The Hertzsprung-Russell Diagram

The Hertzsprung-Russell Diagram is a good way to display stars according to the temperature and luminosity scales.

Luminosity and mass are not equivalent!

Spectral TypeM / LvM / M
B0 V 0.005 18.00
A0 V 0.070 3.20
F0 V 0.220 1.70
G0 V 0.740 1.10
K0 V 2.100 0.78
M0 V 22.000 0.47
M5 V 131.000 0.21
G0 III 0.080 2.50
K0 III 0.070 4.00
M0 III 0.050 6.30