Eclipses

• geometery of orbits
• Lunar
  • total, moonrise in eclipse, time lapse
• Solar
  • partial, over the Golden Gate,
  • total--over Turkey: zoom, time lapse
  • high-res annular, composite of rare hybrid event
  • diamond ring
  • Moon at closest and farthest (perigee/apogee)
  • eclipse path animation
  • looking down on an eclipsed Earth

Planet Motion

• Location on celestial sphere
  • four-planet sunset
  • trailing planets
  • Clementine lunar orbiter view of the Moon, Sun, Saturn, Mars, and Mercury.
• Normal (direct) motion: SOHO/LASCO movie of Mercury conjunction
• Retrograde motion: QuickTime animation

Scientific Models

Greek Cosmology: Geocentric

• Aristotle
  • physical principles
  • experimental evidence: round earth, no stellar parallax
• epicycles: animation
• Ptolemy
• enduring geocentrism: medieval cosmology