What is a circle around a planet called?
They are named rings which the most famous ones are located on the planet Saturn.
This is because the farther a planet is from the sun, the farther it has to travel to get all the way around the sun. You can see this by drawing a dot on a piece of paper to represent the sun. Draw a circle around that dot to represent the orbit of a planet, and then a circle around that circle to represent the orbit of a farther planet. You can measure the inner…
Why a planet farther from the sun has a longer period of revolution than a planet closer to the sun?
The force that keeps an object moving in a circle or an arc is called a centripetal force. Gravity is an example of centripetal force that keeps a satellite in a circular orbit around a planet. Another example is when you ride on a merry-go-round - the rotating play structure imparts a centripetal force upon you, forcing you to also travel in a circle.