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Topic: IAU (disambiguation)

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	terrestrial time - Article and Reference from OnPedia.com
		TT was introduced by the International Astronomical Union (IAU) in 1991 as the coordinate time scale consistent with the theory of relativity for an observer on the surface of the Earth.
		TDT was defined in 1976 by the IAU to be the counterpart of Barycentric Dynamical Time (TDB) as measured by clocks ticking SI seconds on the surface of the earth.
		Subsequently the IAU decided that the name of TDT was a misnomer because it did not correspond directly to anything dynamical in the theories of motion for bodies in the solar system.
	www.onpedia.com /encyclopedia/Terrestrial-Time (349 words)

	Planet - Wikipedia, the free encyclopedia
		Several of the largest of these have challenged the planetary status quo, as they are both spherical and larger than the bodies in the Mars-Jupiter asteroid belt, and are similar in size, orbit and composition to Pluto.
		As of January 2006 it has not yet been accepted as a planet, but the IAU is expected to announce a definition of a planet soon, which will likely either see 2003 UB become a planet, or have Pluto stripped of its status.
		To the IAU, the question of whether an object in orbit around a brown dwarf is a "planet" or a "moon" was simply not relevant, as it does not use the term "moon," only "satellite" and as yet has no official definition for "planet."
	en.wikipedia.org /wiki/Planets (2708 words)

	Planet (Site not responding. Last check: 2007-10-10)
		Asteroids can be named after anybody or anything at the discretion of their discoverers, subject to approval by the IAU's nomenclature panel.
		No interstellar planet is known to date, but their existence is considered a likely hypothesis based on computer simulations of the origin and evolution of planetary systems, which often include the ejection of bodies of significant mass.
		In 1999, the IAU set up a working group to develop a scientifically plausible recommendation, but as of August 2005 they had not reached a conclusion.
	www.donob.com /encyclopedia/Planet (2672 words)

	barycentric dynamical time - Article and Reference from OnPedia.com
		Barycentric Dynamical Time (TDB) was defined by the International Astronomical Union (IAU) in 1976 to be used as the relativistic replacement for the non-relativistic Ephemeris Time which had been used in the ephemerides starting in 1960.
		Furthermore, because the length of the TDB second is determined by clocks on earth (as opposed to the barycentric reference frame itself) it disagrees with the SI second that would be determined by a clock at rest in the frame.
		Despite IAU recommendations that TCB be used for all further calculations of solar system ephemerides, as of 2002 TDB and Ephemeris Time continue to be used, the latter by the producer of the important DE200 ephemeris and its successors at the Jet Propulsion Laboratory.
	www.onpedia.com /encyclopedia/Barycentric-Dynamical-Time (619 words)

	Astronomical unit - Wikipedia
		An astronomical unit (abbreviated AU) is a unit of distance, originally defined as the semimajor axis of the earth's orbit, which is the mean distance of the earth from the sun.
		For greater precision, the IAU in 1976 defined it as as the distance from the sun at which a particle of negligible mass in an unperturbed orbit would have an orbital period of 365.2568983 days (a Gaussian year).
		For the layman, the distance is approximately that of the Earth to the sun.
	nostalgia.wikipedia.org /wiki/Astronomical_unit (231 words)

	Constellation - Wikipedia
		The grouping of stars into contellations is essentially arbitrary, and different cultures have had different constellations, although a few of the more obvious ones tend to recur frequently, e.g.
		The International Astronomical Union (IAU) divides the sky into 88 official constellations with precise boundaries, so that every direction belongs to exactly one constellation.
		Data file of official IAU boundaries (Note that the boundaries are defined for equinox 1875.)
	nostalgia.wikipedia.org /wiki/Constellation (393 words)

	Terrestrial Time: Encyclopedia topic (Site not responding. Last check: 2007-10-10)
		TT was introduced by the International Astronomical Union (International Astronomical Union: the international astronomical union (iau) unites national astronomical societies from around...
		TDT was defined in 1976 by the IAU to be the counterpart of Barycentric Dynamical Time (Barycentric Dynamical Time: more facts about this subject) (TDB) as measured by clocks ticking SI seconds on the surface of the earth.
		Subsequently the IAU decided that the name of TDT was a misnomer because it did not correspond directly to anything dynamical in the theories of motion for bodies in the solar system (solar system: The sun with the celestial bodies that revolve around it in its gravitational field).
	www.absoluteastronomy.com /reference/terrestrial_time (436 words)

