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Assume That a Planet Just Like Earth Orbits the Bright

Question 31

Multiple Choice

Assume that a planet just like Earth orbits the bright star named Sirius.If this Earth-like planet orbits with a semimajor axis of 1 AU and an orbital period of 7 months,what is the mass of Sirius?


A) 3 M⨀
B) 12 M⨀
C) 8 M⨀
D) 5 M⨀
E) 17 M⨀

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