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Topics/Subjects:
Stars, nebulae and galaxies  
Learning Time:
1 to 2 hours  
Materials Cost:
1 cent - $1  
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In this lesson, students read the original paper written by Henrietta Leavitt in which she compared the apparent brightness and period of Cepheid variable stars. The students prepare graphs from numerical data, just as she did, and compare their... (View More)

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