2021-12-14T05:00:00Z Because of precession, the constellations of the zodiac slide westward along the ecliptic, going once around the sky in about 26,000 years. Astronomy 2016-10-13T00:00:00Z The white curve made a delicate, graceful arc toward the plane of the ecliptic — and the orbits of the planets. A strange interstellar object is coming to Earth in this excerpt from The Last Astronaut 2019-07-07T04:00:00Z Strangely, the moon does not orbit Earth in the same plane in which Earth orbits the sun, which is called the ecliptic plane. When Earth and the Moon Were One 2019-07-02T04:00:00Z That’s because on that day, the moon will cross the ecliptic, the line that marks the sun’s path around the sky. What to Expect for Friday's Record-Breaking Lunar Eclipse 2018-07-26T04:00:00Z The observing swathes will overlap at the south and north ecliptic poles, which are points perpendicular to the plane of Earth’s orbit. NASA's Next Exoplanet Hunter Will Seek Worlds Close to Home 2018-04-06T04:00:00Z After a year, when Earth has completed one trip around the Sun, the Sun will appear to have completed one circuit of the sky along the ecliptic. Astronomy 2016-10-13T00:00:00Z Of key interest are the stars around the ecliptic poles, which will be included in each slice of the sky covered by TESS. Meet TESS, NASA's Next Step in the Quest for Alien Earths 2018-03-01T05:00:00Z Instead the moon’s orbit is inclined to the ecliptic plane by about five degrees. When Earth and the Moon Were One 2019-07-02T04:00:00Z If the moon crosses the ecliptic when full, we’ll get an eclipse of the moon; if the moon crosses the ecliptic when new, we’ll get an eclipse of the sun. What to Expect for Friday's Record-Breaking Lunar Eclipse 2018-07-26T04:00:00Z It flew in south of the ecliptic, shedding cold mass in irregular bursts like a black comet—a deceleration maneuver that took three years. Aliens watch the rise of humanity in an excerpt from Peter F. Hamilton’s sci-fi novel, Salvation 2018-02-07T05:00:00Z The circle in the sky that the Sun appears to make around us in the course of a year is called the ecliptic. Astronomy 2016-10-13T00:00:00Z These are the stars directly above and below the ecliptic plane, in which the planets move around the sun. Meet TESS, NASA's Next Step in the Quest for Alien Earths 2018-03-01T05:00:00Z As the moon dissipated its orbital energy by raising tides on Earth, it would slowly move away from the planet, decreasing the lunar inclination to the ecliptic to its present orientation. When Earth and the Moon Were One 2019-07-02T04:00:00Z Incidentally, this is the reason the sun’s path around the sky is called the “ecliptic”—for “eclipse”! What to Expect for Friday's Record-Breaking Lunar Eclipse 2018-07-26T04:00:00Z After swinging around the Sun, as the diagram shows, it passed about 25m km below Earth on October 14th, before speeding back above the ecliptic plane. The first visitor from another solar system has just been spotted 2017-11-02T04:00:00Z The individual paths of the Moon and planets in the sky all lie close to the ecliptic, although not exactly on it. Astronomy 2016-10-13T00:00:00Z Instead of circling around the “ecliptic” — the plane on which planets, asteroids, comets and other solar system objects orbit the sun — this new thing approached from above. A space rock from another star is spotted in our solar system — a cosmic first 2017-10-27T04:00:00Z Prograde orbital motion is the anticlockwise revolution of bodies around the Sun when seen from above the north ecliptic pole of the Solar System. A retrograde co-orbital asteroid of Jupiter : Nature : Nature Research 2017-03-28T04:00:00Z It’s what astronomers call the plane of the ecliptic. If a ‘Big Whack’ Made the Moon, Did it Also Knock the Earth on Its Side? 2016-11-04T04:00:00Z Batygin and Brown’s proposed orbit for Planet Nine is itself rather slanted, poking out about 30° relative to the ecliptic. Objects beyond Neptune provide fresh evidence for Planet Nine 2016-10-25T04:00:00Z As a result, during most months, the Moon is sufficiently above or below the ecliptic plane to avoid an eclipse. Astronomy 2016-10-13T00:00:00Z Let’s say you want to send a probe above the ecliptic plane of the solar system to study the north pole of the sun. New NASA Spacecraft Will Be Propelled By Light 2016-02-03T05:00:00Z The display is made possible by the unusual alignment of the five planets along what's known as the ecliptic plane of their orbits. Five planets align in dawn sky - BBC News 2016-01-20T05:00:00Z The display is made possible by the uncommon alignment of all five planets along what is called the “ecliptic” plane of their orbits, according to Jim Green, the planetary science division director at NASA. How to View Five Planets Aligning in a Celestial Spectacle 2016-01-19T05:00:00Z Their graduate student, Elizabeth Bailey, showed how the tilted orbit could potentially explain a curious feature of the sun: Rather than being pointed perpendicular to the ecliptic, its north pole is off by about 6°. Objects beyond Neptune provide fresh evidence for Planet Nine 2016-10-25T04:00:00Z Naval Observatory, when the sun appears to touch the Tropic of Capricorn along its ecliptic journey. Geminid meteors are a highlight of December’s skies 2015-11-27T05:00:00Z TB145 is not being considered for that mission because its orbit is highly tilted to the ecliptic, the plane in which the Earth and other planets in orbit. ‘Halloween Asteroid’ Will Fly Near Earth Saturday 2015-10-30T04:00:00Z They are orbiting around the sun in the same plane as Earth, called the plane of the ecliptic. Hemispheres in Space 2014-10-20T04:00:00Z Siding Spring is approaching Mars on a steep angle from south of the ecliptic - the plane on which the planets and other inner Solar System objects sit. Orbiters on alert as comet skims Mars 2014-10-18T04:00:00Z As they spin around the sun, the known planets, asteroids, and most TNOs stay in roughly the same plane, known as the ecliptic. Objects beyond Neptune provide fresh evidence for Planet Nine 2016-10-25T04:00:00Z But Bernoulli calculated that all the planets known at the time orbited within seven degrees of the plane, known as the ecliptic. The Odds, Continually Updated 2014-09-29T04:00:00Z While the original Kepler field of view lies outside the ecliptic, there are plenty of stars, with plenty of planets to discover, in Kepler’s new, ever-changing field. NASA's Zombie Spacecraft Comes Back to Life 2014-05-19T04:00:00Z During the K2 mission, Kepler will stare at target fields in the plane of Earth's orbit, known as the ecliptic, during observing campaigns that last about 75 days each. Busted Exoplanet-Hunting Kepler Space Telescope Gets a New Mission 2014-05-16T04:00:00Z He plotted objects along the ecliptic, adding stars that were too faint to be on the maps, and looking for any star that seemed to move. See Three Asteroids in the Night Sky This Month 2013-08-06T23:45:00.487Z One new object, known as 2016 NM56, has an orbit tilted so far out of the ecliptic that it essentially orbits backward. Objects beyond Neptune provide fresh evidence for Planet Nine 2016-10-25T04:00:00Z Crossing it at an angle is a green line which marks the ecliptic, the path which the sun follows in front of the background stars. Vernal Equinox Marks First Day of Spring Today 2013-03-20T17:45:05.467Z And yet the Earth's obliquity of the ecliptic is still about 23.4°. Apple maps: damned if you do, Google if you don't 2012-09-24T10:58:47Z The present names of the lunar months, indicated above, were derived from the nakshatras, which are certain conspicuous stars and groups of stars lying more or less along the neighbourhood of the ecliptic. Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 4 "Hero" to "Hindu Chronology" 2012-04-04T02:00:56.447Z The inclination of the plane of the satellites to the ecliptic is 98°, and the planet ascends almost in the plane of the ecliptic. Mysterious Psychic Forces An Account of the Author's Investigations in Psychical Research, Together with Those of Other European Savants 2012-03-28T02:00:29.747Z He found the inclination of the ecliptic to the plane of the equator to be 23° 51′. Astronomical Curiosities Facts and Fallacies 2012-03-27T02:00:18Z Notice the months marked along the ecliptic: these indicate the sun's position. Vernal Equinox Marks First Day of Spring Today 2013-03-20T17:45:05.467Z There were 1,080 stars in his catalogue, and he referred their positions to the ecliptic and the equinoxes. Astronomy: The Science of the Heavenly Bodies 2012-03-17T02:01:02.630Z But they mark divisions of the ecliptic: according to one system, twenty-seven divisions, each of 13 degrees 20 minutes; according to two other systems, twenty-seven or twenty-eight unequal divisions, which we need not explain here. Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 4 "Hero" to "Hindu Chronology" 2012-04-04T02:00:56.447Z Let us, however, adopt for the method of movement of these satellites around their planet the projection upon the plane of the ecliptic, as has always been the custom. Mysterious Psychic Forces An Account of the Author's Investigations in Psychical Research, Together with Those of Other European Savants 2012-03-28T02:00:29.747Z Variation in obliquity of the ecliptic; about 47″ in 100 years. Astronomical Curiosities Facts and Fallacies 2012-03-27T02:00:18Z The point at which the equator and the ecliptic cross, traditionally called "the first point in Aries," actually lies today in the constellation Pisces. Vernal Equinox Marks First Day of Spring Today 2013-03-20T17:45:05.467Z In 1898 the long ecliptic streamers of the corona were successfully photographed for the first time. Astronomy: The Science of the Heavenly Bodies 2012-03-17T02:01:02.630Z The sun of our moral universe is entering a new ecliptic, no longer deformed by those images, Cancer, Taurus, Leo, Sagittarius, but beaming with the mild radiance of those heavenly signs, Faith, Hope, and Charity. Famous American Statesmen 2012-03-01T03:00:26.167Z It is evident from the figure that, at that moment, the planet presented to us the pole most elevated above the ecliptic; that is, its north pole. Mysterious Psychic Forces An Account of the Author's Investigations in Psychical Research, Together with Those of Other European Savants 2012-03-28T02:00:29.747Z Hipparchus, Ptolemy, and Al-Sufi referred the positions of the stars to the ecliptic. Astronomical Curiosities Facts and Fallacies 2012-03-27T02:00:18Z The sun was so long in reaching the zenith, and so slow in passing down the steep ecliptic way to the occident. The Iron Furnace Slavery and Secession 2012-02-14T03:00:24.963Z The planes of all their orbits are very nearly the same as that of the ecliptic, or plane in which the earth moves. Astronomy: The Science of the Heavenly Bodies 2012-03-17T02:01:02.630Z The greater and lesser circles were then pointed out, the meaning of longitude and latitude defined, the form and divisions of the earth mentioned and descanted upon, and the sun’s path through the ecliptic described. Antigua and the Antiguans, Volume I (of 2) A full account of the colony and its inhabitants from the time of the Caribs to the present day 2012-02-09T03:00:15.267Z Zodiac, zō′di-ak, n. an imaginary belt in the heavens, having as its mesial line the ecliptic or apparent path of the sun, and containing the twelve constellations, called signs of the zodiac. Chambers's Twentieth Century Dictionary (part 4 of 4: S-Z and supplements) 2012-01-30T03:00:19.113Z Prof. Kreutz found its period of revolution round the sun to be about 409 years, with the plane of the orbit nearly at right angles to the plane of the ecliptic. Astronomical Curiosities Facts and Fallacies 2012-03-27T02:00:18Z Thus the Babylonians marked off the constellations which seemed to touch nearest upon the course of the sun, and arrived at the signs of the ecliptic or zodiac. The History of Antiquity, Vol. I (of VI) 2012-01-28T03:00:28.213Z Now, let us look earthward from our imaginary station near the north pole of the ecliptic. Astronomy: The Science of the Heavenly Bodies 2012-03-17T02:01:02.630Z This cardboard brim represented the “plane of the earth’s equator,” just as the pane of glass represented the “plane of the ecliptic.” The Star People 2011-11-06T02:00:16.133Z He notes, however, that about 7500 B. C. the obliquity of the ecliptic was probably nearly 1° greater than at present. Climatic Changes Their Nature and Causes 2011-10-28T02:00:24.840Z It is usually elliptical in shape, with its longer axis lying nearly in the plane of the ecliptic. Astronomical Curiosities Facts and Fallacies 2012-03-27T02:00:18Z They divided the daily course of the sun, like the ecliptic, into 360 parts, and then attempted to measure these at the equinox. The History of Antiquity, Vol. I (of VI) 2012-01-28T03:00:28.213Z This makes the plane of the Milky Way lie at an angle of about 60 degrees with the ecliptic, which it intersects not far from the solstices. Astronomy: The Science of the Heavenly Bodies 2012-03-17T02:01:02.630Z Since the “plane of the equator” is always at right angles to the slanting axis of the earth, the “plane of the equator” is always at a slant to the “plane of the ecliptic.” The Star People 2011-11-06T02:00:16.133Z Like the references to the sun’s daily movements those that mention his yearly motion along the ecliptic are also usually time references. Astronomical Lore in Chaucer 2011-10-13T02:00:42.860Z This angle, which may be called the obliquity of Mars’ ecliptic, does not differ much from that of the earth. Astronomical Curiosities Facts and Fallacies 2012-03-27T02:00:18Z I have seen your hurricanos, and your calentures, and your ecliptics, and your tropic lines, sir, an you go to that, sir. Dryden's Works Vol. 3 (of 18) Sir Martin Mar-All; The Tempest; An Evening's Love; Tyrannic Love 2011-10-08T02:00:22.420Z It is founded on the Galaxy, the basal plane of stellar distribution, just as the ecliptic is the fundamental circle of reference in the solar system. Astronomy: The Science of the Heavenly Bodies 2012-03-17T02:01:02.630Z The cardboard brim is slanted down, below the level of the ‘plane of the ecliptic.’ The Star People 2011-11-06T02:00:16.133Z This is the sun’s apparent yearly path, or the ecliptic. Astronomical Lore in Chaucer 2011-10-13T02:00:42.860Z These appearances he 410 referred with great acuteness to the slight inclination of the sun’s axis of rotation to the plane of the ecliptic. Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 4 "G" to "Gaskell, Elizabeth" 2011-08-24T02:00:20.690Z Because it was, in Chaucer's time, as it now is, nearly upon the line of the ecliptic. 3rd. Notes and Queries, Vol. III, Number 83, May 31, 1851 A Medium of Inter-communication for Literary Men, Artists, Antiquaries, Geneologists, etc 2011-07-26T02:00:17.693Z It resembles the equatorial astrolabe somewhat, but has a second ring inclined to the equatorial one at an angle equal to the obliquity of the ecliptic. Astronomy: The Science of the Heavenly Bodies 2012-03-17T02:01:02.630Z Astronomers say it this way: they say that the earth revolves around the sun ‘in the plane of the ecliptic.’ The Star People 2011-11-06T02:00:16.133Z This great circle of the celestial sphere is the ecliptic. Astronomical Lore in Chaucer 2011-10-13T02:00:42.860Z For instance, Earth 2 can be seen hanging in the sky near Polaris, the north star, which would put its orbit perpendicular to the solar system's ecliptic—and ripe for discovery long ago. Learn to Forgive Yourself in a Parallel Universe 2011-07-21T22:45:00.983Z A siderial year, the period in which the sun appears to have travelled round the ecliptic, so as to have arrived opposite to any particular star, from which his course was calculated. Conversations on Natural Philosophy, in which the Elements of that Science are Familiarly Explained 2011-07-12T02:00:28.027Z Then the observation of a star's longitude and latitude, as referred to the ecliptic plane, could be made, quite as well as that of right ascension and declination on the equatorial plane. Astronomy: The Science of the Heavenly Bodies 2012-03-17T02:01:02.630Z If you fasten a cardboard ring around the orange at the equator the cardboard will then be at an angle with the surface of the water, which represents the “plane of the ecliptic.” The Star People 2011-11-06T02:00:16.133Z These two terms are now practically obsolete, having been used formerly to denote angular distance north or south of the ecliptic and angular distance measured east and west along circles parallel to the ecliptic. Astronomical Lore in Chaucer 2011-10-13T02:00:42.860Z The fifteen constellations on the south of the ecliptic were:— The Whale. Astronomical Myths Based on Flammarions's History of the Heavens 2011-06-24T02:00:15.873Z A broad belt in the heavens, extending nearly eight degrees on each side of the ecliptic; the planes of the orbits of all the planets are included within this space. Conversations on Natural Philosophy, in which the Elements of that Science are Familiarly Explained 2011-07-12T02:00:28.027Z Then came the necessity of finding out about the inclination or obliquity of the ecliptic, and this is where the gnomon was employed. Astronomy: The Science of the Heavenly Bodies 2012-03-17T02:01:02.630Z The cardboard brim, or ‘plane of the equator,’ is slanted up, above the ‘plane of the ecliptic.’ The Star People 2011-11-06T02:00:16.133Z The measurements that correspond in astronomy to terrestrial latitude and longitude are called declination and right ascension and are obviously made with reference to the celestial equator, not the ecliptic. Astronomical Lore in Chaucer 2011-10-13T02:00:42.860Z They are those through which the sun appears to pass in his annual journey round the ecliptic, entering one region each month. Astronomical Myths Based on Flammarions's History of the Heavens 2011-06-24T02:00:15.873Z 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 In observing, the equatorial ring was revolved round till the ecliptic ring came into coincidence with the plane of the ecliptic in the sky. Astronomy: The Science of the Heavenly Bodies 2012-03-17T02:01:02.630Z Attention is called to four points on the ecliptic, namely, the vernal equinox, the autumnal equinox, the winter solstice, and the summer solstice. Our Calendar 2011-05-25T02:00:17.450Z The zodiac is an imaginary belt of the celestial sphere, extending 8° on each side of the ecliptic, within which the orbits of the sun, moon, and planets appear to lie. Astronomical Lore in Chaucer 2011-10-13T02:00:42.860Z By the observation of the gnomon at mid-day on the day of the solstice he determined the obliquity of the ecliptic in his epoch. Astronomical Myths Based on Flammarions's History of the Heavens 2011-06-24T02:00:15.873Z It is called the ecliptic, because eclipses always happen in the direction of that line, from the earth. Conversations on Natural Philosophy, in which the Elements of that Science are Familiarly Explained 2011-07-12T02:00:28.027Z But it was necessary to work quickly, as the adjustment on the ecliptic would soon disappear and have to be renewed. Astronomy: The Science of the Heavenly Bodies 2012-03-17T02:01:02.630Z Each chart represents the ecliptic, which is the apparent path of the Sun or real path of the Earth, also the names of the months as they occur in their seasons. Our Calendar 2011-05-25T02:00:17.450Z The purpose of the signs of the zodiac is to show the position of the sun in the ecliptic at different times. Astronomical Lore in Chaucer 2011-10-13T02:00:42.860Z It contained 48 constellations, of which 21 belonged to the Northern, 15 to the Southern hemisphere, and the remaining twelve were those of the zodiac, situated along the ecliptic. Astronomical Myths Based on Flammarions's History of the Heavens 