Star
Mimosa
Blue-white star · B0.5III
β Crux · Crux
Shown in its true colour — like most stars, it is too far away to photograph as more than a point of light.
Mimosa is the second-brightest object in the southern constellation of Crux, and the 20th-brightest star in the night sky. It has the Bayer designation β Crucis, which is Latinised to Beta Crucis and abbreviated Beta Cru or β Cru. Mimosa forms part of the prominent asterism called the Southern Cross. It is a triple star system.
Description from Wikipedia (CC BY-SA 4.0).
In your sky
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Key facts
Distance
~278 light-years
Apparent mag.
+1.25
Spectral type
B0.5III
Luminosity
2,008 × Sun
Absolute mag.
−3.41
Catalogue
HIP 62434
Spectral type
B0.5III
True colour from its B–V index (-0.24): a surface around 14600 K.
Did you know
- Mimosa is also known as β Crux.
- Its spectral type B0.5III marks it as a blue-white star.
- It lies in the constellation Crux.
