Solar System
Eight planets' home
The Solar System is our cosmic neighborhood—the Sun and everything bound to it by gravity, including eight planets, their moons, dwarf planets like Pluto, and countless smaller objects.
The Solar System formed about 4.6 billion years ago.
When capitalized, it refers specifically to this system rather than solar systems in general. (Lowercase solar system is the generic term.)
Messenger god or planet
- VenusLove goddess, or planet
- EarthOur world
- MarsRed planet, war deity
- JupiterLargest solar system planet
Saturn · Uranus · Neptune · terrestrial · gas giant · ice giant · dwarf planet · Pluto
Sun-dominated space bubble
- photosphereStar's light-emitting surface
- chromosphereStellar atmospheric zone
- coronaStar's outermost atmosphere
- sunspotDark stellar surface region
prominence · fusion · hydrogen · helium · core · auroras · magnetosphere · heliopause
Orbiting celestial body
- lunarOf the moon
- TitanMythic giant or moon
- EuropaGalilean moon with subsurface ocean
- GanymedeJupiter's largest natural satellite
Callisto · Io · Enceladus · Triton · Charon · Phobos · Deimos · Miranda
Sun-orbiting rocky mass
- cometIcy orbiting body
- meteoroidSmall body in space
- asteroid beltPlanetary rubble orbit zone
- Kuiper beltDistant ring of frozen objects
Oort cloud · centaur · Vesta · tail · coma · nucleus · ice · dust
Mercury
Messenger god or planet
Jupiter · Saturn · Uranus · Neptune · terrestrial · gas giant · ice giant · dwarf planet · Pluto · Ceres
heliosphere
Sun-dominated space bubble
- photosphereStar's light-emitting surface
- chromosphereStellar atmospheric zone
- coronaStar's outermost atmosphere
sunspot · prominence · fusion · hydrogen · helium · core · auroras · magnetosphere · heliopause · termination shock
satellite
Orbiting celestial body
Ganymede · Callisto · Io · Enceladus · Triton · Charon · Phobos · Deimos · Miranda · Oberon
asteroid
Sun-orbiting rocky mass
- cometIcy orbiting body
- meteoroidSmall body in space
- asteroid beltPlanetary rubble orbit zone
Kuiper belt · Oort cloud · centaur · Vesta · tail · coma · nucleus · ice · dust · meteor shower
Solar Systemgalaxy
Gravitationally bound stellar mass
universe · Milky Way · cosmos · observable universe · supercluster