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Spring 2008  Astr 10  1/30  Lecture 1.4
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"O dark, dark, amid the blaze of noon,
Irrevocably dark, total eclipse
Without all hope of day."
--John Milton, _Paradise Regained_

TODAY: WHEN DARKNESS FALLS
In-class activity 4 (*.pdf)
     Find and sit in your assigned groups
     Turn in group worksheet
"Precession of the nodes"
Perigee Moon, Apogee Moon
     (NASA Astronomy Pictures of the Day)
Total Lunar Eclipse (*.mpg)
     (Dave Lane)
Total Solar Eclipse, July 11, 1991 (*.mpg) 
     (NASA Goddard Space Flight Center)

CPS activity: Quiz 2 review
     You must use your own clicker for participation credit

ANNOUNCEMENT
**Add deadline = Friday, 2/2 = all add codes expire**

NEXT TIME 
Quiz 2 Announcements
     Wednesday, 2/6, 6:30-6:45 PM
     Closed-book, closed-notes
     Five multiple-choice questions
          (spread out over the four Q2.x learning goals)
     No work needs to be shown; no partial credit
     No scantrons; circle answers directly on Quiz
     **USE YOUR OWN UNIQUE 4-DIGIT P.I.N.**