The Cosmic Perspective (9th Edition)
The Cosmic Perspective (9th Edition)
9th Edition
ISBN: 9780134874364
Author: Jeffrey O. Bennett, Megan O. Donahue, Nicholas Schneider, Mark Voit
Publisher: PEARSON
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Chapter 19, Problem 31EAP

Choose the best answer to each of the following. Explain your reasoning with one or more complete sentences.

31. How do we determine the Milky Ways mass outside the Sun’s orbit? (a) from the Suns orbitai velocity and its distance from the center of our galaxy (b) from the orbits of halo stars near the Sun (c) from the orbits of stars and gas clouds orbiting the galactic center at greater distances than the Sun

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