Astronomy: General

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visual binary

A Dictionary of Astronomy | 1997 | Copyright

visual binary A binary star in which the two components are sufficiently well separated to be individually detectable visually or photographically. The brighter star is known as the primary, and the fainter as the secondary, companion, or comes. Even when orbital motion is extremely slow, visual binaries may sometimes be identified from the common proper motion of their components.

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"visual binary." A Dictionary of Astronomy. 1997. Encyclopedia.com. 31 May. 2012 <http://www.encyclopedia.com>.

"visual binary." A Dictionary of Astronomy. 1997. Encyclopedia.com. (May 31, 2012). http://www.encyclopedia.com/doc/1O80-visualbinary.html

"visual binary." A Dictionary of Astronomy. 1997. Retrieved May 31, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O80-visualbinary.html

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visual binary

The Columbia Encyclopedia, 6th ed. | 2011 | Copyright

visual binary see binary star .

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"visual binary." The Columbia Encyclopedia, 6th ed.. 2011. Encyclopedia.com. (May 31, 2012). http://www.encyclopedia.com/doc/1E1-X-visualbi.html

"visual binary." The Columbia Encyclopedia, 6th ed.. 2011. Retrieved May 31, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1E1-X-visualbi.html

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visual binary

A Dictionary of Earth Sciences | 1999 | | Copyright

visual binary See STAR PAIR.

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AILSA ALLABY and MICHAEL ALLABY. "visual binary." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. 31 May. 2012 <http://www.encyclopedia.com>.

AILSA ALLABY and MICHAEL ALLABY. "visual binary." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. (May 31, 2012). http://www.encyclopedia.com/doc/1O13-visualbinary.html

AILSA ALLABY and MICHAEL ALLABY. "visual binary." A Dictionary of Earth Sciences. 1999. Retrieved May 31, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O13-visualbinary.html

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