The Hertzsprung-Russell / Color-Magnitude Diagram

• real data: Hipparchos
• all stars: observer's version (i.e., axes in observational units)
• all stars: theoretical version (i.e., axes in underlying physical units)
• animated HR diagram

The Life Cycle of of a 1 M_sun star

• protostar birth in molecular clouds
• adulthood: the main sequence
• Red giants and implications for HR diagrams like this and this
• Helium flash
• Helium burning: horizontal branch
• Death throes: asymptotic giant branch
• 1M_sun HR diagram: evolutionary path, animation

Testing Stellar Evolution Theory: Star Clusters

• open clusters: stellar kindergartens
  • the Plieades image and HR diagram
  • the Hyades image and HR diagram
  • h and chi Persei image and HR diagram
• globular clusters: stellar retirement communities
  • M55 image and HR diagram
  • M5 image, zoom, and HR diagram

Remains of a 1 M_sun star: White Dwarf

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

Remains of a 1 M_sun star: Planetary nebula

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