	IAU - Indopedia, the Indological knowledgebase
		IAU is a three-letter abbreviation that usually refers to the International Astronomical Union.
		This is a disambiguation page — a navigational aid which lists other pages that might otherwise share the same title.
		If an article link referred you here, you might want to go back and fix it to point directly to the intended page.
	www.indopedia.org /IAU.html (165 words)

	tt information (Site not responding. Last check: 2007-10-10)
		TTwas introduced by the InternationalAstronomical Union (IAU) in 1991 as the coordinate time scale consistent with the theory ofrelativity for an observer on the surface of the Earth.
		TDT was defined in 1976 by the IAU to be the counterpart of Barycentric Dynamical Time (TDB) as measured by clocks ticking SI seconds on the surface of theearth.
		Subsequently the IAU decided that the name of TDT was a misnomerbecause it did not correspond directly to anything dynamical in the theories of motion for bodies in the solar system.
	www.vsearchmedia.com /tt.html (395 words)

	Planet - Universipedia, the free encyclopedia (Site not responding. Last check: 2007-10-10)
		However, there is some pressure for Pluto to be reclassified as a Kuiper Belt object, especially in light of the discovery of 2003 UB This object, however, has not yet received a definitive classification from the IAU.
		However, the discovery in 2005 of 2003 UB (nicknamed Xena), with a size and mass larger than Pluto seems to have forced the issue.
		The discovery of a planet-sized satellite of a brown dwarf has blurred the distinction between "planet" and "moon." A brown dwarf, though a star in theory, in practice is often described as in between a planet and a star.
	www.pillnow.net /university/Library/Planet (2530 words)

	> Planet at abcworld.net (Site not responding. Last check: 2007-10-10)
		However, there is some pressure for Pluto to be reclassified as a Kuiper belt object, especially in light of the discovery of 2003 UB, which, however, has not yet been accepted by the IAU.
		The most significant of these are (in increasing distance from the Sun) Orcus, Ixion, 2002 UX Varuna, 2002 TX Quaoar, 2005 FY and Sedna.
		As of September 2005 it has not yet been accepted as a planet, but the IAU is expected to announce a definition of a planet by the end of the year, which will either see 2003 UB become a planet, or have Pluto stripped of its status.
	abcworld.net /Planet.html (2323 words)

	Zodiac: Encyclopedia topic (Site not responding. Last check: 2007-10-10)
		Ptolemy recognised 4 of them, which are today known as 36 Oph, 42 θ Oph, 44 Oph and 51 Oph, and he recognised that they were south of the path of the sun through the sky.
		Thus, Ophiuchus as a recognised zodiacal constellation predates the 1930 decision by the International Astronomical Union (International Astronomical Union: the international astronomical union (iau) unites national astronomical societies from around...
		This IAU decision is a common reason given by astrologer (astrologer: Someone who predicts the future by the positions of the planets and sun and moon) s for the inconsistency.
	www.absoluteastronomy.com /reference/zodiac (2102 words)

	Talk:List of craters on the Moon - TheBestLinks.com - Mars, IAU, List of Lunar craters, Far side (Moon), ...
		Due to conflicts with the names of some craters on Mars, in cases of conflict I'm putting in a 'Name (crater)' disambiguation page that redirects to the crater pages for the Moon and Mars.
		The disambiguation page then links to 'Name (Luna crater)', and so to does the list page.
		All crater entries now have the names as listed in the IAU nomenclature.
	www.thebestlinks.com /Talk__3A__List_of_craters_on_the_Moon.html (356 words)

	Planet - Unipedia
		Much like "continent," "planet" is a word without a precise definition, with history and culture playing as much of a role as geology and astrophysics (see Definition of planet).
		The IAU lists nine planets in our solar system, although many astronomers contest that figure, with some saying it should be lowered and others demanding it be raised.
		With the discovery since 1995 of over 150 planet-sized objects in orbit around other stars, the problem of defining a planet has become rather more acute.
	www.unipedia.info /Planet.html (1401 words)

	IAU - Unipedia
		This page concerning a three letter acronym is a disambiguation page — a navigational aid which lists other pages that might otherwise share the same title.
		Astronomical and biochemical origins and the search for life in the universe: Proceedings of the 5th International conference on bioastronomy, IAU colloquium no. 161, Capri, July 1-5, 1996
		Complementary Approaches to Double and Multiple Star Research: Iau Colloquium 135, Meeting Held at Pine Mountain, Georgia, 5-10 April 1992, V. 32 (Astronomical...
	www.unipedia.info /IAU.html (304 words)

