Properties of typical G-type main-sequence stars
Spectral
type |
Mass |
Surface
gravity
(log g) |
Effective
temperature
(K) |
Color
index
(B - V) |
| G0V |
1.15 |
4.32 |
5,980 |
0.583 |
| G1V |
1.10 |
4.34 |
5,900 |
0.608 |
| G2V |
1.07 |
4.35 |
5,800 |
0.625 |
| G3V |
1.04 |
4.37 |
5,710 |
0.642 |
| G4V |
1.00 |
4.38 |
5,690 |
0.657 |
| G5V |
0.98 |
4.40 |
5,620 |
0.672 |
| G6V |
0.93 |
4.42 |
5,570 |
0.690 |
| G7V |
0.90 |
4.44 |
5,500 |
0.713 |
| G8V |
0.87 |
4.46 |
5,450 |
0.740 |
| G9V |
0.84 |
4.48 |
5,370 |
0.776 |
Properties of typical M-type main-sequence stars
Stellar
class |
Mass
(M) |
Radius
(R) |
Luminosity
(L) |
Teff
(K) |
| M0V |
60% |
62% |
7.2% |
3,800 |
| M1V |
49% |
49% |
3.5% |
3,600 |
| M2V |
44% |
44% |
2.3% |
3,400 |
| M3V |
36% |
39% |
1.5% |
3,250 |
| M4V |
20% |
26% |
0.55% |
3,100 |
| M5V |
14% |
20% |
0.22% |
2,800 |
| M6V |
10% |
15% |
0.09% |
2,600 |
| M7V |
9% |
12% |
0.05% |
2,500 |
| M8V |
8% |
11% |
0.03% |
2,400 |
| M9V |
7.5% |
8% |
0.015% |
2,300 |
|