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Fall 2007  Astr 10  10/24  Lecture 3.3  
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"Though my soul may set in darkness, 
     it will rise in perfect light;
I love the stars too fondly to be fearful of the night."
--Sarah Williams

TODAY: STAR LIGHT, STAR BRIGHT...
Quiz 7: 6:30-6:45 PM
     **PLEASE SIT IN EVERY OTHER SEAT**
     USE YOUR OWN UNIQUE 4-DIGIT P.I.N.
How fast and how far? (*.pdf)
     Sagittarius Star Cloud
     (The Hubble Heritage Project)     
     Stellar Parallax demonstrations: [1], [2], [3]  
In-class activity 17 (*.pdf)
     Find and sit in your assigned groups
     Turn in group worksheet
"Blackbody" stars
     Blackbody demonstrations: [1], [2], [3]
     Size Comparison of Several Stars
     (NASA Goddard Space Flight Center)  

NEXT TIME
Get started on in-class activity 18 (*.pdf)