Death of a 1 M_sun star

• Helium flash
• Helium burning
• Red giants and implications for HR diagrams like this and this
• Death throes
• evolutionary path on HR diagram

Remains of a 1 M_sun star: White Dwarf

• Evidence: Sirius system in X-rays
  within a globular cluster
• Chandrasekhar mass

Remains of a 1 M_sun star: Planetary nebula

• Lemon Slice, NGC 7009 Spirograph, Helix, Ring, Egg, Hourglass, Southern Ring
  Methuselah, M76, owls, NGC2440, butterfly
• Cat's Eye: optical closeup, zoom out, X-ray vision,

The Evolution of Low Mass Stars