2011-06-24T02:00:15.873Z When passing to the north of the ecliptic, it is called the ascending node; when to the south of it, the descending node. Conversations on Natural Philosophy, in which the Elements of that Science are Familiarly Explained 2011-07-12T02:00:28.027Z The average inclination of their orbits to the plane of the ecliptic is not far from 8 degrees. Astronomy: The Science of the Heavenly Bodies 2012-03-17T02:01:02.630Z Beginning today and lasting for a few weeks, Mercury, Venus, Jupiter and Mars will be visible in the early morning sky, aligned roughly along the ecliptic — or the path the sun travels throughout the day. Six Planets Will Be Aligning, but the Earth Isn't Ending 2011-05-10T09:30:00Z The angular velocity of the moon’s motion in its projected great circle is much greater than that of the sun in the ecliptic. Astronomical Lore in Chaucer 2011-10-13T02:00:42.860Z At this time the stars of the Crab just appeared in the morning, but with them, at some distance from the ecliptic, the bright star Sirius also rose. Astronomical Myths Based on Flammarions's History of the Heavens 2011-06-24T02:00:15.873Z This circle, in which the sun thus appears to move, and which passes through the middle of the zodiac, is called the ecliptic. Conversations on Natural Philosophy, in which the Elements of that Science are Familiarly Explained 2011-07-12T02:00:28.027Z The third element in the composite is the outer ecliptic corona, for the most part made up of long streamers. Astronomy: The Science of the Heavenly Bodies 2012-03-17T02:01:02.630Z Entice the trusty sun, if that you can, From his ecliptic line; beckon the sky. The Seven Lamps of Architecture 2011-04-20T02:00:20.760Z The plane of the ecliptic is that by which the position of the planets and the latitude and longitude of the stars are reckoned. The New Gresham Encyclopedia Volume 4, Part 2: Ebert to Estremadura 2011-04-14T02:00:56.200Z Its importance is derived from its relation to the ecliptic, the pole of which is determined by reference to the stars of the first coil of the body. Astronomical Myths Based on Flammarions's History of the Heavens 2011-06-24T02:00:15.873Z 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 Since the sun moves in the ecliptic, it is in the last-named sense the point of intersection of the ecliptic and the celestial equator. Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 7 "Equation" to "Ethics" 2011-02-27T03:00:31.973Z The visible corona extended on both sides of the sun along the ecliptic for immense distances—at least twelve lunar diameters, about eleven million miles. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 10 "Echinoderma" to "Edward" 2011-01-19T03:00:19.027Z The ecliptic has been divided into twelve equal parts, each of which contains 30�, and which are occupied by the twelve celestial signs, viz.: The New Gresham Encyclopedia Volume 4, Part 2: Ebert to Estremadura 2011-04-14T02:00:56.200Z Circling round the pole of the ecliptic, and formed by a sinuous line of stars passing round from the Great Bear to the Lyre, is the Dragon, which owes its name to its form. Astronomical Myths Based on Flammarions's History of the Heavens 2011-06-24T02:00:15.873Z Those points in the orbit of the moon, or of a planet, where it crosses the ecliptic or plane of the earth's orbit. Conversations on Natural Philosophy, in which the Elements of that Science are Familiarly Explained 2011-07-12T02:00:28.027Z So also the new moon will cast its shadow in the plane of the ecliptic, and this shadow, falling upon the earth, produced the total solar eclipse of May 28, 1900. A Text-Book of Astronomy 2011-01-05T03:00:57.347Z Hansen’s method differs from that of Bessel in that the ecliptic is taken as the fundamental plane instead of the equator. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 10 "Echinoderma" to "Edward" 2011-01-19T03:00:19.027Z From the First Point of Aries, or the place of the sun at the vernal equinox, the degrees of the ecliptic are counted from west to east. The New Gresham Encyclopedia Volume 4, Part 2: Ebert to Estremadura 2011-04-14T02:00:56.200Z Along the ecliptic, Orion is followed by Gemini, Cancer and Leo. Sky Watch: Jupiter opens the night's show in early January 2011-01-01T22:46:00Z In the centre of these the ecliptic is situated. Conversations on Natural Philosophy, in which the Elements of that Science are Familiarly Explained 2011-07-12T02:00:28.027Z This angle is called the obliquity of the ecliptic. A Text-Book of Astronomy 2011-01-05T03:00:57.347Z The axis of X on the fundamental plane is parallel to the plane of the ecliptic; that of Y perpendicular to it. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 10 "Echinoderma" to "Edward" 2011-01-19T03:00:19.027Z The Greeks observed that eclipses of the sun and moon took place near this circle; whence they called it the ecliptic. The New Gresham Encyclopedia Volume 4, Part 2: Ebert to Estremadura 2011-04-14T02:00:56.200Z The vernal equinox is taken as the initial point on the sphere from which co-ordinates are measured in the equatorial and ecliptic systems. Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 7 "Arundel, Thomas" to "Athens" Every equinox takes place a few seconds of a degree, before the earth arrives at that part of the ecliptic in which the preceding equinox occurred. Conversations on Natural Philosophy, in which the Elements of that Science are Familiarly Explained 2011-07-12T02:00:28.027Z Exercise 12.—After a half dozen observations of the sun have been plotted upon the map, find by measurement the rate, in degrees per day, at which the sun moves along the ecliptic. A Text-Book of Astronomy 2011-01-05T03:00:57.347Z The ecliptic itself is the great circle in which this plane meets the celestial sphere. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 10 "Echinoderma" to "Edward" 2011-01-19T03:00:19.027Z The axis of the earth is not fixed in direction in space, but performs a slow conical motion about the pole of the ecliptic in about 26,000 years. The New Gresham Encyclopedia Volume 4, Part 2: Ebert to Estremadura 2011-04-14T02:00:56.200Z The rate of motion is slightly variable from century to century owing to the secular motion of the plane of the ecliptic. Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 7 "Arundel, Thomas" to "Athens" Mrs. B. Besides the usual division of circles into degrees, the ecliptic is divided into twelve equal parts, called signs, which bear the name of the constellations through which this circle passes in the heavens. Conversations on Natural Philosophy, in which the Elements of that Science are Familiarly Explained 2011-07-12T02:00:28.027Z If the obliquity of the ecliptic were made 10� greater, what would be the effect upon the seasons in the temperate zones? A Text-Book of Astronomy 2011-01-05T03:00:57.347Z Attempts have been made by Laplace and his successors to fix certain limits within which the obliquity of the ecliptic shall always be confined. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 10 "Echinoderma" to "Edward" 2011-01-19T03:00:19.027Z The angle at which the ecliptic and equator are mutually inclined is also variable, and has been diminishing for about 4000 years at the rate of about 50 seconds in a century. The New Gresham Encyclopedia Volume 4, Part 2: Ebert to Estremadura 2011-04-14T02:00:56.200Z Their sidereal year was 4�m too long,7 and they kept the ecliptic stationary among the stars, making no allowance for the shifting of the equinoxes. Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 7 "Arundel, Thomas" to "Athens" If the ecliptic relates only to the heavens, why is it described upon the terrestrial globe? Conversations on Natural Philosophy, in which the Elements of that Science are Familiarly Explained 2011-07-12T02:00:28.027Z Is there any connection between these limits and the obliquity of the ecliptic? A Text-Book of Astronomy 2011-01-05T03:00:57.347Z Owing to the action of the planets, the position of the ecliptic is subject to a slow secular variation amounting, during our time, to nearly 47″ per century. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 10 "Echinoderma" to "Edward" 2011-01-19T03:00:19.027Z A hundred years later Hipparchus determined more exactly the length of the solar year, and the eccentricity of the ecliptic, discovered the precession of the equinoxes, and even undertook a catalogue of the stars. The New Gresham Encyclopedia. Vol. 1 Part 2 Amiel to Atrauli In other words the equator would be drawn into coincidence with the ecliptic. Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 7 "Arundel, Thomas" to "Athens" In the astral theology of Babylonia and Assyria, Anu, Bel and Ea became the three zones of the ecliptic, the northern, middle and southern zone respectively. Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 2 "Anjar" to "Apollo" How many days will be required for it to move completely around the ecliptic from vernal equinox back to vernal equinox again? A Text-Book of Astronomy 2011-01-05T03:00:57.347Z The obliquity of the ecliptic is the angle which its plane makes with that of the equator. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 10 "Echinoderma" to "Edward" 2011-01-19T03:00:19.027Z Ecliptica or the ecliptic, is an imaginary line in the heavens in which the sun was supposed to have performed its annual course. The Borghesi Astronomical Clock in the Museum of History and Technology Contributions from the Museum of History and Technology, Paper 35, the Smithsonian Institution United States National Museum Bulletin 240 Actually the curve in which it moves is nearly a circle; but the distance varies slightly owing to the minute secular variation in the position of the ecliptic, caused by the action of the planets. Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 7 "Arundel, Thomas" to "Athens" Its name may be possibly derived from the fact that when the sun arrives at this part of the ecliptic it apparently retraces its path, resembling in some manner the sidelong motion of a crab. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 2 "Camorra" to "Cape Colony" Use your drawings and the positions of the moon plotted upon the map to answer the following questions: Does the direction of the line joining the horns have any special relation to the ecliptic? A Text-Book of Astronomy 2011-01-05T03:00:57.347Z The plane of the ecliptic is that plane in or near which the centre of gravity of the earth and moon revolves round the sun. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 10 "Echinoderma" to "Edward" 2011-01-19T03:00:19.027Z Finally, on the fourth and last circle are seen more prime minutes of the circle for reducing the orbit of the moon to the ecliptic. The Borghesi Astronomical Clock in the Museum of History and Technology Contributions from the Museum of History and Technology, Paper 35, the Smithsonian Institution United States National Museum Bulletin 240 Chou Kung, an able mathematician, determined with surprising accuracy the obliquity of the ecliptic; but his attempts to estimate the sun’s distance failed hopelessly as being grounded on belief in the flatness of the earth. Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 7 "Arundel, Thomas" to "Athens" Pythagoras, 580 B.C., knew, in addition to the sphericity of the earth, the obliquity of the ecliptic, the identity of the evening and morning star, and that the earth revolves round the sun. The Origin of the World According to Revelation and Science The straight line in Fig. 14, with cross ruling upon it, is a part of the ecliptic, and the numbers placed opposite it represent the distance, in degrees, from the vernal equinox. A Text-Book of Astronomy 2011-01-05T03:00:57.347Z The motion of the ecliptic produces a secular variation in the obliquity which is now diminishing by an amount nearly equal to the entire motion of the ecliptic itself. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 10 "Echinoderma" to "Edward" 2011-01-19T03:00:19.027Z There will also be an ecliptic new moon that is in conjunction with a solar eclipse, or rather with a terrestrial eclipse. The Borghesi Astronomical Clock in the Museum of History and Technology Contributions from the Museum of History and Technology, Paper 35, the Smithsonian Institution United States National Museum Bulletin 240 The ecliptic intersects the celestial equator at two opposite points, the equinoxes, at an angle of 23� 27′. Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 7 "Arundel, Thomas" to "Athens" Astronomers consider it improbable that the obliquity of the ecliptic has materially changed, and serious differences of opinion exist as to the effects which a greater or less obliquity would produce on climate. The Origin of the World According to Revelation and Science It was named the Happy Dream, and it was presently drifting in an excessively lonely orbit high above the ecliptic, between nothing and nowhere. The Legion of Lazarus The laws of motion of the ecliptic and equator are stated in the article Precession of the Equinoxes. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 10 "Echinoderma" to "Edward" 2011-01-19T03:00:19.027Z As the new moon ecliptic falls during the day, the eclipse will not be visible, since the earth denies a sight of the moon which is below the horizon. The Borghesi Astronomical Clock in the Museum of History and Technology Contributions from the Museum of History and Technology, Paper 35, the Smithsonian Institution United States National Museum Bulletin 240 The Starhound and the Arrow bracketed her a million miles above the plane of the ecliptic near Saturn's orbit, and killed her. The Peacemaker We coasted at a few thousand miles per second along the plane of the ecliptic while we took stock. Noble Redman Widen the thin ecliptic of thy life; Revolve upon another axis, man; Let love, the sun of life, beam meltingly Upon thy heart and thaw it into happiness. The Scarlet Stigma A Drama in Four Acts He was going in at a high angle to the ecliptic, so meteors and bits of stray celestial trash weren't likely to be bothersome. The Hate Disease All other theories of the make-up of the universe, however admirable, and however many there are, turn the sun and earth around in an ecliptic in an annual movement. The Borghesi Astronomical Clock in the Museum of History and Technology Contributions from the Museum of History and Technology, Paper 35, the Smithsonian Institution United States National Museum Bulletin 240 Also, he was the first to observe the obliquity of the ecliptic; he taught that the moon received its light from the sun and that the earth is round. History of Human Society A model "sun" on a pin could be plugged in to any one of 360 holes drilled in at equal intervals along the band of the ecliptic. On the Origin of Clockwork, Perpetual Motion Devices, and the Compass One is that the inclinations are measured from the plane of the ecliptic, instead of being measured from the plane of the orbit of the hypothetical planet. Essays: Scientific, Political, & Speculative, Vol. I Far above the plane of the ecliptic, he could feel half a ton of dust more or less drifting outside the lanes of human travel. The Game of Rat and Dragon The circle which cuts those 12 parts transversely in the middle, you call the ecliptic. The Borghesi Astronomical Clock in the Museum of History and Technology Contributions from the Museum of History and Technology, Paper 35, the Smithsonian Institution United States National Museum Bulletin 240 The nebula No. 4373 is of a planetary character, and interesting as occupying the pole of the ecliptic. Pleasures of the telescope An Illustrated Guide for Amateur Astronomers and a Popular Description of the Chief Wonders of the Heavens for General Readers The ancients knew that sun moon and planets all keep near to the ecliptic, within a belt known as the zodiac: none strays away into other parts of the sky. Pioneers of Science The swarms travel along paths that resemble cometary orbits; they are very elongated ellipses, inclined at all angles to the plane of the ecliptic. The Astronomy of the Bible An Elementary Commentary on the Astronomical References of Holy Scripture He felt the dust which he had noticed earlier high above the ecliptic. The Game of Rat and Dragon In any ecliptic full moons, the patent number of inches of immersion somehow affects the minds of the cultured, but also the scheme of maximum obscuration affects the eyes of the illiterate themselves. The Borghesi Astronomical Clock in the Museum of History and Technology Contributions from the Museum of History and Technology, Paper 35, the Smithsonian Institution United States National Museum Bulletin 240 On his return to Greece he founded the Ionian school, and taught the sphericity of the Earth, the obliquity of the ecliptic, and the true causes of eclipses of the Sun and Moon. The Astronomy of Milton's 'Paradise Lost' This path is known as the ecliptic, because eclipses only happen when the moon is in it. Pioneers of Science In astronomical language, the calculation of a horoscope is simply the calculation of the "azimuths" of the different planets, and of certain imaginary points on the ecliptic for a given time. The Astronomy of the Bible An Elementary Commentary on the Astronomical References of Holy Scripture Here's no ecliptic threatens thee with night, Although the wiser few take in thy light. Poems of Henry Vaughan, Silurist, Volume II When the second index is descending from the head of the dragon to the tail, the latitude will be to the north of the solar path; that is, the ecliptic. The Borghesi Astronomical Clock in the Museum of History and Technology Contributions from the Museum of History and Technology, Paper 35, the Smithsonian Institution United States National Museum Bulletin 240 The Earth’s axis is inclined 63� 33' to the plane of the ecliptic, and is always directed to the same point in the heavens. The Astronomy of Milton's 'Paradise Lost' Those near the pole of the ecliptic will describe circles, being always at right angles to the motion. Pioneers of Science Chief of these is the great dragon coiled round the pole of the ecliptic and the pole of the equator as the latter was observed some 4600 years ago. The Astronomy of the Bible An Elementary Commentary on the Astronomical References of Holy Scripture It will be remembered that Uranus presents the unusual spectacle of a system of satellites travelling nearly at right angles to the plane of the ecliptic. A Popular History of Astronomy During the Nineteenth Century Fourth Edition There, at the time of the true ecliptic full moon, as the pointer of the third little index shows, you can ascertain the hours, etc., of duration, and the inches of greatest obscuration. The Borghesi Astronomical Clock in the Museum of History and Technology Contributions from the Museum of History and Technology, Paper 35, the Smithsonian Institution United States National Museum Bulletin 240 Milton then describes his progress through the stellar regions, his landing in the Sun and what he saw there, and the termination of his journey when he descends from the ecliptic down to the Earth. The Astronomy of Milton's 'Paradise Lost' It revolves the same way as other planets, but the plane of its orbit is tilted 10° to the plane of the ecliptic, which was an exceptionally large amount. Pioneers of Science The Dragon marked the poles of both ecliptic and equator; the Watersnake marked the equator almost from node to node; the Serpent marked the equator at one of the nodes. The Astronomy of the Bible An Elementary Commentary on the Astronomical References of Holy Scripture It connects, casually and quantitatively, the periods of the moon's revolution and of the earth's rotation, the obliquity of the ecliptic, the inclination and eccentricity of the lunar orbit. A Popular History of Astronomy During the Nineteenth Century Fourth Edition Let us suppose, for instance, that the star is situated near the pole of the ecliptic, then the telescope will be conveyed by the earth's motion in a direction perpendicular to its length. The Story of the Heavens ‘The planet is surrounded by a slender flat ring everywhere distinct from its surface, and inclined to the ecliptic.’ The Astronomy of Milton's 'Paradise Lost' The obliquity of the ecliptic is also changing periodically, but not greatly: the change is less than three degrees. Pioneers of Science Since she moves round the sun in a circle, and the axis through her north and south poles lies at right angles to her ecliptic, she has no "seasons," she can have no "year." The Astronomy of the Bible An Elementary Commentary on the Astronomical References of Holy Scripture And down the ecliptic garden path, wafted by a stellar breeze, drifted the ocher rose of Mars ... Star Mother We shall, for simplicity, refer only to a star at the pole of the ecliptic. The Story of the Heavens The obliquity of the ecliptic was accurately determined, and an arc of the meridian was measured between Syene and Alexandria. The Astronomy of Milton's 'Paradise Lost' The ecliptic is a great circle of the sphere, and is usually drawn on both celestial and terrestrial globes. Pioneers of Science Moon's North Node, or when she crosses the ecliptic into north latitude. How to Read the Crystal or, Crystal and Seer Lance cleared the ecliptic by a hundred million miles; then with the Solar System spread out flat below him, he opened up his flight orders. Next Door, Next World Let us, for simplicity, think of a star situated near the pole of the ecliptic, and thus appearing to revolve annually in a circle, whether we regard either the phenomenon of parallax or of aberration. The Story of the Heavens They were all in a straight line and parallel with the ecliptic; two of them were situated to the east, and one to the west of Jupiter. The Astronomy of Milton's 'Paradise Lost' Something they must have known of astronomy to practise astrology, to divide the ecliptic, and to effect the exact orientation of the Pyramids. The International Magazine, Volume 2, No. 3, February, 1851 LATITUDE.�The distance of any planet north or south of the ecliptic. How to Read the Crystal or, Crystal and Seer Lance cut the ecliptic at a different angle than before, and Terra was farther along in her journey around Sol. Next Door, Next World This point is about 5° from the pole of the ecliptic. The Story of the Heavens When crossing the ecliptic from south to north the Moon is in its ascending node, and when crossing from north to south in its descending node. The Astronomy of Milton's 'Paradise Lost' "When the new moon is in such a part of the ecliptic as to appear turned much over upon her back, wet weather is expected." The Proverbs of Scotland LONGITUDE.�The angular distance of a heavenly body from the first point of Aries, measured from the ecliptic as seen from the earth. How to Read the Crystal or, Crystal and Seer You hoisted your scout ship aloft under high-gee, cleared the ecliptic, then swung out of normal space and jumped. Next Door, Next World This region lies in the constellation Draco, at the pole of the ecliptic. The Story of the Heavens The obliquity of the ecliptic affected with nutation. 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. Since the axis of the earth's rotation is inclined 23° 28' to the plane of the ecliptic, the two hemispheres will become alternately warmer and cooler than each other. The World's Greatest Books — Volume 15 — Science Oh that the circle of the ecliptic would coincide with that of the equator! Northern Travel Summer and Winter Pictures of Sweden, Denmark and Lapland These hairy orbs that appear in all directions, and whose trajectories are sometimes actually perpendicular to the plane of the ecliptic, appear to obey no regular law. Astronomy for Amateurs The circular paths of the stars remote from the pole of the ecliptic will, however, be only seen somewhat edgewise, and thus the apparent paths will be elliptical, as we actually find them. The Story of the Heavens That part of the ecliptic whence the sun descends southward. 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. But the moon does not always cross the ecliptic where the sun is, nor uniformly in the same part. Harper's New Monthly Magazine, Vol. 3, July, 1851 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. Babylonians and Assyrians, Life and Customs Further, this plane of the ecliptic is to the celestial sphere what the sea-level is to the earth. Aether and Gravitation The centre of the circle in the constellation of Draco is the pole of the ecliptic. The Story of the Heavens These are great circles passing through the poles of the ecliptic, and so cutting it at right angles. 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. Again, Jupiter's axis of rotation is nearly perpendicular to the plane of the ecliptic, while that of Mars is inclined at an angle of fifty-nine degrees forty-two minutes. A Theory of Creation: A Review of 'Vestiges of the Natural History of Creation' The three black circles are imaginary sections of the Earth’s shadow as cast when the Earth is in three successive positions in the ecliptic. The Story of Eclipses In a similar way astronomers say that a star is a certain height above the plane of the ecliptic. Aether and Gravitation We thus see that the average precessional effect of the moon simply conspires with that of the sun to produce a revolution around the pole of the ecliptic. The Story of the Heavens The part of the ecliptic above the horizon. 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. He’d been mapping within a narrow range above and below the line of this system’s ecliptic. The Aliens The Moon moving in a different plane, inclined to the first mentioned one to the extent of rather more than 5°, the Moon’s orbit will evidently intersect the ecliptic in two places. The Story of Eclipses We have now only to go one step further to get our complete conception of the plane of the ecliptic. Aether and Gravitation Each star which happens to lie on the ecliptic oscillates to and fro along the ecliptic through an amplitude of 40·9 seconds. The Story of the Heavens The two points where the tropics meet the ecliptic, in longitude 90° and 270°. 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. "Twenty-four hours out, twenty-four hours back, ninety degrees to the ecliptic, and all the accelleration I can stand both ways." Gold in the Sky We have already seen that the Moon’s orbit, like that of every other planetary member of the Solar System, has two crossing places with respect to the ecliptic which are called “Nodes.” The Story of Eclipses Hitherto we have only dealt with the lines of force proceeding from the sun equatorially, which lines form the plane of the ecliptic. Aether and Gravitation As we proceed from the pole of the ecliptic, we still find that each star exhibits an annual movement of the same character as the stars just considered. The Story of the Heavens The angular distance of a heavenly body from the first point of Aries, measured upon the ecliptic, as viewed from the earth. 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. They came at an angle to the plane of the ecliptic, but they leveled down to it now, and slanted toward giant Jupiter and Jovian worlds. The Ultimate Weapon We know also that the apparent motion of the Sun causes that body to traverse the whole of the ecliptic in the course of the year. The Story of Eclipses We have to conceive of this condensed Aether situated north and south of the plane of the ecliptic, and situated probably millions of miles away. Aether and Gravitation When we pass to stars on the southern side of the ecliptic, we see the same series of changes proceed in an inverse order. The Story of the Heavens The angular distance of a body from the first point of Aries, measured upon the ecliptic, as viewed from the sun. 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. He looked on without comment as Patrolman Willis matter-of-factly performed the tricky task of determining the ecliptic while a solar system's sun was little more than a first-magnitude star. A Matter of Importance The nearly double velocity in apparent ecliptic motion of Venus as compared with Mars: "Wherefore she spedded as fast in her way Almost in one day as he did in tway." 3d. Notes and Queries, Number 74, March 29, 1851 A Medium of Inter-communication for Literary Men, Artists, Antiquaries, Genealogists, etc. If, however, their planes do not coincide with the plane of the ecliptic, then it is very possible that they will not reappear again, but pass on to some other stellar system. Aether and Gravitation As the earth travels in its annual path around the sun, the axis of the earth is directed to a point in the heavens which is 23-1⁄2° from the pole of the ecliptic. The Story of the Heavens An arc of the ecliptic, contained between the first point of Aries and a circle of longitude passing through the centre of the body. 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. Willis made the usual tests for direction of rotation, to get the ecliptic plane. A Matter of Importance It is obvious that these astrological hours will be of unequal length, as equal portions of the ecliptic subtend unequal angles at the pole of the equator. Notes and Queries, Number 69, February 22, 1851 A Medium of Inter-communication for Literary Men, Artists, Antiquaries, Genealogists, etc. Lancaster wasn't told anything about its orbit, but guessed that it had a path a million miles or so sunward from Earth and highly tilted with respect to the ecliptic. Security From day to day, and even from hour to hour, the point gradually moves along the ecliptic, so as to complete the circuit in a year. The Story of the Heavens The ascending node is the point where it passes from the south to the north side of the ecliptic; the descending node is the opposite point, where the latitude changes from north to south. 