Star
Regulus
Blue-white star · B7V
α Leonis · Leo
Shown in its true colour — like most stars, it is too far away to photograph as more than a point of light.
Regulus is the brightest object in the constellation Leo and one of the brightest stars in the night sky. It has the Bayer designation designated α Leonis, which is Latinized to Alpha Leonis, and abbreviated Alpha Leo or α Leo. Regulus appears single, but is actually a quadruple star system composed of four stars that are organized into two pairs. The system lies approximately 79 light years from the Solar System.
Description from Wikipedia (CC BY-SA 4.0).
In your sky
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Key facts
Distance
~79.3 light-years
Apparent mag.
+1.36
Spectral type
B7V
Luminosity
147 × Sun
Absolute mag.
−0.57
Catalogue
HIP 49669
Spectral type
B7V
True colour from its B–V index (-0.09): a surface around 11400 K.
Did you know
- Regulus is also known as α Leonis.
- Its spectral type B7V marks it as a blue-white star.
- It lies in the constellation Leo.
