The brightest star in the constellationAquila; Alpha (α) Aquilae. It is the twelfth brightest star in the sky, and forms one corner of the Summer Triangle. (proper noun)
Examples of word Altair
I was thinking the refuelling scheme might be risky since it'd require us to be able to store cryogenic fuels for extended periods in orbit, but IIRC the Altair is supposed to run lox-hydrogen.
But it was the development of the Altair 8800 personal computer that really captured the attention of world in January 1975, when Roberts 'next product took its inaugural bows on the cover of Popular Electronics under the name Altair at the suggestion of Solomon's daughter, who was watching Star Trek at the time.
The three major parts of this system were rockets called Ares, a capsule called Orion, and a lunar lander called Altair.