. "Un planeta extrasolar o exoplaneta \u00E9s un planeta que orbita al voltant de qualsevol estrella que no sigui el Sol i, per tant, forma part de sistemes planetaris que no \u00E9s el sistema solar. Tot i que se'n sospitava l'exist\u00E8ncia des de feia temps, no es van comen\u00E7ar a descobrir fins a la d\u00E8cada de 1990, gr\u00E0cies a la millora en les t\u00E8cniques de detecci\u00F3. El primer planeta extrasolar descobert orbitant una estrella de la seq\u00FC\u00E8ncia principal va ser 51 Pegasi b, descobert el 1995 per Michel Mayor i Didier Queloz de l'Observatori de Ginebra. Aquest planeta t\u00E9 una massa comparable a la de J\u00FApiter. Des de llavors, m\u00E9s d'un centenar de planetes han estat descoberts per diferents grups internacionals."@ca . . . . "Planet luar surya, atau eksoplanet, adalah planet di luar Tata Surya. Sampai dengan 1 September 2021, terdapat 4.834 planet terkonfirmasi di dalam 3.572 sistem keplanetan, 795 di antaranya memiliki lebih dari satu planet. Sebagian besar telah terdeteksi melalui metode pengamatan langsung kecepatan radial (radial velocity) dan metode-metode lainnya selain penginderaan. Kebanyakan dari planet yang telah ditemukan tersebut adalah planet raksasa besar seperti Jupiter, bukan planet kecil yang padat dikarenakan keterbatasan dalam teknologi deteksi. Berdasarkan proyeksi pendeteksian terkini, planet-planet yang jauh lebih kecil, ringan, dan berbatu akhirnya akan melebihi jumlah planet gas raksasa luar surya. Planet-planet luar surya menjadi subjek penelitian ilmiah di pertengahan abad ke-19. Banyak astronom menduga bahwa planet-planet tersebut ada, tetapi mereka tidak tahu seberapa banyak planet-planet tersebut, atau semirip apa dengan planet-planet di Tata Surya. Deteksi pertama yang dikonfirmasi adalah melalui metode kecepatan radial dilakukan pada tahun 1995, yang menyatakan bahwa terdapat planet gas raksasa di sekitar bintang 51 Pegasi yang termasuk ke dalam bintang Kelas G. Frekuensi deteksi dengan metode tersebut cenderung meningkat sejak itu. Diperkirakan sedikitnya 10% dari bintang seperti matahari terdapat planet-planet, dan jumlah yang sebenarnya mungkin lebih banyak. Penemuan planet-planet ekstrasurya mempertegas pertanyaan apakah terdapat kehidupan pada beberapa planet ekstrasurya tersebut. Saat ini Gliese 581 d, planet ketiga dari bintang katai merah Gliese 581 (sekitar 20 tahun cahaya dari Bumi), tampaknya merupakan contoh terbaik dari kemungkinan wilayah eksoplanet yang mengorbit dekat dengan zona sekitar bintang atau mataharinya. Meskipun Gliese 581 d tampaknya berada di luar apa yang disebut \"zona layak huni\", perhitungan selanjutnya kembali menegaskan posisinya."