The Solar System

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The Solar System consist of the Sun, and dwarf planets in orbit around the Sun.
Gravity provides the centripetal force needed to keep objects in .
There are also (moons) in orbit around most of the planets.
Comets and are also in orbit around the Sun.
There are planets in our solar system which take a different amount of to go around the Sun.
A single orbit is called the planet's , and the further out a planet is the longer its year takes.
There are many other smaller that orbit the Sun.
Three of these are Ceres, and Eris, known as 'the dwarf planets'.