Category:Hertzsprung–Russell classifications

A

• Asymptotic-giant-branch stars (4 C, 75 P)

B

• Bright giants (7 C, 2 P)
• Brown dwarfs (3 C, 130 P)

D

• Main-sequence stars (7 C, 2 P)

G

• Giant stars (8 C, 4 P)

H

• Horizontal-branch stars (2 C, 140 P)
• Hypergiants (6 C, 6 P)

P

• Pre-main-sequence stars (2 C, 12 P)

R

• Red dwarfs (2 C, 9 P)

S

• Subdwarfs (4 C, 2 P)
• Subgiant stars (6 C, 3 P)
• Supergiants (9 C, 4 P)

W

• White dwarfs (2 C, 119 P)

• Hertzsprung–Russell diagram
• Astronomy:Stellar classification

B

• Astronomy:Blue loop

H

• Astronomy:Hayashi track
• Astronomy:Henyey track
• Astronomy:Hess diagram

I

• Astronomy:Instability strip

R

• Astronomy:Red-giant branch

S

• Astronomy:Stellar birthline