Spectral TypeK1 V
Temperature5,260 K
K1 V TypeConstellation: Centaurus
Alpha Centauri B
Toliman
Alpha Centauri B is a cool orange dwarf orbiting its Sun-like companion.
Distance
4.37 ly
Light Years from Earth
Age
5.3 billion years
Estimated
Mass
0.91 M☉
Relative to Sun
Radius
0.86 R☉
Relative to Sun
Surface Temp
5,260 K
Effective Temp
Luminosity
0.5 L☉
Total Energy Output
Astrophysical Data
Apparent Magnitude1.33
Absolute Magnitude5.71
Spectral ClassificationK1 V