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    Astronomy Today Study Set 1
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    Exam 23: The Milky Way Galaxy: a Spiral in Space
  5. Question
    Who Discovered the Period-Luminosity Relationship, and Why Was It So
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Who Discovered the Period-Luminosity Relationship, and Why Was It So

Question 23

Question 23

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Who discovered the period-luminosity relationship, and why was it so critical?

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Henrietta Leavitt discovered the period-...

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