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. It is inclined to the plane of the ecliptic, causing the seasons, and that brings a new set of factors into the problem. The Boy with the U. S. Weather Men It reaches beyond and lies over the earth's orbit at the time of the November meteors, and makes but a small angle with the ecliptic. Chambers's Edinburgh Journal, No. 449 Volume 18, New Series, August 7, 1852 Furthermore, one of them shorted out her engine controls, so that she swooped out of the ecliptic plane and fell into an eccentric skew orbit. Security A star which happened to lie on the ecliptic will not be at all deranged by aberration from its mean place when it happens that the apex coincides with the star. The Story of the Heavens A broad zone or belt of the heavens, the middle of which is the ecliptic, extending 9° on either side of it. 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. Three degrees on the down-plane of the ecliptic, and fifty-four degrees to starboard. On the Trail of the Space Pirates “One authority says that the Gulf Stream ‘is caused by the motion of the sun in the ecliptic,’ and I think there is a good deal of reason in this. The White Squall A Story of the Sargasso Sea We might have gone only a little way into space, up from the plane of the ecliptic and taken plates through a wide angle camera. Islands of Space The precessional movement is represented by a revolution around the pole of the ecliptic, as is shown in the figure. The Story of the Heavens It is divided into twelve signs, each measuring 30° along the ecliptic. 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. From above, below, and almost every compass point on the plan of the ecliptic, they closed in, deadly blasters aimed, gunners ready to fire. On the Trail of the Space Pirates The Sirius loafed along through the ether at normal acceleration just outside the orbit of Mars and a million miles north of the ecliptic plane. Spacehounds of IPC They had come into the planetary group at right angles to the plane of the ecliptic, which had allowed them to miss both asteroid belts. Islands of Space The stars at the pole of the ecliptic will, of course, show their circles turned fairly towards us, and we shall see that they pursue circular paths. The Story of the Heavens Its longitude or place in the ecliptic, reckoned from the first point of Aries, according to the natural order of the signs. 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. We're to blast off later to-night and take a course through the asteroid belt, traveling on the plane of the ecliptic. On the Trail of the Space Pirates We are now well south the ecliptic, and are traveling at considerably more than full Martian acceleration. Spacehounds of IPC It is one of the two crossing places of the equinoctial, or equator, of the heavens, and the ecliptic, or sun's path. A Field Book of the Stars Finally, when we observe stars actually moving in the ecliptic, the circles they follow would be seen edgewise, and thus the stars would have merely the linear movement which they are seen to possess. The Story of the Heavens The difference between the heliocentric longitudes of the earth and a planet or comet, the latter being reduced to the ecliptic. 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. Sometimes it goes through the asteroid belt on the plane of the ecliptic and sometimes it goes over. On the Trail of the Space Pirates Now, with the observatories and check-stations out in space, fairly light armor is sufficient, as we route ourselves well away from the ecliptic and so miss all the heavy stuff. Spacehounds of IPC The ecliptic passes a little south of a point midway between the two horns, where a scattered and broken stream of minute stars can be seen. A Field Book of the Stars It can further be demonstrated that these ellipses are really circles parallel to the ecliptic; so that we might hastily assume that annual parallax was the cause of the phenomenon discovered by Bradley. The Story of the Heavens The commencement of this sign, called the first point of Aries, is the origin from which the right ascensions of the heavenly bodies are reckoned upon the equator, and their longitudes upon the ecliptic. 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 course that the sun took on the ecliptic was determined, and the ecliptic itself served as the guide for determining the position and movements of the stars. The Religion of Babylonia and Assyria You must stay further away from the plane of the ecliptic. Spacehounds of IPC Where the ecliptic crosses the solstitial colure is the spot where the sun appears to be when it is farthest north of the equator, June 21st. A Field Book of the Stars As the earth pursues its annual course around the sun, its movement at any moment may be regarded as directed towards a certain point of the ecliptic. The Story of the Heavens The duration of the earth's revolution round the sun, or of the apparent revolution of the sun in the ecliptic. 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 position of Nibir, or Jupiter, whose course keeps closer to the ecliptic than that of any other planet, served as an important guide in calendrical calculations. The Religion of Babylonia and Assyria Besides its annual revolution about the sun in the ecliptic, the earth turns round also on its own axis in 24 hours. A Museum for Young Gentlemen and Ladies Or, a Private Tutor for Little Masters and Misses It is one of the stars from which longitude is reckoned, lies almost exactly on the ecliptic, and is visible for eight months in the year. A Field Book of the Stars In the first place it was known that the orbit of this body, like the orbit of every other great planet, was inclined at a very small angle to the ecliptic. The Story of the Heavens The point of the ecliptic which is at the greatest altitude above the horizon. 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 division of this ecliptic into certain sections, determined by the constellations within the belt of the ecliptic, was the next step. The Religion of Babylonia and Assyria I think I see something bearing about seventy degrees to my left and up about twenty on the ecliptic! Danger in Deep Space Briefly his task was to calculate the extent of the change in the obliquity of the ecliptic since the building of Stonehenge. Stonehenge Today and Yesterday But there is another difficulty in the case of Ceres, inasmuch as the ring on the ecliptic is very narrow in comparison with the other dimensions of the problem. The Story of the Heavens An arc of a circle of longitude between the centre of that object and the ecliptic, and is north or south according to its position. 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. It seems as if the sun made an annual journey around the ecliptic. The Destiny of the Soul A Critical History of the Doctrine of a Future Life "Change course three degrees starboard, one degree down on ecliptic plane," ordered Strong calmly. The Revolt on Venus This is supposing the ecliptic the central plane of the vortex. Outlines of a Mechanical Theory of Storms Containing the True Law of Lunar Influence This is called the ecliptic, and the constellations through which it passes form a belt around the heavens known as the zodiac. The Story of the Heavens An astronomical term, denoting the distance of a body from the sun or earth projected upon the ecliptic. 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. "Three degrees up on the plane of the ecliptic and five degrees starboard!" The Space Pioneers "Two bandits at nine o'clock on level plane of ecliptic!" came the warning from the radar bridge. The Revolt on Venus But, this will only be correct for the same plane or for equal distances above the ecliptic plane, considering this last as approximately the central plane of the vortex. Outlines of a Mechanical Theory of Storms Containing the True Law of Lunar Influence It hence follows that Uranus is at all times only to be met with along the ecliptic, and it is possible to calculate where the planet has been in each year. The Story of the Heavens A slow approximation of the planes of the ecliptic and the equator, at the present rate of 0·485″ annually. 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. "Give it the same thing on the right and the down-plane of the ecliptic!" Sabotage in Space "The pole of the earth will coincide with the pole of the ecliptic," continued the astronomer, "an universal spring will be produced, and earth become a paradise." The Last Man But if the zodial light be the denser part of that medium, which astronomers now generally recognize as a resisting medium, how happens it that it should be confined to the plane of the ecliptic? Outlines of a Mechanical Theory of Storms Containing the True Law of Lunar Influence It was thus seen that in 1690 the planet was situated in that part of the ecliptic where Flamsteed was at the same date making his observations. The Story of the Heavens 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. Distance twenty miles, fifteen degrees up on the plane of the ecliptic. Sabotage in Space This attraction would have even sufficed to cause the disappearance of a slight want of coincidence in the intersections of the equator and orbit of the moon with the plane of the ecliptic. Biographies of Distinguished Scientific Men This would seem to vitiate our theory; for we cannot suppose that there are two central planes in the vortex intersecting the ecliptic in longitude 320° and 50°. Outlines of a Mechanical Theory of Storms Containing the True Law of Lunar Influence Now it is necessary first to know the position of the ecliptic with reference to the celestial equator. Half-hours with the Telescope Being a Popular Guide to the Use of the Telescope as a Means of Amusement and Instruction. 