Alpha Orionis

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Related to Alpha Orionis: Beta Orionis, Delta Orionis
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Noun1.Alpha Orionis - the second brightest star in Orion
Orion, Hunter - a constellation on the equator to the east of Taurus; contains Betelgeuse and Rigel
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References in periodicals archive ?
He demonstrated that the diameter of Alpha Orionis was 260,000,000 miles.
Instead of Alpha Orionis, Eta Carinae, or Alpha Centauri they say Alpha Orion, Eta Carina, and (presumably) Alpha Centaurus.