Mimosa

Bet Cru

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Beta Crucis, better known as Mimosa, is the second-brightest star of the Southern Cross after Acrux. A blue-white B-type star, it registers a hot, negative B–V index of −0.238 and appears at magnitude 1.25 from a distance near 279 light-years. Its absolute magnitude of −3.41 marks an intrinsic luminosity many times the Sun's. Set at a declination of −59° within the constellation Crux, Mimosa lies deep in the southern sky and never rises for most northern observers. With Acrux and the other Cross stars it forms one of the most recognisable asterisms of the southern celestial hemisphere.

Physical Properties

Spectral Class B Class B — B-type (Blue-White)
Color Index (B−V) -0.238

Observation

Apparent Magnitude +1.25
Absolute Magnitude -3.41
Distance 279 ly
Constellation Crux

Position

Right Ascension 12h 47.72m
Declination -59° 41.33′

Frequently Asked Questions

What type of star is Mimosa?
Mimosa is a Class B — B-type (Blue-White) star.
How far is Mimosa from Earth?
Mimosa is approximately 278.5 light-years from Earth.
Can you see Mimosa with the naked eye?
With an apparent magnitude of 1.25, Mimosa is visible to the naked eye.
What constellation is Mimosa in?
Mimosa is located in the constellation Crux.