Asteroids, comets, minor or dwarf planets, and even some artificial spacecraft orbit the Sun but are not considered true planets.
The moon orbits the Earth. Venus and Mercury are the planets that are closer to the Sun than the Earth is.
No. The planets orbit the Sun and the Sun orbits itself.
Elliptical orbits of the planets around the sun actually match what we observe. Newton's Theory of Universal Gravitation states that planets will move around the sun in elliptical orbits.
The Sun. There are 8 bodies classified as planets, and as of 2009 there are 5 classed as dwarf planets. There are many more objects with long orbits past that of Pluto, and these are being studied and classified.
The sun's gravity holds the planets in their orbits. It also holds other space objects in their orbits, such as asteroids.
the planets
PLANETS
Gravity from the Sun holds the planets in their orbits.
Different planets have different length orbits because they are at varying distances from the sun. The farther a planet is from the sun, the longer it takes to complete an orbit. This is due to the gravitational pull of the sun, which affects the speed at which planets travel around it.
PLANETS
Gravity
Planets are held in their orbits by the gravitational force exerted by the sun. This force is what allows planets to stay in motion around the sun without flying off into space or falling into the sun.