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Alpha Crucis

Proper NamesAcrux
Bayer DesignationAlpha1,2 Crucis, Alpha Crucis A, B
Flamsteed NumberNone
BSC4730 (A), 4731 (B)
HD108248 (A), 108249 (B)
Right Ascension12h 26m 36s
Declination-63° 5' 57"
Distance322 light years
99 parsecs
MagnitudeApparent: +1.3 (A), +1.6 (B)
Absolute: -3.7 (A), -3.4 (B)
Spectral ClassB0.5IV Blue Subgiant (A), B1V Blue Main Sequence Star (B)
Optimum VisibilityApril (Usually visible from southern latitudes)
Relative Galactic Position of Acrux

The Galactic position and direction of Acrux relative to Earth's Sun. Note that, at this extreme scale, the two stars are effectively in the same place.

A bright binary system lying more than 300 light years from Earth, in the constellation Crux.


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