@in . . . . . . . . . . . . . . . . . . . . "Planeta pozas\u0142oneczna"@pl . . "Exoplaneta"@eu . "Exoplanet populations"@en . . . . "False-color, star-subtracted, direct image using a vortex coronagraph of 3 exoplanets around star HR8799"@en . . . . . . . . . . . . . . . . "Exoplanet populations \u2013 June 2017"@en . . . . . . . . . . . . . . "Um exoplaneta ou planeta extrassolar \u00E9 um planeta fora do Sistema Solar. A primeira evid\u00EAncia poss\u00EDvel de um exoplaneta foi observada em 1917, mas n\u00E3o foi reconhecida como tal. A primeira confirma\u00E7\u00E3o da detec\u00E7\u00E3o ocorreu em 1992. Um planeta diferente, detectado inicialmente em 1988, foi confirmado em 2003. Desde 30 de junho de 2022, existem 5108 confirmados em 3779 sistemas planet\u00E1rios, com 826 sistemas com mais de um exoplaneta."@pt . . . . . . . . . . . . . . . . . . . "Hubble image of brown dwarf 2MASS J044144 and its 5\u201310 Jupiter-mass companion, before and after star-subtraction"@en . . "Exoplaneet"@nl . . . . . . . . . . . . . . . . . . "SmallPlanetsComeInTwoSizes-20170619.png"@en . . . "\u0415\u043A\u0437\u043E\u043F\u043B\u0430\u043D\u0435\u0301\u0442\u0430 (\u0434\u0430\u0432.-\u0433\u0440. \u03B5\u03BE\u03C9, exo \u2014 \u043F\u043E\u0437\u0430, \u0437\u0437\u043E\u0432\u043D\u0456) \u0430\u0431\u043E \u043F\u043E\u0437\u0430\u0441\u043E\u0301\u043D\u0446\u0435\u0432\u0430 \u043F\u043B\u0430\u043D\u0435\u0301\u0442\u0430 \u2014 \u043F\u043B\u0430\u043D\u0435\u0442\u0430, \u044F\u043A\u0430 \u043F\u043B\u0438\u043D\u0435 \u043A\u043E\u0441\u043C\u0456\u0447\u043D\u0438\u043C \u043F\u0440\u043E\u0441\u0442\u043E\u0440\u043E\u043C, \u0430\u0431\u043E \u043E\u0431\u0435\u0440\u0442\u0430\u0454\u0442\u044C\u0441\u044F \u043D\u0430\u0432\u043A\u043E\u043B\u043E \u044F\u043A\u043E\u0457\u0441\u044C \u0437\u043E\u0440\u0456, \u0430\u043B\u0435 \u043D\u0435 \u043D\u0430\u0448\u043E\u0433\u043E \u0421\u043E\u043D\u0446\u044F."