The Large Magellanic Cloud Is About 50 Kpc from the Center

question 68

Multiple Choice

The Large Magellanic Cloud is about 50 kpc from the center of the Milky Way and moves around it at about 170 km/s, as shown in the figure below.What is the inferred mass of the galaxy enclosed within this radial extent?

• A) 3.4 *10¹¹ M_SUN
• B) 9.4 * 10¹⁰ M_SUN
• C) 2.0 * 10¹⁰ M_SUN
• D) 3.1 * 10¹² M_SUN
• E) 1.7 * 10⁷ M_SUN

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