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# Topic: Ecliptic

###### In the News (Wed 17 Jan 18)

 Ecliptic Illustration Multimedia Ecliptic featers the work of illustrator and multimedia artist Thomas Thü Hürlimann, well known for his contributions to the Swiss and German edition of Macworld and Computerworld Magazine. Through Ecliptic you can hire Thomas Thü Hürlimann to create art tailored to your specific needs. Those pages show some of the possible variations in style and technique that can be applied to fit the individual requirements of your projects. www.ecliptic.ch   (370 words)

 Ecliptic - Wikipedia, the free encyclopedia It should be distinguished from the invariable ecliptic plane which is the vector sum of the angular momenta of all planetary orbital planes, in which Jupiter is the main contributant. Ecliptic latitude, usually indicated with the letter β is measured +90° to the north or -90° to the south. The intersection line of the ecliptical plane and the orbital plane is called the nodal line, and the intersection points on the celestial sphere are the ascending node (where the planet crosses the ecliptic from south to north) and the diametrically opposite descending node. en.wikipedia.org /wiki/Ecliptic   (1313 words)

 Ecliptic longitude - Wikipedia, the free encyclopedia Ecliptic longitude (celestial longitude) is one of the co-ordinates which can be used to define the location of an astronomical object on the celestial sphere in ecliptic coordinates. The ecliptic is the path followed by the sun across the celestial sphere during the year. Ecliptic longitude is then the angular distance of the object eastwards along the ecliptic from this point. en.wikipedia.org /wiki/Ecliptic_longitude   (194 words)

 ECLIPTIC - LoveToKnow Article on ECLIPTIC 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. Owing to the action of the moon on the earth, as it performs its monthly revolution in an orbit slightly inclined to the ecliptic, the centre of the earth itself deviates from the plane of the ecliptic in a period equal to that of the nodal revolution of the moon. 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. www.1911encyclopedia.org /E/EC/ECLIPTIC.htm   (511 words)

 Orbits and the Ecliptic Plane   (Site not responding. Last check: 2007-10-19) The ecliptic plane is tilted 23.5° with respect to the plane of the celestial equator since the Earth's spin axis is tilted 23.5° with respect to its orbit around the sun. The points where the ecliptic crosses the equatorial plane of the celestial sphere are called equinoxes. The ecliptic plane is inclined at 23.5° with respect to the celestial equator because of the tilt of the Earth's rotation axis with respect to the plane of its orbit around the sun. hyperphysics.phy-astr.gsu.edu /hbase/eclip.html   (870 words)

 ECLIPTIC AND EQUATOR The ecliptic is the year-long path of the Sun against the background of fixed stars. The celestial equator is a projection of the earth's equator, and is inclined to the path of the sun (the ecliptic) by 23.5 degrees. Constellations containing portions of the ecliptic are zodiac constellations, and bright stars in zodiac constellations that don't appear on star charts are probably visiting planets. homepage.mac.com /kvmagruder/bcp/sphere/ecliptic.htm   (354 words)

 Ecliptic Guides   (Site not responding. Last check: 2007-10-19) Ecliptic guides are based on the ecliptic plane, which is the plane of the Earth's orbit around the Sun, and are measured by the ecliptic latitude and ecliptic longitude. The ecliptic latitude is measured from 0° at the ecliptic to 90° North and -90° South at the ecliptic poles. Displays the Ecliptic equator, a projection of the plane of the earth's orbit onto the celestial sphere. www.starrynightpro.com /help/mark/4custoa9.htm   (326 words)

 AllRefer.com - ecliptic (Astronomy, General) - Encyclopedia The two points at which the ecliptic crosses the celestial equator are the equinoxes. The obliquity of the ecliptic is the inclination of the plane of the ecliptic to the plane of the celestial equator, an angle of about 23 1/2 °. The constellations through which the ecliptic passes are the constellations of the zodiac. reference.allrefer.com /encyclopedia/E/ecliptic.html   (221 words)

 Ecliptic Launches a Success With RocketCam Ecliptic is expecting between \$4 million and \$8 million in sales for 2003. Ecliptic Enterprises emerged from the ruins of Blast Off, a short-lived effort to mount a commercial lunar lander mission. Although best known for the RocketCam, Ridenoure said Ecliptic’s biggest contract to date — a role as a subcontractor on the 2003 Mars Exploration Rover mission — was awarded to the data transport side of the company. www.space.com /spacenews/archive03/eclipticarch_020303.html   (1046 words)

 The Ecliptic The ecliptic is an imaginary Great Circle on the Celestial Sphere along which the Sun appears to move over the course of a year. The ecliptic is inclined from the Celestial Equator by 23.5 degrees. The two points where the ecliptic crosses the celestial equator are known as the Equinoxes. kstars.sourceforge.net /handbook/ai-ecliptic.html   (279 words)

 Matrix Astrology Software : Learn Astrology - Visual Astrology - Ecliptic Coordinate System The co-ordinates used are Celestial Latitude (the perpendicular distance of the object from the ecliptic in angular measure) and Celestial Longitude (the angular distance along the ecliptic between the plane through the object and the First Point of Aries). Ecliptic Sphere -- Also called the Zodiac Sphere, this is the sphere resulting from projecting the plane of the Earth's orbit and points (its poles) 90° north and south of that plane. Obliquity of the Ecliptic -- The 23 1/2° angle (23°27') that represents the inclination of the ecliptic to the celestial equator. thenewage.com /resources/vastrology/ecsys.asp?orig=/>Astrology+101

