Notes
Slide Show
Outline
1
Science And Science Fiction
    • Angular Sizes and Eclipses
      • (Based on lecture slides I use in ASTR 1050)
2
Angular sizes
3
Shadows and Eclipses
4
Types of eclipses
5
Solar eclipses
6
Eclipse Facts
  • Longest possible total eclipse is only 7.5 minutes.  Average is only 2-3 minutes.
  • Shadow sweeps across Earth @ 1000 mph!
    • (Compare with scene in The Mummy Returns!)
  • Birds will go to roost in a total eclipse.  The temperature noticeably drops.
  • Totally predictable (even in ancient times, e.g., the Saros Cycle, eclipse pattern repeats every 6585.3 days or 18 years, 11 1/3 days).
7
Eclipses and Nodes
8
Variations in Solar Eclipses