a binary star, the brightest star in the constellation Centaurus: magnitude, -0.27: it is the nearest of the stars that are visible to the naked eye, except for the sun
Examples of 'Alpha Centauri' in a sentence
Alpha Centauri
Their own earth people, back from Orion or Alpha Centauri or wherever it was they'd gone?
Tepper, Sheri S. A PLAGUE OF ANGELS (2001)
In 2903, Mark Twain became the first human being to visit another solar system when he arrived at Alpha Centauri during that e-year.