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. And he's on the same plane of the ecliptic. Sabotage in Space Limits of the obliquity of the ecliptic modified by the action of the sun and moon upon the terrestrial spheroid.—The ecliptic will not continue indefinitely to approach the equator. Biographies of Distinguished Scientific Men Birt, at the observatory of the British Association, it would appear that the brightest portion of the zodial light is always north of the ecliptic. Outlines of a Mechanical Theory of Storms Containing the True Law of Lunar Influence Each year the meeting-place of the imaginary lines of the ecliptic and equator is moving westward at the rate of about fifty seconds. Myths of Babylonia and Assyria The angle which the path of a comet or planet makes with the plane of the ecliptic. 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. For example: It is an appearance that the sun is borne around the earth daily, and follows yearly the path of the ecliptic. Angelic Wisdom Concerning the Divine Love and the Divine Wisdom The effect is modified in a small degree by the variation of the plane of the ecliptic, which tends to produce a progression of the equinoxes. Biographies of Distinguished Scientific Men On the longitude of the ascending node of the lunar orbit on the ecliptic. 5th. Outlines of a Mechanical Theory of Storms Containing the True Law of Lunar Influence This peculiarity is sometimes in the eccentricity of their orbits, sometimes in the manner in which their orbits are tilted to the general plane of the ecliptic, in which all the other planets move. The Birth-Time of the World and Other Scientific Essays The obliquity of the ecliptic, unaffected with nutation. 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. For the earth revolves daily round its axis, and has a yearly motion following the ecliptic, which gives the appearance that heat and light do not make one. Angelic Wisdom Concerning the Divine Love and the Divine Wisdom The position of the plane for the year 1750 has been calculated by referring it to the ecliptic of that year. Biographies of Distinguished Scientific Men The surface of the water will be the plane of the orbit, and the water that reaches out to the shore, where the stars would be set, will be the plane of the ecliptic. Recreations in Astronomy With Directions for Practical Experiments and Telescopic Work They would describe orbits making the same various angles with the ecliptic as do the asteroids; and we may be sure they would be of the same varying dimensions. The Birth-Time of the World and Other Scientific Essays The two points of intersection of the ecliptic and the equator; so called, because on the sun's arrival at either of them, the night is everywhere equal in length to the day. 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. Those planets that have the most elongated elliptic orbits, as Juno, Pallas, and Mercury, have also, although not to the same degree their orbits most strongly inclined toward the ecliptic. COSMOS: A Sketch of the Physical Description of the Universe, Vol. 1 Laplace determined the secular displacement of the plane of the earth's orbit due to each of the planets, and in this way ascertained the whole effect of perturbation upon the obliquity of the ecliptic. Biographies of Distinguished Scientific Men Some are never seen far from the sun, and others in all parts of the ecliptic. Recreations in Astronomy With Directions for Practical Experiments and Telescopic Work As regards the tilt of their orbits, some are actually as much as 34 degrees inclined to the ecliptic, so that in fact they are seen from the Earth among our polar constellations. The Birth-Time of the World and Other Scientific Essays The anastrous signs, or twelve portions of the ecliptic which the signs anciently occupied, but have since deserted by the precession of the equinoxes. 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. To realms beyond Yon highway of the world my fancy flies, When by her tall and triple mast we know Some noble voyager that has to woo The trade-winds, and to stem the ecliptic surge. The Mirror of Literature, Amusement, and Instruction Volume 17, No. 493, June 11, 1831 Finally, the inclination of the equator and the ecliptic will attain a certain maximum value, and then the obliquity will again diminish. Biographies of Distinguished Scientific Men The ecliptic passes between Aldebaran and the Pleiades. Recreations in Astronomy With Directions for Practical Experiments and Telescopic Work According to the Ptolemaic system, the sun moves from east to west through the ecliptic, and therefore the standing still of the sun would shorten and not lengthen the day. The World's Greatest Books — Volume 13 — Religion and Philosophy He found the distance between the tropics less than 53° 6', and greater than 52° 96', which gives a mean of 23° 51' for the obliquity of the ecliptic. A General History and Collection of Voyages and Travels - Volume 18 Historical Sketch of the Progress of Discovery, Navigation, and Commerce, from the Earliest Records to the Beginning of the Nineteenth Century, By William Stevenson I reply: "A solar eclipse occurs when the moon, moving in the plane of the ecliptic, crosses the line joining the centres of the sun and the earth." The Schoolmaster I am not like that pessimist philosopher who assumed her malignity from the fact of the obliquity of the ecliptic; but the truth is, Nature is a pirate. Some Private Views He wrote of Saturn, "It is girdled by a thin plain ring, nowhere touching, inclined to the ecliptic." Recreations in Astronomy With Directions for Practical Experiments and Telescopic Work Some maintain that the Earth is stationary, but Philolaus the Pythagorean says that it revolves in a circle about the fire of the ecliptic, like the sun and moon. Prefaces and Prologues to Famous Books with Introductions, Notes and Illustrations A Brother of the world, his song Sounded like a tempest strong Which tore from oaks their branches broad, And stars from the ecliptic road. Poems Household Edition 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 There is a remarkable peculiarity attached to their orbits, which are nearly perpendicular to the plane of the ecliptic, and they revolve in them in a direction contrary to the order of the signs. The Mirror of Literature, Amusement, and Instruction Volume 10, No. 262, July 7, 1827 Inclination of an orbit, the angle between its plane and the plane of the ecliptic. Recreations in Astronomy With Directions for Practical Experiments and Telescopic Work They divided the year into twelve months, and arrived at the signs of the ecliptic or zodiac. Outline of Universal History He determined the plane of the moon’s orbit and its inclination to the ecliptic. History of Astronomy They were devoted to the science of the stars, and determined the equinoctial and solstitial points, divided the ecliptic into twelve parts and the day into hours. Handbook of Universal Literature From the Best and Latest Authorities So far as practical results go, it accounts for the warmer climate and the decreased inclination to the plane of the ecliptic; or, rather, the decreased--” “Please, please, don't!” she begged. Darkness and Dawn Latitude, the angular distance of a heavenly body from the ecliptic. Recreations in Astronomy With Directions for Practical Experiments and Telescopic Work I think it would be true to say it was Linnæus who set the world on its present twist of thinking, and levered our mental globe a little more perpendicular to the ecliptic. Field and Hedgerow Being the Last Essays of Richard Jefferies The motion of this plane round the pole of the ecliptic once in eighteen years complicated the problem. History of Astronomy The first thing that occurred to Leverrier, in looking for the planet, was this,—he need not look out of the plane of the ecliptic. American Scenes, and Christian Slavery A Recent Tour of Four Thousand Miles in the United States 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. Ancient and Modern Physics Solstices, those points of the ecliptic which are most distant from the equator. Recreations in Astronomy With Directions for Practical Experiments and Telescopic Work I investigated from my observations the place of equinox and the obliquity of the ecliptic. Autobiography of Sir George Biddell Airy All of the satellites of Uranus have retrograde motion, and their orbits are inclined about 80° to the ecliptic. History of Astronomy Inside the latter is a meridian circle, at right angles to which is a graduated colure; then the equator, apparently a double ring, and the ecliptic; also two diametric bars. The Travels of Marco Polo — Volume 1 He determined," says Delambre, "the position of the stars by right ascensions and declinations, and was acquainted with the obliquity of the ecliptic. Beacon Lights of History, Volume 03 Ancient Achievements Zodiac, a belt 18° wide encircling the heavens, the ecliptic being the middle. Recreations in Astronomy With Directions for Practical Experiments and Telescopic Work For the ecliptic polar distance, five columns are added in groups, formed in seven different ways, each different way having on the average about nine hundred groups. Autobiography of Sir George Biddell Airy In 1787 Herschel discovered two satellites, both revolving in nearly the same plane, inclined 80° to the ecliptic, and the motion of both was retrograde. History of Astronomy Hipparchus framed a catalogue of the stars, and determined their places with reference to the ecliptic, by their latitudes and longitudes. The Old