Q. In the Milky Way there are approximately

A
2 million stars
B
100 million stars
C
400 million stars
D
100 billion stars
Solution:

In one calculation, the Milky Way has a mass of about 100 billion solar masses, so it is easiest to translate that to 100 billion stars. This accounts for the stars that would be bigger or smaller than our sun, and averages them out. Other mass estimates bring the number up to 400 billion

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