A '''solar system''' is composed of one or more stars and whatever matter ([[planet|planets]], rocks, dust) is gravitationally bound to them.

The solar system we know the most about is the one we live in, which has a
[[sun]], nine planets ([[Mercury]], [[Venus]], [[Earth]], [[Mars]],
[[Jupiter]], [[Saturn]], [[Uranus]], [[Neptune]] and [[Pluto]]), and their
[[moon]]s and [[ring system]]s. In addition, there are [[asteroid]]s,
[[comet]]s, [[trans-Neptunian objects]] and [[Kuiper Belt]] objects, a theorized [[Oort cloud]], and interplanetary [[dust]] and [[gas]].

<b>Solar system - Equatorial diameter (miles)</b>

* Mercury 3,031
* Venus 7,520
* Earth 7,926
* Mars 4,200
* Jupiter 88,700
* Saturn 74,600
* Uranus 31,570
* Neptune 30,200
* Pluto 1,900


<b>Solar system - Mass of planets in relation to the Earth's mass</b>
* Mercury 0.06
* Venus   0.82
* Earth   1.00
* Mars    0.11
* Jupiter 318.00
* Saturn  95.00
* Uranus  14.60
* Neptune 17.20
* Pluto   0.0017

/Talk
