Category:Hertzsprung–Russell classifications

A

• Asymptotic-giant-branch stars‎ (5 C, 95 P)

B

• Bright giants‎ (7 C, 1 P)
• Brown dwarfs‎ (5 C, 158 P)

D

• Main-sequence stars‎ (8 C, 3 P)

G

• Giant stars‎ (9 C, 5 P)

H

• Hertzsprung gap‎ (6 P)
• Horizontal-branch stars‎ (2 C, 199 P)
• Hypergiants‎ (6 C, 6 P)

P

• Pre-main-sequence stars‎ (3 C, 19 P)

R

• Red dwarfs‎ (2 C, 12 P)

S

• Subdwarfs‎ (6 C, 3 P)
• Subgiant stars‎ (7 C, 6 P)
• Supergiants‎ (10 C, 5 P)

W

• White dwarfs‎ (3 C, 154 P)

• Hertzsprung–Russell diagram
• Stellar classification

B

• Blue loop

H

• Hayashi track
• Henyey track
• Hess diagram

I

• Instability strip

R

• Red-giant branch

S

• Stellar birthline