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- IAU_definition_of_planet abstract "The definition of planet set in Prague in 2006 by the International Astronomical Union (IAU) states that, in the Solar System, a planet is a celestial body which: is in orbit around the Sun, has sufficient mass to assume hydrostatic equilibrium (a nearly round shape), and has "cleared the neighbourhood" around its orbit.A non-satellite body fulfilling only the first two of these criteria is classified as a "dwarf planet". According to the IAU, "planets and dwarf planets are two distinct classes of objects". A non-satellite body fulfilling only the first criterion is termed a "small Solar System body" (SSSB). Initial drafts planned to include dwarf planets as a subcategory of planets, but because this could potentially have led to the addition of several dozens of planets into the Solar System, this draft was eventually dropped. The definition was a controversial one and has drawn both support and criticism from different astronomers, but has remained in use.According to the definition, there are currently eight planets and five dwarf planets known in the Solar System. The definition distinguishes planets from smaller bodies and is not useful outside the Solar System, where smaller bodies cannot be found yet. Extrasolar planets, or exoplanets, are covered separately under a complementary 2003 draft guideline for the definition of planets, which distinguishes them from dwarf stars, which are larger.".
- IAU_definition_of_planet thumbnail SolarSystemBodies.png?width=300.
- IAU_definition_of_planet wikiPageExternalLink media-stream-archive.php.
- IAU_definition_of_planet wikiPageExternalLink eightplanets.
- IAU_definition_of_planet wikiPageExternalLink iau0603.
- IAU_definition_of_planet wikiPageExternalLink iau0601_q_answers.doc.
- IAU_definition_of_planet wikiPageExternalLink 060816_planet_qanda.html.
- IAU_definition_of_planet wikiPageID "6502961".
- IAU_definition_of_planet wikiPageRevisionID "606773799".
- IAU_definition_of_planet hasPhotoCollection IAU_definition_of_planet.
- IAU_definition_of_planet subject Category:2006_in_science.
- IAU_definition_of_planet subject Category:Articles_with_images_not_understandable_by_color_blind_users.
- IAU_definition_of_planet subject Category:Definition_of_planet.
- IAU_definition_of_planet subject Category:Dwarf_planets.
- IAU_definition_of_planet subject Category:History_of_astronomy.
- IAU_definition_of_planet subject Category:Planets.
- IAU_definition_of_planet subject Category:Pluto's_planethood.
- IAU_definition_of_planet type CelestialBody109239740.
- IAU_definition_of_planet type DwarfPlanets.
- IAU_definition_of_planet type NaturalObject100019128.
- IAU_definition_of_planet type Object100002684.
- IAU_definition_of_planet type PhysicalEntity100001930.
- IAU_definition_of_planet type Planet109394007.
- IAU_definition_of_planet type Planets.
- IAU_definition_of_planet type Whole100003553.
- IAU_definition_of_planet comment "The definition of planet set in Prague in 2006 by the International Astronomical Union (IAU) states that, in the Solar System, a planet is a celestial body which: is in orbit around the Sun, has sufficient mass to assume hydrostatic equilibrium (a nearly round shape), and has "cleared the neighbourhood" around its orbit.A non-satellite body fulfilling only the first two of these criteria is classified as a "dwarf planet".".
- IAU_definition_of_planet label "Définition des planètes de l'UAI".
- IAU_definition_of_planet label "IAU definition of planet".
- IAU_definition_of_planet label "IAU的行星定义".
- IAU_definition_of_planet label "Redefinición de planeta de 2006".
- IAU_definition_of_planet label "Redefinição do termo planeta em 2006".
- IAU_definition_of_planet label "XXVI Ассамблея Международного астрономического союза".
- IAU_definition_of_planet label "国際天文学連合による惑星の定義".
- IAU_definition_of_planet sameAs Redefinición_de_planeta_de_2006.
- IAU_definition_of_planet sameAs Définition_des_planètes_de_l'UAI.
- IAU_definition_of_planet sameAs 国際天文学連合による惑星の定義.
- IAU_definition_of_planet sameAs Redefinição_do_termo_planeta_em_2006.
- IAU_definition_of_planet sameAs Q2361306.
- IAU_definition_of_planet sameAs Q2361306.
- IAU_definition_of_planet sameAs IAU_definition_of_planet.
- IAU_definition_of_planet wasDerivedFrom IAU_definition_of_planet?oldid=606773799.
- IAU_definition_of_planet depiction SolarSystemBodies.png.
- IAU_definition_of_planet homepage iau0601_q_answers.doc.
- IAU_definition_of_planet isPrimaryTopicOf IAU_definition_of_planet.