	[No title] (Site not responding. Last check: 2007-10-10)
		The NPFC disambiguation is otherwise assumption-free, with the quality of the results depending on the quality of the measurements.
		The technique is fast, effective, and physically sound, so it may be instrumental in a routine, real-time, disambiguation of future space-borne solar vector magnetograms.
		Symposium no. 219, held 21-25 July, 2003 in Sydney, Australia, meeting abstract Publication Date: 00/2003 Origin: IAU Bibliographic Code: 2003IAUS..219E..18S Abstract We suggest that coronal loop heating is caused by dissipation of magnetic energy as new magnetic flux emerges from the photosphere.
	www.astro.uu.nl /~rutten/rrtex/bibfiles/ads/abs/georgoulis.txt (8759 words)

	IAI (Site not responding. Last check: 2007-10-10)
		This is a disambiguation page; that is, one that just points to other pages that might otherwise have the same name.
		But the amusing and varies against us the charge of running, as if he were singing a English.
		Any of the elder martyr was chiefly regarded as the enemy of Cæsar; at times, also, enmity that arises spontaneously in the worldly against the.
	www.factspider.com /ia/iai.html (253 words)

	Planet: (Site not responding. Last check: 2007-10-10)
		For other uses, see planet_%28disambiguation%29" title="planet (disambiguation)">planet (disambiguation).
		A planet is generally considered to be a relatively large mass of accreted matter in planetary_orbit" title="planetary orbit">orbit around a star that is not a star itself.
		As of January 2006 it has not yet been accepted as a planet, but the IAU is expected to announce a planet" title="Definition of planet">definition of a planet soon, which will likely either see 2003 UB become a planet, or have Pluto stripped of its status.
	winelib.com /wiki/Planet (2790 words)

	Constellation (Site not responding. Last check: 2007-10-10)
		The International Astronomical Union (IAU) divides the sky into 88 official constellations with precise boundaries, so that every direction or place in the sky belongs within one constellation.
		In the northern celestial hemisphere, these are mostly based upon the constellations of the ancient Greek tradition, passed down through the Middle Ages, and contains the signs of the zodiac.
		Strasbourg Astronomical Data Center Files on official IAU constellation boundaries (the older NASA ADC service does not function anymore)
	parkforest.info /?title=Constellation (945 words)

	Delphinus (Site not responding. Last check: 2007-10-10)
		Delphinus, being Latin for Dolphin, is a rather small (ranked 69th) northern constellation very close to the celestial equator.
		It was already included in Ptolemy's list of 48 constellations and also forms part of the modern list of 88 constellations approved by the IAU.
		It looks remarkably like a leaping dolphin and thus can easily be recognized in the sky.
	www.vdinosaurs.com /wiki/index.php?title=Delphinus (554 words)

	iqexpand.com (Site not responding. Last check: 2007-10-10)
		This page was last modified 06:40, 7 Feb 2005.
		ET was replaced with the two time scales Terrestrial Dynamical Time (TDT) and Barycentric Dynamical Time (TDB) by the International Astronomical Union (IAU) in 1976 â”TDT was renamed Terrestrial Time (TT...
		A time to put away your summer fly box and bring out the one with big bushy...
	terrestrial_time.iqexpand.com (662 words)

	Smith Corona (Site not responding. Last check: 2007-10-10)
		:''For other meanings, see corona (disambiguation)'' The corona is the luminous "atmosphere" of the Sun extending millions of kilometres into space, most easily seen during a total solar eclipse, but also observable in a coronagraph.
		This may have been due to an inadvertent naming mixup which has never been corrected http://www.ianridpath.com/constellations1.htm, but in any case the official IAU website continues to list "Corona Austrina" as the official name http://www.iau.org/IAU/Activities/nomenclature/const.html.
		In practice, the original name "Corona Australis" continues to be more widely used.
	www.awonky.com /pages2/81/smith-corona.html (1154 words)

	[No title]
		This is a disambiguation http://en.wikipedia.org/wiki/APA " Categories : Disambiguation
		It is promulgated by the American Psychological Association APA style is officially defined in The Publication Manual of the American Psychological Association).
		APC is an abbreviation of: A Perfect Circle, a rock band with frontman Maynard James Keenan American Plastics Council American Power Conversion Anaphase Promoting Complex Armoured personnel carrier Automatic performance control Automatic Passenger Counter Average Propensity to Consume Adenomatous polyposis coli gene colon cancer.
	www.en-cyclopedia.com /index1/ap (980 words)

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