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Topic: Node astronomy

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	Lunar node - Wikipedia, the free encyclopedia
		The lunar nodes are the orbital nodes of the Moon, that is, the points where the orbit of the Moon crosses the ecliptic (which is the apparent path of the Sun across the heavens against the background stars).
		The lunar nodes precess rather quickly around the ecliptic, completing a revolution (called a draconitic or nodical period, the period of nutation) in 6793.5 days or 18.5996 years (please beware that this is not the saros eclipse cycle).
		Since the ascending node is the point of intersection between the ecliptic and the plane of the lunar orbit where the Moon is ascending from the South to the North, it is sometimes called the North node.
	en.wikipedia.org /wiki/Lunar_node (656 words)

	AllRefer.com - node (Astronomy, General) - Encyclopedia
		The lunar nodes are the points where the moon's line of nodes, when extended, strike the celestial sphere.
		The lunar nodes regress (move westward along the ecliptic) due to perturbations from the other bodies in the solar system, e.g., the sun and planets.
		The ascending node, when the sun appears to cross the celestial equator from south to north, is the vernal equinox; the descending node is the autumnal equinox.
	reference.allrefer.com /encyclopedia/N/node.html (274 words)

	Node
		In physics, a node is a spatial locus along a standing wave where the wave has zero amplitude.
		In astronomy, a node is one of two points where a body's orbit crosses the ecliptic, called the ascending node (when the body is moving northward) and descending node (when the body is moving southward).
		The nodes gradually shift westard because of the gravitational pull of the Sun upon the Moon.
	www.ebroadcast.com.au /lookup/encyclopedia/no/Node.html (173 words)

	Orbit (astronomy and physics) - MSN Encarta
		The three orbital elements that describe an orbit's orientation are the inclination (i), the longitude of the ascending node (Ω), and the argument of the periapsis (ω).
		The longitude of the ascending node is the angle in the reference plane between the equinox and the ascending node.
		The argument of the periapsis measures the angular displacement in the plane of the orbit between the ascending node and the line that passes through the center of the orbit (C) and the periapsis (P).
	encarta.msn.com /encyclopedia_761556131/Orbit_(astronomy_and_physics).html (941 words)

	Node - LoveToKnow 1911
		In the case of the heavenly bodies this plane is commonly that of the ecliptic, but, in special cases, the plane through the origin parallel to the earth's equator or the plane of a planet's orbit is used.
		The ascending node is that at which the body moves from the south or negative towards the north or positive side of the plane.
		The moon's nodes are the points in which its path intercepts the plane of the ecliptic.
	www.1911encyclopedia.org /Node (150 words)

	Cosmos: The SAO Encyclopedia: Ascending Node (Site not responding. Last check: 2007-10-30)
		The ascending node is usually quoted as the angular position at which a celestial body passes from the southern side of a reference plane to the northern side, hence 'ascending'.
		The ascending node is indicated by the yellow circle in the right-hand column.
		The descending node is located 180 degrees (half-way) further around the orbit.
	cosmos.swin.edu.au /entries/ascendingnode/ascendingnode.html (306 words)

	Cycles Research Institute - Astronomy
		Astronomy is the most ancient science, no doubt studied by people to keep track of the seasons so that the right time was known for hunting and planting and other activities.
		Other areas of cycles in astronomy are variable stars, binary stars, pulsars, galactic cores, solar oscillations and perhaps the oscillation of the entire universe.
		It is not possible, when considering astronomy from a cyclic point of view to not consider its relationship to astrology.
	www.cyclesresearchinstitute.org /astronomy.html (1094 words)

	Category:Astronomy - Wikipedia, the free encyclopedia
		Astronomy is a science involving the observation and explanation of events occurring outside Earth and its atmosphere.
		It includes the study of the origin, evolution, and physical and chemical properties of objects that can be observed in the sky, space, and in the whole universe.
		The main article for this category is Astronomy.
	en.wikipedia.org /wiki/Category:Astronomy (220 words)

	A node is a basic unit used to build data structure...
		In astronomy astronomy, a "node" is one of two points where a body's orbit orbit crosses the ecliptic ecliptic, called the "ascending node" (when the body is moving northward) and "descending node" (when the body is moving southward).
		The lunar node lunar nodes are subject to lunar precession lunar precession, this is the gradually shift westard because of the gravitational pull gravitational pull of the Sun Sun upon the Moon Moon.
		In botany botany, a "node" is the place on a stem stem where a leaf is attached.
	www.biodatabase.de /Node (311 words)

