Because gravity is counteracting centrifugal force, holding it in orbit.
The path where a planet moves around the sun is called an orbit.
Each planet moves in its own elliptical orbit round the Sun, then and now.
Each planet would move away from its orbital path in a direction tangential to the orbit. That means roughly "sideways" from a line between the Sun and the planet.
Each planet would move away from its orbital path in a direction tangential to the orbit. That means roughly "sideways" from a line between the Sun and the planet.
use strength to move boulders into holes and skate away
Actually,as the planet Revolve and Rotate the path is an orbit....^_^
I'm not sure, but I think you're looking for "orbit."
During the course of its entire elliptical path around the sun,my planet averages about 93 million miles distant from it.Knowing that, can you guess which planet I live on ?Your planet is"Earth". That's the same as mine.
Its Orbit.Johannes Kepler (Germany), who lived between the time of Copernicus (Poland) and Isaac Newton (England), correctly postulated that all of the sun's planets indeed revolve about the sun in orbits which have the shape of an ellipse, with the sun at one focus of the ellipse. Isaac Newton, in his Principiae Mathematica, further stated, essentially, that any planet orbiting any star, or any moon orbiting any planet, would follow an elliptical path.
The temperature of planets can vary depending on the path of their orbit around the sun. The closer the planet is to the sun - such as Mercury - the hotter the planet is. And because that planet is so hot, it actually has no ozone layer. As you gradually get further away from the sun, the colder the planets become. Pluto is the coldest planet (or sub planet) because of how far it is away from the sun. It goes over -260 degrees! Planets in the middle (AKA the Rocky Planets) are ranged from warm to high, going from Venus to Neptune . Also, the biggest planet it's possible to stand on is Jupiter, and if you stood on it, you would weigh twice as much because of the amount of Gravity on there.
The force of gravity pulls the planet towards the Sun and this is balanced by the planet's "centrifugal force" away from the Sun. (Centrifugal force is called a "fictitious force" in physics. It's a mathematical way of representing the planet's tendency to move in a straight line path. Some people prefer to talk about the planet's "inertia" rather than centrifugal force.)
The more distant the orbit, the longer the year.