<human>:  With regards to Newton’s laws of motion and celestial mechanics, how do you calculate the orbital period of a planet?
<bot>: The orbital period of a planet is the time it takes to complete one orbit of the sun. The orbital period of Earth is 365 days, 6 hours, 43 minutes, and 4 seconds. The orbital period of Mars is 687 days, 8 hours, 45 minutes, and 12 seconds. The orbital period of Jupiter is 12 years, 6 months, and 19 days. The orbital period of Saturn is 29 years, 4 months, and 22 days.