Altair

noun

Al·​tair al-ˈtī(-ə)r How to pronounce Altair (audio)
-ˈter,
ˈal-ˌtī(-ə)r,
-ˌter
: the brightest star in the constellation Aquila

Examples of Altair in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The lowest of the three stars in the Summer Triangle is Altair, the 12th brightest star in the night sky. Jamie Carter, Forbes.com, 29 Aug. 2025 Before Altair, Brown held senior finance roles at NortonLifeLock, Symantec, Blue Coat, Brocade, NETGEAR, and KPMG. Sheryl Estrada, Fortune, 29 Aug. 2025 The Summer Triangle—formed by the bright stars Vega, Altair, and Deneb—is a prominent asterism that lies along the Milky Way's path. Harry Bennett, Space.com, 28 Aug. 2025 The star to the lower right of Vega is Altair, the brightest star in the constellation Aquila the Eagle. Mike Lynch, Twin Cities, 3 Aug. 2025 The triangle’s vertices are formed by the stars Deneb, Vega, and Altair, forming a celestial isosceles triangle that’d make Euclid proud, that spans the constellations Cygnus, Lyra, and Aquila. Tom Hawking, Popular Science, 31 July 2025 Its brightest star, Altair, is the southernmost star in the Summer Triangle, which is an easy-to-locate star pattern in Northern Hemisphere summer skies. Jenny Porter Tilley, Louisville Courier Journal, 18 July 2025 Financing for the park comes from community and redevelopment-related funds, city bonds and a community facilities district tax levied on residents near the Great Park in the Altair, Cadence Park and Novel Park neighborhoods. Jonathan Horwitz, Oc Register, 7 May 2025

Word History

Etymology

borrowed from New Latin, shortened from Arabic al-nasr al-ṭāʼir "the flying eagle," a name for the line of stars Alpha, Beta and Gamma Aquilae

Note: According to Paul Kunitzsch, Arabische Sternnamen in Europa (Wiesbaden, 1959), the Arabic name (with many variants) was applied to the single star Alpha Aquilae for convenience in astrolabe manuals. In Arabic star nomenclature, al-nasr al-ṭāʼir, "the flying eagle" in Aquila was opposed to al-nasr al-wāqiʻ, "the falling eagle," applied to the three stars Alpha, Epsilon and Zeta Lyrae.

First Known Use

1730, in the meaning defined above

Time Traveler
The first known use of Altair was in 1730

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Cite this Entry

“Altair.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Altair. Accessed 8 Sep. 2025.

Last Updated: - Updated example sentences
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