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fomalhaut

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Fo⋅mal⋅haut

  [foh-muhl-hawt, -muh-loh]
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–noun Astronomy.
a star of the first magnitude and the brightest star in the constellation Piscis Austrinus.
Origin:
1585–95; < SpAr fam al-ḥawt mouth of the fish; so called from its position in the constellation
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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Fo·mal·haut   (fō'məl-hôt')   
n.  The brightest star in the constellation Piscis Austrinus, 24 light-years from Earth.

[Arabic fam al-ḥūt, mouth of the fish, Fomalhaut : fam, mouth; see p in Semitic roots + al-, the + ḥūt, fish.]
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Word Origin & History

Fomalhaut 
bright star in the constellation Piscis Austrinis, 1594, from Ar. Fum al Hut "the Fish's Mouth."
Online Etymology Dictionary, © 2001 Douglas Harper
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Encyclopedia

Fomalhaut

the 17th star (excluding the Sun) in order of apparent brightness. It is used in navigation because of its conspicuous place in a sky region otherwise lacking in bright stars. It lies in the southern constellation Piscis Austrinus, about 25 light-years from the Earth. A white star, it has an apparent magnitude of 1.18. A sixth-magnitude companion star is yellow.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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