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aphelion
a·phe·li·on / əˈfēlyən; əˈfēlēən/ • n. (pl. a·phe·li·a / əfēlyə; əˈfēlēə/ or a·phe·li·ons) Astron. the point in the orbit of a planet, asteroid, or comet at which it is furthest from the sun: Mars is at aphelion. The opposite of perihelion. |
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"aphelion." The Oxford Pocket Dictionary of Current English. 2009. Encyclopedia.com. 27 May. 2012 <http://www.encyclopedia.com>. "aphelion." The Oxford Pocket Dictionary of Current English. 2009. Encyclopedia.com. (May 27, 2012). http://www.encyclopedia.com/doc/1O999-aphelion.html "aphelion." The Oxford Pocket Dictionary of Current English. 2009. Retrieved May 27, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O999-aphelion.html |
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aphelion
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T. F. HOAD. "aphelion." The Concise Oxford Dictionary of English Etymology. 1996. Encyclopedia.com. 27 May. 2012 <http://www.encyclopedia.com>. T. F. HOAD. "aphelion." The Concise Oxford Dictionary of English Etymology. 1996. Encyclopedia.com. (May 27, 2012). http://www.encyclopedia.com/doc/1O27-aphelion.html T. F. HOAD. "aphelion." The Concise Oxford Dictionary of English Etymology. 1996. Retrieved May 27, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O27-aphelion.html |
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aphelion
aphelion Point in the Earth's elliptical orbit at which the planet is farthest from the Sun. See also PERIHELION.
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AILSA ALLABY and MICHAEL ALLABY. "aphelion." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. 27 May. 2012 <http://www.encyclopedia.com>. AILSA ALLABY and MICHAEL ALLABY. "aphelion." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. (May 27, 2012). http://www.encyclopedia.com/doc/1O13-aphelion.html AILSA ALLABY and MICHAEL ALLABY. "aphelion." A Dictionary of Earth Sciences. 1999. Retrieved May 27, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O13-aphelion.html |
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aphelion
aphelion The point in an elliptical orbit around the Sun that is farthest from the Sun's centre.
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"aphelion." A Dictionary of Astronomy. 1997. Encyclopedia.com. 27 May. 2012 <http://www.encyclopedia.com>. "aphelion." A Dictionary of Astronomy. 1997. Encyclopedia.com. (May 27, 2012). http://www.encyclopedia.com/doc/1O80-aphelion.html "aphelion." A Dictionary of Astronomy. 1997. Retrieved May 27, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O80-aphelion.html |
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aphelion
aphelion , point farthest from the sun in the orbit of a body about the sun. See apsis . |
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Cite this article
"aphelion." The Columbia Encyclopedia, 6th ed.. 2011. Encyclopedia.com. 27 May. 2012 <http://www.encyclopedia.com>. "aphelion." The Columbia Encyclopedia, 6th ed.. 2011. Encyclopedia.com. (May 27, 2012). http://www.encyclopedia.com/doc/1E1-aphelion.html "aphelion." The Columbia Encyclopedia, 6th ed.. 2011. Retrieved May 27, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1E1-aphelion.html |
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