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| planet | (n.) | In the traditional model of solar systems, a celestial body larger than an asteroid or comet, illuminated by light from a star, such as the sun, around which it revolves. |
| planet | (n.) | One of the seven celestial bodies, Mercury, Venus, the moon, the sun, Mars, Jupiter, and Saturn, visible to the naked eye and thought by ancient astronomers to revolve in the heavens about a fixed Earth and among fixed stars. |
| planet | (n.) | One of the seven revolving astrological celestial bodies that in conjunction with the stars are believed to influence human affairs and personalities. |
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The IAU draft definition of "planet" and "plutons" | Press Releases ... |
News Release - IAU0601: The IAU draft definition of "planet" and "plutons"
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The Final IAU Resolution on the definition of "planet" ready for ... |
News Release - IAU0602: The Final IAU Resolution on the definition of "planet" ready for voting ... Catherine Cesarsky (incoming IAU President, Member of the Planet Definition Committee)
From its beginnings denoting the "wandering stars" of the classical world, the definition of "planet" has been fraught with ambiguity. In its long life, the word has meant many different things, often simultaneously. Over the millennia, use of the term was never strict and its meaning...
en.wikipedia.org/wiki/Definition_of_planet
en.wikipedia.org/wiki/Definition_of_planet
The 2006 definition of "planet" by the International Astronomical Union (IAU) states that in the solar system a planet is a celestial body that: is in orbit around the Sun, has sufficient mass so that it assumes a hydrostatic equilibrium (nearly round) shape, and has "cleared the neighbourhood...
en.wikipedia.org/wiki/2006_definition_of_planet
en.wikipedia.org/wiki/2006_definition_of_planet
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SPACE.com -- Definition of 'Planet' Expected in September |
Definition of 'Planet' Expected in September By Robert Roy Britt Senior Science Writer posted: 08 June 2006 12:35 pm ET
www.space.com/scienceastronomy/060608_planet_definition...
www.space.com/scienceastronomy/060608_planet_definition.html
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355k - 51 sec @ 56k
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SPACE.com -- What is a Planet? Debate Forces New Definition |
The definition of a planet, meanwhile, is crumbling under the weight of discovery. ... Finding a textbook definition for the word "planet" is tricky. ...
www.space.com/science/solarsystem/planet_confusion_0011...
www.space.com/science/solarsystem/planet_confusion_001101-1.html
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PlanetsLTD: Discover heavenly bodies, bright stars and a mystery ... |
PlanetsLTD: Discover heavenly bodies, bright stars and a mystery planet. Ponder Vulcan’s existence and follow the debate about Planet X beyond Pluto. Purchase books, DVD, videos and much more.
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231k - 33 sec @ 56k
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Pluto to Get Partners? New Definition of "Planet" Proposed |
Astronomers proposed a new definition of "planet" today. ... The term "planet" has never had an official definition.
news.nationalgeographic.com/news/2006/08/060816-pluto-p...
news.nationalgeographic.com/news/2006/08/060816-pluto-planet.html
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The above image is a picture of what the proposed new solar system will ‘look’ like, if recent attempts to widen the definition of a planet go forward.