The Solar System refers to the Sun, the bodies orbiting it, and its gravitational influence. Thus the diameter of the Solar System would be 2 light years! Here is a list of some notable solar system objects, each ordered by mean distance.
- A planet is a body that orbits a star, as long as it is round in shape and has no other planets crossing its path.
- A dwarf planet is an object that is round but does have other planets crossing its orbit around the Sun. Most of them orbit in the Kuiper Belt.
- An asteroid is an object that is not round or has several other objects crossing its path. Most of them orbit in the asteroid belt between Mars and Jupiter.
- A comet is an asteroid-like object that emits a tail of water and gas behind it as it passes by the Sun. It also has an elliptical orbit. Most of them originate in the Oort Cloud.
- The Habitable Zone is the area around a star where the heat is balanced so that water can form. Thus, life can only exist in the Habitable Zone. For some reason, even though they are not habitable Mars and Venus accompany Earth in the official Habitable Zone.
- Astronomical Units (AU) is a term used in astronomy to measure distance. It represents the median distance between the Earth and the Sun, or $ 149 600 000 $ kilometers.
|Name||Planetary/Stellar Type||Average Distance from Sun||Picture|
|The Sun||G2 V||(N/A)|
|99942 Apophis||Asteroid||$ 0.92228 $ AU|
|Earth||Terrestrial, Habitable||1 AU|
|4 Vesta||Asteroid||2.36179 AU|
|951 Gaspra||2.435 AU|
|3 Juno||2.6707 AU|
|1 Ceres||Dwarf Planet
|2 Pallas||2.77160611 AU|
||Gas Giant||5.2026 AU|
|10199 Chariklo||Asteroid||15.777 AU|
|Halley's Comet||Comet||17.8 AU|
||Ice Giant||19.2184 AU|
||Dwarf Planet||39.54 AU|
||Dwarf Planet||43.218 AU|
||Dwarf Planet||45.715 AU|
||Dwarf Planet||67.781 AU|
|90377 Sedna||Dwarf Planet||506.2 AU|
|Planet Nine||Ice Giant||700 AU|
|Nibiru (hypothetical)||variable (Ice Giant, Rouge Planet, Brown Dwarf, Red Dwarf)||unknown|