Drawing of our solar system
Drawing of our solar system
 
 
An astroid belt
An astroid belt
 
 
The four inner planets:  Mercury, Venus, Earth and Mars
The four inner planets: Mercury, Venus, Earth and Mars
 
 
The four outer planets:  Jupiter, Saturn, Uranus and Neptune
The four outer planets: Jupiter, Saturn, Uranus and Neptune
 
 
The Milky Way galaxy
The Milky Way galaxy
 
*Solar System*
Topic(s):   Solar System

Our sun is a medium sized star. It is the center of our solar system. The sun's gravity holds everything in the solar system together. Our solar system has planets, moons, dwarf planets, asteroids, meteors and comets. Everything orbits or moves around the sun.

There are eight planets that orbit the sun. Starting closest to the sun, the order of the planets is Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune.

Mercury, Venus, Earth and Mars are called the inner planets. The four inner planets are made mostly of rock. They are all small planets.

Jupiter, Saturn, Uranus and Neptune make up the outer planets. The four outer planets are made mostly of gas. They are giant-sized planets.

Our solar system has only one star or sun. It is part of a huge galaxy called the Milky Way. Scientists think there are 200,000,000,000 (two hundred billion) stars in the Milky Way!

Citation information

APA Style: Solar System. (2014, January). Retrieved from Facts4Me at http://www.facts4me.com

MLA Style: "Solar System." Facts4Me. Jan. 2014. http://www.facts4me.com.

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