image/svg+xml
Spectral Class
O
B
A
F
G
K
M
Temperature (K)
Luminosity (Solar luminosity)
Absolute Magnitude
10
-2
10
0
10
2
10
4
10
5
0
-5
50,000
10,000
6,000
4,000
Supergiants
Giants
Main sequence
White dwarfs
Spectral Class
O
B
A
F
G
K
M
Temperature (K)
Luminosity (Solar luminosity)
Absolute Magnitude
10
-2
10
0
10
2
10
4
10
5
0
-5
50,000
10,000
6,000
4,000
Supergiants
Giants
Main sequence
White dwarfs
Spectral Class
O
B
A
F
G
K
M
Temperature (K)
Luminosity (Solar luminosity)
Absolute Magnitude
10
-2
10
0
10
2
10
4
10
5
0
-5
50,000
10,000
6,000
4,000
Supergiants
Giants
Main sequence
White dwarfs
Spectral Class
O
B
A
F
G
K
M
Temperature (K)
Luminosity (Solar luminosity)
Absolute Magnitude
10
-2
10
0
10
2
10
4
10
5
0
-5
50,000
10,000
6,000
4,000
Main sequence turn off
Spectral Class
O
B
A
F
G
K
M
Temperature (K)
Luminosity (Solar luminosity)
Absolute Magnitude
10
-2
10
0
10
2
10
4
10
5
0
-5
50,000
10,000
6,000
4,000
Main sequence
Spectral Class
O
B
A
F
G
K
M
Temperature (K)
Luminosity (Solar luminosity)
Absolute Magnitude
10
-2
10
0
10
2
10
4
10
5
0
-5
50,000
10,000
6,000
4,000
Main sequence
Spectral Class
O
B
A
F
G
K
M
Temperature (K)
Luminosity (Solar luminosity)
Absolute Magnitude
10
-2
10
0
10
2
10
4
10
5
0
-5
50,000
10,000
6,000
4,000
Main sequence
Spectral Class
O
B
A
F
G
K
M
Temperature (K)
Luminosity (Solar luminosity)
Absolute Magnitude
10
-2
10
0
10
2
10
4
10
5
0
-5
50,000
10,000
6,000
4,000
50,000,000
100,000,000
500,000,000
1,000,000,000
10,000,000,000
Spectral Class
O
B
A
F
G
K
M
Temperature (K)
Luminosity (Solar luminosity)
Absolute Magnitude
10
-2
10
0
10
2
10
4
10
5
0
-5
50,000
10,000
6,000
4,000