If an Astronomer on a Planet Orbiting a Nearby Star

question 1

Multiple Choice

If an astronomer on a planet orbiting a nearby star observed the Sun when Neptune was transiting in front of the Sun, how would the Sun's brightness change? Note that the radius of Neptune is 2.5 * 10⁷ m.

• A) The Sun's brightness would decrease by 0.1 percent.
• B) The Sun's brightness would increase by 0.1 percent.
• C) The Sun's brightness would increase by 1 percent.
• D) The Sun's brightness would decrease by 1 percent.
• E) The Sun's brightness would not change at all.

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