Vega

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Vega

Vega , brightest star in the constellation Lyra ; Bayer designation Alpha Lyrae; 1992 position R.A. 18 ^h 36.7 ^m , Dec. +38°47′. A white main-sequence star of spectral class A0 V, its apparent magnitude is 0.1, making it the fifth brightest star in the sky. Vega is about three times the size of the sun and 50 times as luminous. Its distance from the earth is 26 light-years. Its name is from the Arabic for "falling eagle," referring to the figure that the Arabs associated with the constellation Lyra.

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"Vega." The Columbia Encyclopedia, Sixth Edition. 2008. Encyclopedia.com. 23 Dec. 2009 <http://www.encyclopedia.com>.

"Vega." The Columbia Encyclopedia, Sixth Edition. 2008. Encyclopedia.com. (December 23, 2009). http://www.encyclopedia.com/doc/1E1-Vega.html

"Vega." The Columbia Encyclopedia, Sixth Edition. 2008. Retrieved December 23, 2009 from Encyclopedia.com: http://www.encyclopedia.com/doc/1E1-Vega.html

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Vega

A Dictionary of Astronomy | 1997 | Â© A Dictionary of Astronomy 1997, originally published by Oxford University Press 1997. (Hide copyright information) Copyright

Vega The star Alpha Lyrae, magnitude 0.03, the fifth-brightest star in the sky. It is an A0 dwarf 25 l.y. away. The Infrared Astronomical Satellite (IRAS) discovered that it is surrounded by a disk of dust and gas that may be the site of a forming planetary system.

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Vega

World Encyclopedia | 2005 | Â© World Encyclopedia 2005, originally published by Oxford University Press 2005. (Hide copyright information) Copyright

Vega (Alpha Lyrae) White, main-sequence star in the constellation of Lyra; the fifth-brightest star in the sky. Its luminosity is 50 times that of the Sun.

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