Question

Astronomers discover an exoplanet, a planet orbiting a star other than the Sun, that has an orbital period of 4.01 Earth years in a circular orbit around its star, which has a measured mass of 3.97X10^30. Find the radius of the exoplanet's orbit.

Answer 1

Griven: The arbital period of planet (1) T = 4.01 earth year T =(4.01)x(31536000) see T = 126459360 sec mass of the planet (M)= 3.97X1030 kg Solution: from Keplcons third daw Redus (m) = for something = [arcas93603x66705" 397 " * = 4.7536 xromni 27

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