Alpha Crucis

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The brightest star in the constellation Crux, also called Acrux. It is a double star consisting of a B0.5 subgiant, magnitude 1.3, and a B1 dwarf, magnitude 1.7. To the naked eye they appear as a single star of magnitude 0.8. Alpha Crucis is 322 l.y. distant.

Subjects: Astronomy and Astrophysics.

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