Physics: Principles with Applications (7th Edition)

Published by Pearson
ISBN 10: 0-32162-592-7
ISBN 13: 978-0-32162-592-2

Chapter 33 - Astrophysics and Cosmology - Misconceptual Questions: 5

Answer

Choice B, C, and D.

Work Step by Step

Using parallax involves making measurements of the star’s motion relative to the background of distant stars. The star must be relatively close for it to move against that background, and parallax won’t work for stars outside our galaxy. As discussed in this chapter, the other choices are useful for measuring the distances to extragalactic stars.
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