Physics Question #158

Cristina, a 14 year old female from the Internet asks on March 27, 2000,

How far is the Sun from Pluto? How long does it take for sunlight to travel to Pluto?

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The answer

Barry Shell answered on March 27, 2000

The average orbital radius of Pluto is 3660 million miles. It takes 8 minutes for sunlight to get to Earth from the sun, and Pluto is 40 times farther away from the sun than Earth is, so that would mean it would take sunlight 320 minutes or 5 hours and 20 minutes to reach Pluto.

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