21st Century Astronomy And Learning Astronomy By Doing Astronomy (fifth Edition)
21st Century Astronomy And Learning Astronomy By Doing Astronomy (fifth Edition)
5th Edition
ISBN: 9780393613360
Author: Laura Kay, Ana Larson, Stacy Palen, George Blumenthal
Publisher: W. W. Norton & Company
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Chapter 15, Problem 37QP

(a)

To determine

Reason why a B8 main-sequence star ionize far more interstellar hydrogen.

(b)

To determine

Properties of star determining whether it can ionize large amounts of interstellar hydrogen.

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