Exoplanet naming convention
The convention for naming exoplanets is an extension of the one used by the Washington Multiplicity Catalog (WMC) for multiple-star systems, and adopted by the International Astronomical Union.In fact, some stars (such as Kepler-11) have only received their names due to their inclusion in planet-search programs, previously only being referred to by their celestial coordinates.According to Hessman et al., the implicit system for exoplanet names "utterly failed with the discovery of circumbinary planets", and they state that it is unhelpful.[14] The planets so named were AEgir[a], Amateru, Arion, Arkas, Brahe, Dagon, Dimidium, Draugr, Dulcinea, Fortitudo, Galileo, Harriot, Hypatia, Janssen, Lipperhey, Majriti, Meztli, Orbitar, Phobetor, Poltergeist, Quijote, Rocinante, Saffar, Samh, Smertrios, Sancho, Spe, Tadmor, Taphao Kaew, Taphao Thong and Thestias.[15] Previously a few planets had received unofficial names: notably Osiris (HD 209458 b), Bellerophon (51 Pegasi b),[16] and Methuselah (PSR B1620-26 b).In 2019 the IAU gave every country in the world the chance to name an exoplanet and its host star via national competitions.
International Astronomical Unionexoplanetscircumbinary planetsstar systemsAlpha Centauri55 Cancri55 Cancri b55 Cancri c55 Cancri d55 Cancri e55 Cancri fHD 10180 jKepler-90ibinary star16 Cygni BbHD 178911 BbHD 41004 AbTau BoötisTau Boötis b51 Peg51 Peg bPSR 1257Kepler-11celestial coordinatesHW VirginisNN SerpentisparenthesesPSR B1620-26DP LeonisPSR B1620-26 bDP Leonis bKepler-16Kepler-16bList of proper names of exoplanetsNameExoWorldsAmateruDimidiumDraugrDulcineaFortitudoGalileoHarriotHypatiaJanssenLipperheyMajritiMeztliOrbitarPhobetorPoltergeistQuijoteRocinanteSaffarSmertriosSanchoTadmorTaphao KaewTaphao ThongThestiasUwinguHD 209458 b51 Pegasi bRoman numeralsCallistoligatureExtrasolar Planets EncyclopaediaBibcodePlanetDefinitionPlanetary scienceExoplanetExoplanet orbital and physical parametersMethods of detecting exoplanetsPlanetary systemPlanet-hosting starsTerrestrialCarbon planetCoreless planetDesert planetDwarf planetHycean planetIce planetIron planetLava planetOcean worldMega-EarthSub-EarthSuper-EarthGaseousEccentric JupiterMini-NeptuneHelium planetHot JupiterHot NeptuneGas giantIce giantSuper-JupiterSuper-NeptuneSuper-puffUltra-hot JupiterUltra-hot NeptuneBlanetBrown dwarfChthonian planetCircumbinary planetCircumtriple planetDisrupted planetDouble planetEcumenopolisEyeball planetGiant planetMesoplanetPlanemoPlanetesimalProtoplanetPulsar planetSub-brown dwarfSub-NeptuneToroidal planetUltra-cool dwarfUltra-short period planet (USP)Formation and evolutionAccretionAccretion diskAsteroid beltCircumplanetary disk