	Astronomy
		The position of a periodical comet is calculated from "Comets" submenu of "Astronomy" menu.
		A planet ascending node and descending one dates are calculated from "Crossing nodes" submenu of "Astronomy" menu.
		The phase and the age of the Moon at a given date are calculated from " Moon phases and ages" submenu of "Astronomy" menu.
	www.angelfire.com /sc/jstroberg/astronom.html (664 words)

	fUSION Anomaly. Nodes (Site not responding. Last check: 2007-10-30)
		Some authors make a distinction between node and element, with an element being a given data type and a node comprising one or more elements as well as any supporting data structures (such as pointers).
		In the grand network we are now assembling, the size of the nodes is collapsing while the quantity and quality of the connections are exploding.
		The nodes around us—the nodes that we are—are not passive switches, but grow in strength and insight through their range of materials, the nature and novelty of their connections and mutual exchanges.
	fusionanomaly.net /nodes.html (595 words)

	Other lists of astronomy resources (Site not responding. Last check: 2007-10-30)
		Astronomy and space links from around the world, broken down into an intuitive index for beginners, intermediate or advanced stargazers.
		It is intended as a comprehensive portal for academic faculty, graduate students in astronomy, and advanced undergrads conducting research.
		The astronomy section is updated on the first of each month and includes extensive features on constellations, brightest and nearest stars, advice on software and a handy astro dictionary.
	www.vilspa.esa.es /astroweb/yp_other_astronomy.html (1663 words)

	CTC: Astronomy
		The WSF is a free-flying research and development facility that is designed to use the pure vacuum of space to conduct scientific research in the development of new materials.
		Produced by the University of Arizona SEDS (Students for the Exploration and Development of Space).
		Astronomy Camp - Spend a week at the University of Arizona learning about astronomy from scientists during the day, and studying the sky at night.
	www.tc.cornell.edu /Services/Education/Gateways/Math_and_Science/astronomy.htm (1122 words)

	Highbeam Encyclopedia - Search Results for node (Site not responding. Last check: 2007-10-30)
		node NODE [node] in astronomy, point at which the orbit of a body crosses a reference plane.
		Since the moon's orbit has an inclination of 5°9â² to the plane of the ecliptic, there are two nodes in the
		The eyes of a potato tuber are nodes where sprouts appear, and they are arranged in the same spiral
	www.encyclopedia.com /articles/09307.html (468 words)

	node
		The lunar nodes are the points where the moon's line of nodes, when extended, strike the
		The ascending node, when the sun appears to cross the celestial equator from south to north, is the vernal
		; the descending node is the autumnal equinox.
	www.factmonster.com /ce6/sci/A0835793.html (237 words)

	[No title]
		A line or curve in a two-dimensional standing-wave system, such as a vibrating diaphragm, where some specified characteristic of the wave, such as velocity of pressure, does not oscillate.
		Tissue from the sinoatrial node, and the atrioventricular node and bundle and its branches, composed of a dense network of Purkinje fibers.
		One of two points at which the orbit of a planet, planetoid, or comet crosses the plane of the ecliptic.
	www.accessscience.com /Dictionary/N/N10/DictN10.html (2695 words)

	MOON - SUN GLOSSARY OF TERMS (Site not responding. Last check: 2007-10-30)
		In astronomy, these are two points (eg: equinoxes, lunar nodes, etc) where the orbit of a heavenly body cuts an astronomical plane or where two astronomical planes intersect.
		The north or ascending node is where the Moon passes from below to above the ecliptic (South to North).
		This is found in astronomy as the interval between the Saros cycle (223 synodic months) and Metonic cycle (235 synodic months).
	www.davidmcminn.com /pages/gloss.htm (1531 words)

	World-Wide Web Resources - Astronomy and Space (Site not responding. Last check: 2007-10-30)
		Astronomy Acknowledgement Index, provides references to personal acknowledgements from all papers published in the nine leading journals in astronomy.
		Astronomy Education in the United States, from the Astronomical Society of the Pacific.
		To request a purchase for the Astronomy collection in the Chemistry/Physics Library in the University of Kentucky Libraries, use this form.
	www.uky.edu /Subject/astronomy.html (1446 words)

	UCL Astrophysics Group: Home Page (Site not responding. Last check: 2007-10-30)
		The Astrophysics group at UCL forms part of the Physics and Astronomy Department.
		We are one of the largest Astrophysics groups in the UK and are comprised of about 20 academic staff, 15 post-doctoral fellows, 30 PhD students and 15 support staff.
		An overview of the group's research can be found in the most recent Departmental Annual Review.
	www.star.ucl.ac.uk (74 words)

