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RXJ1800, a galaxy, lies very near in the sky to the bright star Vega. What is the best explanation ...

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RXJ1800, a galaxy, lies very near in the sky to the bright star Vega. What is the best explanation ...

RXJ1800, a galaxy, lies very near in the sky to the bright star Vega. What is the best explanation for them appearing close together?
A) Vega orbits the center of mass of RXJ1800.
B) Vega must have recently formed in RXJ1800 and been ejected.
C) They coincidentally lie along the same line of sight.
D) Their random motions have caused RXJ1800 and Vega to drift to within a few light-years of each other.

Textbook

The Essential Cosmic Perspective

Edition: 7^th

Authors: Bennett, Donahue, Schneider, Voit

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More solutions for this book are available here

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