Roman World, : the Grandeur and Failure of Its Civilization. Hipparchus also framed a catalogue of the stars, and determined their places with reference to the ecliptic by their latitudes and longitudes. Beacon Lights of History, Volume 03 Ancient Achievements Node, the point in which an orbit intersects the ecliptic, or other plane of reference; ascending, descending, line of, 107. Recreations in Astronomy With Directions for Practical Experiments and Telescopic Work Does the periodical recurrence of this great phenomenon depend upon the state of the atmosphere? or upon something which the atmosphere receives from without, while the earth advances in the ecliptic? Personal Narrative of Travels to the Equinoctial Regions of America, During the Year 1799-1804 — Volume 1 Its orbit was found to be inclined over 10° to the ecliptic, and its diameter was only 161 miles. History of Astronomy They knew the obliquity of the ecliptic, and determined the place of the sun's apogee as well as its mean motion. The Old Roman World, : the Grandeur and Failure of Its Civilization. Some have maintained that the obelisks which the Egyptians erected served the purpose of gnomons for determining the obliquity of the ecliptic, the altitude of the pole, and the length of the tropical year. Beacon Lights of History, Volume 03 Ancient Achievements The point where the orbit of the moon penetrates the plane of the ecliptic is called a node. Recreations in Astronomy With Directions for Practical Experiments and Telescopic Work Belt, on the other hand, held that the cold was due to an increase in the obliquity of the ecliptic. The Naturalist in Nicaragua He had already proved the regression of the nodes of a satellite moving in an orbit inclined to the ecliptic. History of Astronomy Pythagoras, born 580 B.C., taught the obliquity of the ecliptic, probably learned in Egypt, and the identity of the morning and evening stars. The Old Roman World, : the Grandeur and Failure of Its Civilization. Pythagoras taught the obliquity of the ecliptic, probably learned in Egypt, and the identity of the morning and evening stars. Beacon Lights of History, Volume 03 Ancient Achievements H. L. N., greatest heliocentric latitude north, i.e., greatest distance north of the ecliptic, as seen from the sun. Recreations in Astronomy With Directions for Practical Experiments and Telescopic Work The greatest of astronomers, rather than seem ostentatious or unseasonably learned, will stoop to the popular phrase of the sun's rising, or the sun's motion in the ecliptic. Theological Essays and Other Papers — Volume 1 Gauss found its orbit to be inclined 35° to the ecliptic, and to cut the orbit of Ceres; whence Olbers considered that these might be fragments of a broken-up planet. History of Astronomy Some have maintained that the obelisks which they erected served the purpose of gnomons, for determining the obliquity of the ecliptic, the altitude of the pole, and the length of the tropical year. The Old Roman World, : the Grandeur and Failure of Its Civilization. The Chinese also determined the obliquity of the ecliptic eleven hundred years before our era. Beacon Lights of History, Volume 03 Ancient Achievements The orbits of all the planets do not lie in the same plane, but are differently inclined to the plane of the ecliptic, or the plane of the earth's orbit. Recreations in Astronomy With Directions for Practical Experiments and Telescopic Work "Look"—showing her the constellation Leo, on the ecliptic, and therefore visible to both the northern and southern hemispheres— "do you recognise that?" The Blind Spot It is true, he noticed, that the intervals varied by a year and a-half, and the inclination of the orbit to the ecliptic diminished with successive apparitions. History of Astronomy 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. The Old Roman World, : the Grandeur and Failure of Its Civilization. Aristarchus also, according to Plutarch, explained the apparent annual motion of the sun in the ecliptic by supposing the orbit of the earth to be inclined to its axis. Beacon Lights of History, Volume 03 Ancient Achievements Her eyes were attracted by the brightness of the planet Jupiter, as he rode in the ecliptic opposite, beaming down upon her as if desirous of notice. Two on a Tower He had investigated the obliquity of the ecliptic with extreme care, so far as the circumstances of astronomical observation would at that time permit. Great Astronomers This convinced him that the object was a comet, and he was not surprised to find on succeeding nights that the position was changed, the motion being in the ecliptic. History of Astronomy He determined," says Delambre, "the position of the stars by right ascensions and declinations; he was acquainted with the obliquity of the ecliptic. The Old Roman World, : the Grandeur and Failure of Its Civilization. The ecliptic had inclined itself beyond recovery till life was as thin as the elm trees. The Education of Henry Adams This, on their system, signified a submergence of the whole universe in water, and the Deluge myth would symbolize the safe passage of the vernal Sun-god through that part of the ecliptic. Legends of Babylon and Egypt in relation to Hebrew tradition This zone extends some way on either side of that line called the ecliptic in which the earth pursues its journey around the sun. Great Astronomers It is due to a steady revolution of the earth’s pole round the pole of the ecliptic once in 26,000 years in the opposite direction to the planetary revolutions. History of Astronomy These aforetime wanderers have adapted themselves wonderfully to planetary customs, for all of them revolve in the same direction with the planets, and in planes not wide of the ecliptic. A History of Science — Volume 3 Nowhere had the new forces so vigorously corrected the errors of the old, or so effectively redressed the balance of the ecliptic. The Education of Henry Adams One such interpretation of the Deluge narrative in Babylonia, particularly favoured by recent German writers, would regard it as reflecting the passage of the Sun through a portion of the ecliptic. Legends of Babylon and Egypt in relation to Hebrew tradition It was already known, as we have just pointed out, that the planet must lie somewhere on the ecliptic. Great Astronomers Democritus further supposed that the inclination of the flat earth to the ecliptic was due to the greater weight of the southern parts owing to the exuberant vegetation. History of Astronomy Tycho proved also that the angle of inclination of the moon's orbit to the ecliptic is subject to slight variation. A History of Science — Volume 2 The plane of the ecliptic must therefore be conceived as slowly revolving in such a way as gradually to circumnavigate the heavens. A History of Science — Volume 1 At present the earth's axis--that is, the line passing through its centre and the two poles--is inclined to the ecliptic about twenty-three and a half degrees. A journey in other worlds A romance of the future The French mathematician had now further indicated the spot on the ecliptic at which, according to his calculations, the planet must actually be found. Great Astronomers In his sixth book he discusses the inclination of the planetary orbits to the ecliptic. History of Astronomy 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 The actual size of the earth and the angle of its axis with the ecliptic have been measured with approximate accuracy. A History of Science — Volume 1 Then the wise men said: "Oh, pshaw! anyhow, the variation of the intersection of the equator and the ecliptic proves it." Whirligigs There is no distinction between the equator and the ecliptic. The Republic Therefore the axis of the equatorial belt of the earth must revolve round the pole of the ecliptic. History of Astronomy ORION, the hunter.—A constellation of the southern hemisphere with respect to the ecliptic, but half southern and half northern with respect to the equinoctial. The Ruins, or, Meditation on the Revolutions of Empires and the Law of Nature The sun had already reached the eastern horizon, and just as though it were crossing the ecliptic under the tropics, it sank like a cannon ball into the sea. Off on a Comet! a Journey through Planetary Space By these he had calculated the obliquity of the ecliptic, closely enough to serve for a thousand years after. Alexandria and Her Schools; four lectures delivered at the Philosophical Institution, Edinburgh He uses those of Ibn-Junis in his discussion of the obliquity of the ecliptic, and also in the case of the problems of the greater inequalities of Jupiter and Saturn. History of the Conflict Between Religion and Science He measured the obliquity of the ecliptic, and agreed with Eratosthenes. History of Astronomy Thus, the constellation Aries is now in that part of the ecliptic called Taurus, and the stars of Taurus are in Gemini, those of Gemini in Cancer, and so on throughout the ecliptic. The Ruins, or, Meditation on the Revolutions of Empires and the Law of Nature The inclination of the plane of the cometary orbit to the plane of the ecliptic, an angle which is generally considerable, but in this case the planes were proved to coincide. Off on a Comet! a Journey through Planetary Space By this third motion the earth, he held, made a revolution on itself and on the poles of the ecliptic once a year ... History of Astronomy It was traveling now at about the same speed as the earth, which traverses the ecliptic at a rate of 21,000,000 leagues a month, or 28,800 leagues an hour. Off on a Comet! a Journey through Planetary Space The earth’s axis rotates about the pole of the ecliptic, making one revolution and a twenty-six thousandth part of a revolution in the sidereal year, in the opposite direction to its orbital motion. History of Astronomy |
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