
1) Alternative hip hop group 2) American musical duo 3) Midwest hip hop group
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A binary star is a star system consisting of two stars orbiting around their common center of mass. The more massive star is called the primary and the other is its companion star, comes z, or secondary. Systems of two, three, four, or even more stars are called multiple star systems. These systems, especially when more distant, often appear to th...
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http://en.wikipedia.org/wiki/Binary_star

A system of two stars, orbiting around one another. Binary (and triple and even higher multiples) stars are very common; astronomers estimate that about half of all stars are members of multiple-star systems. The nearest star to our solar system, Alpha Centauri, is actually our nearest example of a multiple star system — it consists of three...
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http://www.astrosociety.org/education/publications/tnl/14/14.html

Two stars revolving around a common center of gravity.
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http://www.braeunig.us/space/glossary.htm

pair of stars in orbit around their common centre of gravity. A high proportion, perhaps one-half, of all stars in the Milky Way Galaxy are binaries ... [15 related articles]
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http://www.britannica.com/eb/a-z/b/65

The binary star Albireo (Beta Cygni), which consists of two stars orbiting around each other every 7,300 years at a mean distance of about 400 billion miles (650 billion km) Two stars in orbit around their common center of mass and held together by their mutual gravitational pull. Surveys have ...
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A system of two stars that are genuinely associated with each other and are moving around their common centre of gravity.
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http://www.encyclo.co.uk/local/20448

A system of two stars orbiting around a common centre of mass due to their mutual gravity. Binary stars are twins in the sense that they formed together out of the same interstellar cloud.
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[
n] - a system of two stars that revolve around each other under their mutual gravitation
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http://www.webdictionary.co.uk/definition.php?query=binary%20star

Pair of stars bound together by mutual gravitation and orbiting their common centre of mass. See also: Star.
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https://www.encyclo.co.uk/local/20687
binary noun a system of two stars that revolve around each other under their mutual gravitation
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https://www.encyclo.co.uk/local/20974

Pair of stars moving in orbit around their common centre of mass. Observations show that most stars are binary, or even multiple – for example, the nearest star system to the Sun, Rigil Kent (Alpha Centauri). One of the stars in the binary system Epsilon Aurigae may be the largest star known. Its diameter is 2,800 times that of the Sun. If it ......
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https://www.encyclo.co.uk/local/21221

A star which is actually made up of two stars orbiting each other.
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https://www.encyclo.co.uk/local/22784

a system of two stars that revolve about their common center of mass. Also called
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https://www.infoplease.com/dictionary/binary-star
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