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- Solar_System abstract "The Solar System consists of the Sun and the objects that orbit it, whether they orbit it directly or by orbiting other objects that orbit it directly. Of those objects that orbit the Sun directly, the largest eight are the planets that form the planetary system around it, while the remainder are significantly smaller objects, such as dwarf planets and small Solar System bodies (SSSBs) such as comets and asteroids.The Solar System formed 4.6 billion years ago from the gravitational collapse of a giant molecular cloud. The vast majority of the system's mass is in the Sun, with most of the remaining mass contained in Jupiter. The four smaller inner planets, Mercury, Venus, Earth and Mars, also called the terrestrial planets, are primarily composed of rock and metal. The four outer planets, called the gas giants, are substantially more massive than the terrestrials. The two largest, Jupiter and Saturn, are composed mainly of hydrogen and helium; the two outermost planets, Uranus and Neptune, are composed largely of substances with relatively high melting points (compared with hydrogen and helium), called ices, such as water, ammonia and methane, and are often referred to separately as "ice giants". All planets have almost circular orbits that lie within a nearly flat disc called the ecliptic plane.The Solar System also contains regions populated by smaller objects. The asteroid belt, which lies between Mars and Jupiter, mostly contains objects composed, like the terrestrial planets, of rock and metal. Beyond Neptune's orbit lie the Kuiper belt and scattered disc, linked populations of trans-Neptunian objects composed mostly of ices. Within these populations are several dozen to more than ten thousand objects that may be large enough to have been rounded by their own gravity. Such objects are referred to as dwarf planets. Identified dwarf planets include the asteroid Ceres and the trans-Neptunian objects Pluto and Eris. In addition to these two regions, various other small-body populations, including comets, centaurs and interplanetary dust, freely travel between regions. Six of the planets, at least three of the dwarf planets, and many of the smaller bodies are orbited by natural satellites, usually termed "moons" after Earth's Moon. Each of the outer planets is encircled by planetary rings of dust and other small objects.The solar wind, a flow of plasma from the Sun, creates a bubble in the interstellar medium known as the heliosphere, which extends out to the edge of the scattered disc. The Oort cloud, which is believed to be the source for long-period comets, may also exist at a distance roughly a thousand times further than the heliosphere. The heliopause is the point at which pressure from the solar wind is equal to the opposing pressure of interstellar wind. The Solar System is located within one of the outer arms of the Milky Way, which contains about 200 billion stars.".
- Solar_System thumbnail Planets2013.jpg?width=300.
- Solar_System wikiPageExternalLink Development_of_the_Solar_System.
- Solar_System wikiPageExternalLink index.cfm.
- Solar_System wikiPageExternalLink profile.cfm?Object=SolarSys&Display=Overview.
- Solar_System wikiPageExternalLink space.jpl.nasa.gov.
- Solar_System wikiPageExternalLink solar_system.
- Solar_System wikiPageID "26903".
- Solar_System wikiPageRevisionID "606752012".
- Solar_System age "1.441551168E17".
- Solar_System align "right".
- Solar_System caption "Position of the Solar System within the Milky Way".
- Solar_System comets "3263".
- Solar_System direction "horizontal".
- Solar_System footer "Solar System showing the plane of Earth's orbit around the Sun in 3D. Mercury, Venus, Earth, and Mars are shown in both panels; the right panel also shows Jupiter making one full revolution with Saturn and Uranus making less than one full revolution.".
- Solar_System frostline "≈5 AU".
- Solar_System galacticcenter "27000".
- Solar_System hasPhotoCollection Solar_System.
- Solar_System heliopause "≈120 AU".
- Solar_System hillsphere "≈1–2 ly".
- Solar_System image "259200.0".
- Solar_System image "Solarsystem3DJupiter.gif".
- Solar_System inclination "60.19".
- Solar_System kuiperCliff "50.0".
- Solar_System minorplanets "638836".
- Solar_System noknownPlanets "yes".
- Solar_System noknownStars "yes".
- Solar_System orbitalperiod "225".
- Solar_System orbitalspeed "220.0".
- Solar_System outerplanetname Neptune.
- Solar_System roundsat "19".
- Solar_System roundsatlink "List of gravitationally rounded objects of the Solar System#Satellite planemos".
- Solar_System spectral G-type_main-sequence_star.
- Solar_System stars "1".
- Solar_System systemMass "1.0014".
- Solar_System title "Solar System".
- Solar_System width "197".
- Solar_System width "300".
- Solar_System subject Category:Planetary_science.
- Solar_System subject Category:Planetary_systems.
- Solar_System subject Category:Solar_System.
- Solar_System subject Category:Space_science.
- Solar_System comment "The Solar System consists of the Sun and the objects that orbit it, whether they orbit it directly or by orbiting other objects that orbit it directly.".
- Solar_System label "Sistema Solar".
- Solar_System label "Sistema Solar".
- Solar_System label "Sistema solare".
- Solar_System label "Solar System".
- Solar_System label "Sonnensystem".
- Solar_System label "Système solaire".
- Solar_System label "Układ Słoneczny".
- Solar_System label "Zonnestelsel".
- Solar_System label "Солнечная система".
- Solar_System label "المجموعة الشمسية".
- Solar_System label "太阳系".
- Solar_System label "太陽系".
- Solar_System sameAs Sluneční_soustava.
- Solar_System sameAs Sonnensystem.
- Solar_System sameAs Ηλιακό_σύστημα.
- Solar_System sameAs Sistema_Solar.
- Solar_System sameAs Eguzki-sistema.
- Solar_System sameAs Système_solaire.
- Solar_System sameAs Tata_Surya.
- Solar_System sameAs Sistema_solare.
- Solar_System sameAs 太陽系.
- Solar_System sameAs 태양계.
- Solar_System sameAs Zonnestelsel.
- Solar_System sameAs Układ_Słoneczny.
- Solar_System sameAs Sistema_Solar.
- Solar_System sameAs m.06p5g.
- Solar_System sameAs Mx4rvgEKQ5wpEbGdrcN5Y29ycA.
- Solar_System sameAs Q544.
- Solar_System sameAs Q544.
- Solar_System wasDerivedFrom Solar_System?oldid=606752012.
- Solar_System depiction Planets2013.jpg.
- Solar_System isPrimaryTopicOf Solar_System.