Given that our Sun orbits the galaxy with a period of 200 My at 2.6*1020 m from the
Chapter 8, Problem 41(choose chapter or problem)
Given that our Sun orbits the galaxy with a period of 200 My at 2.6*1020 m from the galactic center, estimate the galaxys mass. Assume (incorrectly) that the galaxy is essentially spherical and that most of its mass lies interior to the Suns orbit.
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