	Astronomy Information Systems (Site not responding. Last check: 2007-10-30)
		AstroGrid is a project aimed at building a data-grid for UK astronomy, which will form the UK contribution to a global Virtual Observatory.
		The Imaging Node of the Planetary Data System is the curator of NASA's primary digital image collections from past, present, and future planetary missions.
		The node provides to the NASA planetary science community the digital image archives, necessary ancillary datasets, software tools, and technical expertise necessary to fully utilize the vast collection of digital planetary imagery.
	www.vilspa.esa.es /astroweb/yp_infosys.html (1581 words)

	Jeff MacQuarrie's Astronomy Resources Page
		Astronomy 123 - Cosmology and the Origin of Life - Lecture notes from University of Oregon astronomy course.
		Astronomy 161/162 - University of Tennessee - Course notes from University of Tennessee two-semester astronomy course.
		The X-ray Astronomy Branch is part of the E. Hulburt Center for Space Research and the Space Science Division at the Naval Research Laboratory in Washington, DC.
	members.aol.com /tchphysics/astrlin2.htm (4130 words)

	Astronomy Links (Site not responding. Last check: 2007-10-30)
		This brochure describes the ongoing research opportunities in astronomy and astrophysics afforded to students in the...
		The Board of Studies in Astronomy and Astrophysics (BSAA) facilitates the research of many faculty, post-doctoral, and graduate student researchers.
		Helen Ross (Stirling) The Moon Illusion: From Astronomy to Psychology.
	www.cdli.ca /~cwinter/astro.html (179 words)

	Planetary Astronomy
		The Orbital Mechanics are a network group specialising in space and astronomy education for all age profiles.
		This node is currently located in the Astronomy Department of the University of Maryland, College Park.
		This is a celebration of astronomy, organised by a committee of amateur and professional astronomers.
	simbad.u-strasbg.fr /astroweb/tmp/yp_planetary.html (2671 words)

	AstroImages.org Astronomy Resources Page
		Astronomy Digital Image Library - The purpose of the Astronomy Digital Image Library (ADIL) is to collect astronomical, research-quality images and make them available to the astronomical community and the general public.
		Astronomy Picture of the Day - Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer.
		Astronomy - ASTRONOMY Magazine is the world's largest English-language magazine for astronomy hobbyists.
	www.astroimages.org /astrlin2.html (3394 words)

	The Small Bodies Node
		The Planetary Data System (PDS) Small Bodies Node (SBN) is located in the Department of Astronomy of the University of Maryland, College Park.
		The Planetary Data System (PDS) is a distributed archive of solar system data prepared in a standard format for use primarily by astronomical observers and mission planners, as well as educators and students.
		The Small Bodies Node (SBN) specializes in data concerning asteroids, comets and interplanetary dust.
	pdssbn.astro.umd.edu (268 words)

	Astronomy Answers: From the Astronomical Dictionary (Site not responding. Last check: 2007-10-30)
		The description of the word you requested from the astronomical dictionary is given below.
		The nodes of the orbit of a celestial body are the two places where the orbit passes through the base plane of the coordinate system.
		The node at which the object goes through the base plane from south to north is called the ascending node, and the node at which the object goes from north to south through the base plane is called the descending node.
	www.astro.uu.nl /~strous/cgi-bin/glossary.cgi?l=en&o=node (91 words)

	Astronomy
		Nineteenth Century Astronomy Book Home Page is dedicated to the identification, research, and acquisition of 19th century astronomy books.
		Galactic Supernova Remnants by David A. Green of the Mullard Radio Astronomy Observatory, Cambridge, U.K. GalacticSky Charts by Mike C. Harvey displays sky charts for the current month for the Northern and Southern hemisphere for latitudes 10, 20, 30, 45, and 60.
		The society seeks to popularize astronomy, to increase the professionalism of astronomy in the Arab world, and to assemble Arab astronomers in Jordan and elsewhere in order to develop their astronomical hobby.
	www.pibburns.com /astro.htm (2440 words)

	perturbation
		However, the perturbations caused by the gravitational interaction of the planets among themselves change and complicate the curve of these orbits.
		Within the solar system, the existence and position of Neptune was predicted because of the deviations of Uranus from its computed path.
		node - node, in astronomy, point at which the orbit of a body crosses a reference plane.
	www.factmonster.com /ce6/sci/A0838535.html (332 words)

	Astronomy & Space
		The Planetary Rings Node is devoted to archiving and distributing scientific data sets relevant to planetary ring systems.
		The two major classes of ring data are images and occultation profiles, although a variety of additional data types (e.g.
		Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer.
	www.msnusers.com /AstronomySpace/theplanetsaturn.msnw (778 words)

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