Newton's Theory of Gravity

• Gravity on Earth
• Universal Gravitation
• Gravity and Planet Motion
• Testing Newton's Gravity
  • source of Uranus orbit perturbations
  • binary stars
  • globular star clusters, e.g., 47 Tuc, Omega Cen, M13

Cosmology with Newton

Light

• Electromagnetic radiation
• Waves
• EM spectrum
• Doppler Effect: Light as a Speedometer
  animations here and here
• luminosity, flux, and a reprise of the inverse square law

The Sun and the Stars: Are We Normal?

• distances to stars: parallax
• stellar masses: binaries
• the Sun in context: mass vs luminosity, HR diagram