Spectral TypeA1V
Temperature9,940 K
A1V TypeConstellation: Canis Major
Sirius
Alpha Canis MajorisDog Star
Sirius is the brightest star in Earth's night sky and a close stellar neighbor.
Distance
8.6 ly
Light Years from Earth
Age
242 million years
Estimated
Mass
2.06 M☉
Relative to Sun
Radius
1.71 R☉
Relative to Sun
Surface Temp
9,940 K
Effective Temp
Luminosity
25.4 L☉
Total Energy Output
Astrophysical Data
Apparent Magnitude-1.46
Absolute Magnitude1.42
Spectral ClassificationA1V