Cosmic Perspective Fundamentals
Cosmic Perspective Fundamentals
3rd Edition
ISBN: 9780134988504
Author: Bennett, Jeffrey O., Donahue, M. (megan), SCHNEIDER, Nicholas, Voit, Mark
Publisher: Pearson,
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Chapter 12, Problem 5QQ

Choose the best answer to each of the following. Explain your reasoning.

If you observe two Cepheid variable stars to have the same period and one is brighter than the other. (a) the brighter one is closer. (b) the brighter one is farther away. (c) there is not enough information to determine which star is closer.

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