Multiple Choice
Suppose that scientists in the future are able to observe a star orbiting the central region of the Andromeda Galaxy and find that it has an orbital period of 31 years and a semimajor axis of 4,500 AU.The mass of Andromeda's central black hole must then be around
A) 4.0 * 106 MSUN
B) 9.5 *106 MSUN
C) 4.0 * 107 MSUN
D) 9.5 * 107 MSUN
E) 4.0 * 108 MSUN
Correct Answer:

Verified
Correct Answer:
Verified
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