This is our Solar System; formed about 4.6 billion year ago, it contains comets, planets, moons, etc. Our Solar System has 8 planets, in order from the closest to the Sun they are: Mercury, venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune.
|Planet name||Distance from the Sun in miles||Year Length||Day Length||Moons|
|Mercury||36 million||88 Earth days||59 Earth days||0|
|Venus||67 million||225 Earth days||243 Earth days||0|
|Earth||93 million||365 days||24 hours||1|
|Mars||142 million||697 Earth days||24 hours, 37 min.||2|
|Jupiter||484 million||12 Earth years||10 Earth hours||16|
|Saturn||888 million||29 Earth years||11 Earth hours||18|
|Uranus||1.78 billion||84 Earth years||17 Earth days||17|
|Neptune||2.8 billion||164 Earth years||16 Earth hours||16|
How big are the planets?
As shown in the picutre above the smallest planet is Mercury, which is also the closest to the Sun. Jupiter on the other hand is a huge compared to the rest.
right in the center of the solar system is the Sun, and all the planets are orbiting around it. Its a massive star, but compared to the rest of the universe. However it's big enough to fit about 1,000,000 Earths inside the Sun. Its roughly 92.96 million years old.