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Kappa Crucis

Proper NameNone
Bayer DesignationKappa Crucis
Flamsteed NumberNone
HR (BSC)4890
HD111973
ConstellationCrux
Right Ascension12h 54m 54s
Declination-60° 28' 18"
Distancec.8,500 light years
c.2,600 parsecs
MagnitudeApparent: +5.9
Absolute: -6.2
Spectral ClassB5Ia Blue Supergiant
Optimum VisibilityApril (Usually visible from southern latitudes)
NotesThe brightest of the stars that make up the Jewel Box cluster (sometimes called the Kappa Crucis Cluster after this star) that lies near Becrux in the sky. Kappa Crucis is an intensely luminous supergiant star whose spectrum shows that it has a smaller binary companion.

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