Kearney's Comet has a radius of 145. km and orbits the solar system (goes around the Sun) in a circular path. The mass of Kearney's Comet is 7.25 × 1015 kg, and it is a distance of 5.97 × 1012 m from the Sun. How long does it take Kearney's comet to orbit the Sun once? Answer in units of years.

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