If an alien astronomer observed a plot of the light curve as Jupiter passed in f

Question

If an alien astronomer observed a plot of the light curve as Jupiter passed in front of the Sun, by how much would the Sun's brightness drop during the transit? The Sun's radius is 7 times 10^8 m, and Jupiter's radius is 7.2 times 10^7 m. 1% 3% 7% by a factor of 1000 The Kepler satellite has detected a planet with a diameter of 1.7 Earth diameters. How much larger is the volume of this planet than Earth's volume? 1.7 times that of Earth 3 times that of Earth 5 times that of Earth 10 times that of Earth

Explanation / Answer

Is/Ij= Rj2 /Rs2

Is/Ij=(7.2x107)2/(7x108)2.

Is/Ij=0.01

Is/Ij=0.01 x100%

Is/Ij= 1%

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