Al·tair ( l-t r , -târ, ltr , -târ)n. A very bright, variable double star in the constellation Aquila, approximately 15.7 light-years from Earth. [Arabic (an-nasr) a  - 'ir, the flying (eagle) : al-, the + 'ir, flying, active participle of ra, to fly; see yr in Semitic roots.] |
Altair [ˈæltɛə]
n
(Astronomy) the brightest star in the constellation Aquila. Visual magnitude: 0.77; spectral type: A7V; distance: 16.8 light years
[Arabic, from al the + tā'ir bird]
| Altair (l-târ, -tr) A bright white star in the constellation Aquila. Altair is a main-sequence star in the Hertzprung-Russell diagram. It is the 12th brightest star in the night sky, with an apparent magnitude of 0.77. Altair, along with Vega and Deneb, form the Summer Triangle asterism. Scientific name: Alpha Aquilae. |
ThesaurusLegend: Synonyms Related Words Antonyms
| Noun | 1. | Altair - double star 15.7 light years from Earth; the brightest star in the Aquila constellation Aquila - a constellation in the Milky Way near Cygnus; contains the star Altair |
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