Spectral TypeA1V
Temperature9,940 K
Contender A
Sirius
A1V
VS
Spectral TypeK0 III
Temperature4,865 K
Contender B
Pollux
K0 III
Radius
R☉
Sirius1.71
Pollux8.8
Pollux is 5.1x higher
Mass
M☉
Sirius2.06
Pollux1.91
Sirius is 1.1x higher
Temperature
K
Sirius9,940
Pollux4,865
Sirius is 2x higher
Luminosity
L☉
Sirius25.4
Pollux43
Pollux is 1.7x higher
Distance
ly
Sirius8.6 ly
Pollux33.7 ly
Sirius is 3.9x lower
Brightness
mag
Sirius-1.46
Pollux1.14
Sirius is -0.8x lower