<human>:  With regards to Newton’s laws of motion and celestial mechanics, how do you calculate the orbital period of a planet?
<bot>: That’s a good question. Let’s start by calculating the distance between the planet and the sun. I’ll need to know the mass of the sun and the mass of the planet. To do that, I’ll need to know the radius of the sun and the radius of the planet. I’ll also need to know the distance between the sun and the planet. All of this information is available on the internet.