PX282 - A2 - hertzsprung-russel diagrams

• see:
  • PX158 - I1 - hertzprung-russell diagram
  • PX158 - I3 - theoretician's H-R diagram

image: chandra x-ray observatory

• on the main-sequence:
  • $T_{eff}\sim 30K-2.5K$
  • $M_{\ast }\sim 50M_{\odot }-0.1M_{\odot }$
  • $R_{\ast }\sim 10R_{\odot }-0.2R_{\odot }$
• after main-sequence: giant stars, white dwarfs, supernova