According to Kepler's third law the orbital period is 7.20.
Kepler's third law states that the square of a planet's orbital period (T²) is directly proportional to the cube of its average distance from the Sun (R³). Furthermore, the ratio between T² and R³ has exactly the same magnitude for all the stars that orbit this star.
"The ratio of the square of the period to the cube of the mean radius of a planet's orbit is constant.""
[tex]\frac{T^{2} }{R^{3} } = CONSTANT[/tex]
With this information, we can conclude that according to Kepler's third law the orbital period is 7.20.
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