 The Path of the Sun, the Ecliptic   (Site not responding. Last check: 2007-10-19) Planets seen in the sky are always near the ecliptic, which means that their orbits are never too far from the plane of the ecliptic. The moon's orbit cuts the ecliptic at a shallow angle, around 5 degrees, which means that on the celestial sphere the Moon, too, follows a path through the zodiac. Since the Sun and Earth are in the plane of the ecliptic, the line is automatically in that plane too; if the moon is also on the same line, it must be in the plane of the ecliptic as well. www-istp.gsfc.nasa.gov /stargaze/Secliptc.htm   (1232 words)

 The Ecliptic; from Lundy, Isle of Avalon by Mystic Realms The Ecliptic is the path the sun follows across the sky. The points of intersection of the Ecliptic and the celestial equator are called the nodes or more commonly the equinoxes. Because the equator and the ecliptic rotate in opposite directions to each other the position of the equinoxes on the ecliptic moves about one degree every seventy years. www.lundyisleofavalon.co.uk /stars/ecliptic.htm   (489 words)

 SPACE.com -- Spacewatch Friday: Understanding the Ecliptic and the Zodiac Of the imaginary coordinate lines that astronomers and navigators use in mapping the sky, perhaps the most important one is the ecliptic, the apparent path the Sun appears to take through the sky as a result of the Earth's revolution around it. Usually the Moon and planets are not positioned exactly on the ecliptic (because they're not located exactly in the same orbital plane as Earth), but lie within several degrees of it and form a sort of narrow strip encompassing the entire sky which we call the Zodiac. The ecliptic also passes through the constellation of Ophiuchus, which is not included among the so-called signs of the Zodiac. www.space.com /spacewatch/ecliptic_030228.html   (1050 words)

 Terms and Definitions A half of the celestial sphere that is divided into two halves by either the horizon, the celestial equator, or the ecliptic. The inclination of a planet's orbit is the angle between the plane of its orbit and the ecliptic. The inclination of a moon's orbit is the angle between the plane of its orbit and the plane of its primary's equator. www.solarviews.com /eng/terms.htm   (4644 words)

 The Ecliptic The ecliptic is the path of the sun in the sky which is marked by the constellations of fixed stars. We don't know exactly how fixed constellations on the ecliptic were seen by the Maya, but we have some idea of the order in some parts of the sky. It has also been found that Gemini appeared to the Maya as a pig or peccary, (a nocturnal animal in the pig family.) Some other constellations on the ecliptic are identified as a jaguar, at least one serpent, a bat, a turtle, a xoc monster--that is, shark, or a sea monster. www.michielb.nl /maya/ecliptic.html   (203 words)

 The Ecliptic The fact that the ecliptic longitudes of fixed stars that are very removed from the ecliptic are astrologically "alive" is, I think, one of several independent indicators that there is a great deal more to the ecliptic, as a modulus, than we actually tend to grant, or even imagine. That's the corollary of the axiom of ecliptic modularity. The ecliptic is a great deal more than an arbitrary modulus, and thus its properties are way beyond the properties of an arbitrary referential modulus for quantifying a positional coordinate. www.winshop.com.au /annew/Gonzo.htm   (495 words)

 Celestial Sphere   (Site not responding. Last check: 2007-10-19) Since the ecliptic is tilted 23.5 degrees with respect to the celestial equator, the Sun's maximum angular distance from the celestial equator is 23.5 degrees. This precession is caused by the Sun and Moon gravitationally pulling on the Earth's equatorial bulge, to reduce the tilt of the Earth's axis with respect to the ecliptic and lunar orbit plane. Ecliptic tilted by 23.5° with respect to the celestial equator. www.star.ucl.ac.uk /~idh/STROBEL/nakedeye/nakedeya.htm   (3655 words)

 Search Results for ecliptic - Encyclopædia Britannica Celestial longitude and latitude are defined with respect to the ecliptic and ecliptic poles. Celestial longitude is measured eastward from the ascending intersection of the ecliptic with the... motion of the equinoxes along the ecliptic (the plane of the Earth's orbit) caused by the cyclic precession of the Earth's axis of rotation. www.britannica.com /search?query=ecliptic&submit=Find&source=MWTEXT   (418 words)

 SSC:FLS: Ecliptic Component The ecliptic plane component (EPC) of the FLS concentrated on two 0.13 square deg fields at a solar elongation of 115 degrees and ecliptic latitudes (beta) of 0 degrees and +5 degrees. Two rectangular fields of approximately 10' x 0.8 degree (0.13 square degrees) will be observed at 0 and +5° ecliptic latitude, to probe scale height drop-off in the asteroid population. This field shape was chosen as a compromise between instrument observing mode efficiency, which favors long scan strips, and the desire for greater spread parallel to the ecliptic plane to minimize loss of asteroids off the detection area. ssc.spitzer.caltech.edu /fls/eclip   (1301 words)

 MSN Encarta - Search Results - Ecliptic Ecliptic, in astronomy, the apparent great-circle annual path of the Sun in the celestial sphere, as seen from Earth. described, early study of the obliquity of the ecliptic The equatorial coordinate system is a coordinate system fixed on the sky. ca.encarta.msn.com /Ecliptic.html   (83 words)

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