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Fomalhaut

American  
[foh-muhl-hawt, -muh-loh] / ˈfoʊ məlˌhɔt, -məˌloʊ /

noun

Astronomy.
  1. a star of the first magnitude and the brightest star in the constellation Piscis Austrinus.


Fomalhaut British  
/ ˈfəʊməˌləʊt /

noun

  1. the brightest star in the constellation Piscis Austrinus, possessing a protoplanetary disc. Distance: 25 light years. Spectral type A3V

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of Fomalhaut

First recorded in 1585–95; from Spanish Arabic fam al-ḥawt “mouth of the fish”; so called from its position in the constellation Piscis Austrinus ( Latin , literally “southern fish”)


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

The cloud is already about 30% brighter than Fomalhaut cs1, and observations in August 2025 confirmed that cs2 remains visible.

From Science Daily ● Jan. 7, 2026

Yet astronomers have now identified evidence of two enormous collisions around a nearby star named Fomalhaut, all within just 20 years.

From Science Daily ● Jan. 7, 2026

Fomalhaut lies in the southern constellation Piscis Austrinus and shines with 16 times the luminosity of our sun, making it one of the brightest stars visible from Earth.

From Science Daily ● Jan. 7, 2026

For years, astronomers have debated the nature of a bright object known as Fomalhaut b, first reported in 2008 just outside the star's main dust belt.

From Science Daily ● Jan. 1, 2026

Fomalhaut was also called al-zhalim, “the male ostrich.”

From Astronomical Curiosities Facts and Fallacies by J. Ellard Gore

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