Earth's Moon Subtends an Angle of About 0

question 103

Multiple Choice

Earth's Moon subtends an angle of about 0.5° when viewed from Earth. Charon is about 1200 km in diameter and about 18,490 km away from the surface of Pluto. How large an angle does it subtend when viewed from Pluto?

• A) about the same size angle as Earth's Moon
• B) about 7 times larger an angle than Earth's Moon
• C) about 11 times larger an angle than Earth's Moon
• D) over 100 times larger an angle than Earth's Moon

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