@uk . . . . . "\u042D\u043A\u0437\u043E\u043F\u043B\u0430\u043D\u0435\u0442\u0430"@ru . . . . . . . . . . . . "\u0395\u03BE\u03C9\u03B7\u03BB\u03B9\u03B1\u03BA\u03CC\u03C2 \u03C0\u03BB\u03B1\u03BD\u03AE\u03C4\u03B7\u03C2 \u03AE \u03B5\u03BE\u03C9\u03C0\u03BB\u03B1\u03BD\u03AE\u03C4\u03B7\u03C2 \u03BF\u03BD\u03BF\u03BC\u03AC\u03B6\u03B5\u03C4\u03B1\u03B9 \u03BA\u03AC\u03B8\u03B5 \u03C0\u03BB\u03B1\u03BD\u03AE\u03C4\u03B7\u03C2 \u03C0\u03BF\u03C5 \u03B4\u03B5\u03BD \u03B1\u03BD\u03AE\u03BA\u03B5\u03B9 \u03C3\u03C4\u03BF \u03B4\u03B9\u03BA\u03CC \u03BC\u03B1\u03C2 \u03B7\u03BB\u03B9\u03B1\u03BA\u03CC \u03C3\u03CD\u03C3\u03C4\u03B7\u03BC\u03B1, \u03B4\u03B5\u03BD \u03C0\u03B5\u03C1\u03B9\u03C6\u03AD\u03C1\u03B5\u03C4\u03B1\u03B9 \u03B4\u03B7\u03BB\u03B1\u03B4\u03AE \u03B3\u03CD\u03C1\u03C9 \u03B1\u03C0\u03CC \u03C4\u03BF\u03BD \u0389\u03BB\u03B9\u03BF. \u039C\u03AD\u03C7\u03C1\u03B9 \u03C4\u03B7 \u03B4\u03B5\u03BA\u03B1\u03B5\u03C4\u03AF\u03B1 \u03C4\u03BF\u03C5 1990 \u03BF\u03B9 \u03C0\u03BB\u03B1\u03BD\u03AE\u03C4\u03B5\u03C2 \u03B1\u03C5\u03C4\u03BF\u03AF \u03AE\u03C4\u03B1\u03BD \u03B1\u03C0\u03BF\u03BA\u03BB\u03B5\u03B9\u03C3\u03C4\u03B9\u03BA\u03AC \u03B8\u03AD\u03BC\u03B1 \u03C4\u03C9\u03BD \u03B8\u03B5\u03C9\u03C1\u03B7\u03C4\u03B9\u03BA\u03CE\u03BD \u03C4\u03B7\u03C2 \u03BA\u03B1\u03B9 \u03C4\u03C9\u03BD \u03C3\u03C5\u03B3\u03B3\u03C1\u03B1\u03C6\u03AD\u03C9\u03BD \u03B5\u03C0\u03B9\u03C3\u03C4\u03B7\u03BC\u03BF\u03BD\u03B9\u03BA\u03AE\u03C2 \u03C6\u03B1\u03BD\u03C4\u03B1\u03C3\u03AF\u03B1\u03C2. \u0397 \u03CD\u03C0\u03B1\u03C1\u03BE\u03AE \u03C4\u03BF\u03C5\u03C2 \u03AE \u03BC\u03B7, \u03AE\u03C4\u03B1\u03BD \u03B1\u03C0\u03CC \u03BA\u03B1\u03B9\u03C1\u03CC \u03AD\u03BD\u03B1 \u03B1\u03C0\u03CC \u03C4\u03B1 \u03BC\u03B5\u03B3\u03B1\u03BB\u03CD\u03C4\u03B5\u03C1\u03B1 \u03B6\u03B7\u03C4\u03AE\u03BC\u03B1\u03C4\u03B1 \u03C4\u03B7\u03C2 \u03B1\u03C3\u03C4\u03C1\u03BF\u03BD\u03BF\u03BC\u03AF\u03B1\u03C2, \u03CC\u03BC\u03C9\u03C2 \u03B4\u03B5\u03BD \u03C5\u03C0\u03AE\u03C1\u03C7\u03B1\u03BD \u03C4\u03B5\u03C7\u03BD\u03B9\u03BA\u03AC \u03BC\u03AD\u03C3\u03B1 \u03BC\u03B5 \u03B1\u03C1\u03BA\u03B5\u03C4\u03AE \u03B9\u03C3\u03C7\u03CD \u03B3\u03B9\u03B1 \u03BD\u03B1 \u03B5\u03BD\u03C4\u03BF\u03C0\u03B9\u03C3\u03C4\u03BF\u03CD\u03BD. \u039F\u03B9 \u03B1\u03BD\u03B1\u03BA\u03B1\u03BB\u03CD\u03C8\u03B5\u03B9\u03C2 \u03CC\u03BC\u03C9\u03C2 \u03C4\u03B7\u03C2 \u03B4\u03B5\u03BA\u03B1\u03B5\u03C4\u03AF\u03B1\u03C2 \u03C4\u03BF\u03C5 1990 \u03AC\u03BB\u03BB\u03B1\u03BE\u03B1\u03BD \u03C1\u03B9\u03B6\u03B9\u03BA\u03AC \u03C4\u03BF \u03C3\u03BA\u03B7\u03BD\u03B9\u03BA\u03CC: \u03A4\u03BF 1992 \u03B1\u03BD\u03B1\u03BA\u03B1\u03BB\u03CD\u03C6\u03B8\u03B7\u03BA\u03B1\u03BD \u03BF\u03B9 \u03C0\u03C1\u03CE\u03C4\u03BF\u03B9 \u03C4\u03AD\u03C4\u03BF\u03B9\u03BF\u03B9 \u03C0\u03BB\u03B1\u03BD\u03AE\u03C4\u03B5\u03C2, \u03BD\u03B1 \u03C0\u03B5\u03C1\u03B9\u03C6\u03AD\u03C1\u03BF\u03BD\u03C4\u03B1\u03B9 \u03B3\u03CD\u03C1\u03C9 \u03B1\u03C0\u03CC \u03C4\u03BF\u03BD \u03C0\u03AC\u03BB\u03C3\u03B1\u03C1 , \u03B1\u03C0\u03CC \u03C4\u03BF\u03C5\u03C2 \u0391\u03BB\u03B5\u03BA\u03C3\u03AC\u03BD\u03C4\u03B5\u03C1 \u0392\u03CC\u03BB\u03C3\u03C4\u03B1\u03BD \u03BA\u03B1\u03B9 Frail. \u03A4\u03BF 1995 \u03B1\u03BD\u03B1\u03BA\u03B1\u03BB\u03CD\u03C6\u03B8\u03B7\u03BA\u03B1\u03BD \u03BF\u03B9 \u03C0\u03C1\u03CE\u03C4\u03BF\u03B9 \u03B5\u03BE\u03C9\u03B7\u03BB\u03B9\u03B1\u03BA\u03BF\u03AF \u03C0\u03BB\u03B1\u03BD\u03AE\u03C4\u03B5\u03C2 \u03B3\u03CD\u03C1\u03C9 \u03B1\u03C0\u03CC \u03AD\u03BD\u03B1 \u03C3\u03C5\u03BD\u03B7\u03B8\u03B9\u03C3\u03BC\u03AD\u03BD\u03BF \u03B1\u03C3\u03C4\u03AD\u03C1\u03B1 \u03CC\u03C0\u03C9\u03C2 \u03BF \u0389\u03BB\u03B9\u03BF\u03C2 (\u03C4\u03BF\u03BD 51 \u03A0\u03B7\u03B3\u03AC\u03C3\u03BF\u03C5), \u03B1\u03C0\u03CC \u03C4\u03BF\u03C5\u03C2 \u039C\u03B9\u03C3\u03AD\u03BB \u039C\u03B1\u03B3\u03B9\u03CC\u03C1 \u03BA\u03B1\u03B9 \u039D\u03C4\u03B9\u03BD\u03C4\u03B9\u03AD \u039A\u03B5\u03BB\u03CC\u03B6, \u03BF\u03B9 \u03BF\u03C0\u03BF\u03AF\u03BF\u03B9 \u03B3\u03B9\u03B1 \u03B1\u03C5\u03C4\u03AE \u03C4\u03BF\u03C5"@el . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . "Ein Exoplanet (pr\u00E4ziser extrasolarer Planet) ist ein planetarer Himmelsk\u00F6rper au\u00DFerhalb (griechisch \u1F14\u03BE\u03C9) des vorherrschenden gravitativen Einflusses der Sonne, aber innerhalb des gravitativen Einflusses eines anderen Sterns oder Braunen Zwergs. Extrasolare Planeten geh\u00F6ren also nicht dem Sonnensystem, sondern anderen Planetensystemen an. Die gr\u00F6\u00DFten Objekte sind selbst Braune Zwerge. Daneben gibt es auch den Planeten \u00E4hnliche Himmelsk\u00F6rper, die keinen anderen Himmelsk\u00F6rper umrunden und unter den neu gepr\u00E4gten Oberbegriff Planemo (von englisch planetary mass object) fallen, wobei Stand Ende 2016 kein Konsens dar\u00FCber besteht, ob und ggf. unter welchen Bedingungen diese auch als Exoplaneten zu bezeichnen sind.Sowohl Exoplaneten als auch diese \u201Efrei fliegenden bzw. vagabundierenden Planeten\u201C z\u00E4hlen zu den Objekten planetarer Masse."@de . . "\u0415\u043A\u0437\u043E\u043F\u043B\u0430\u043D\u0435\u0301\u0442\u0430 (\u0434\u0430\u0432.-\u0433\u0440. \u03B5\u03BE\u03C9, exo \u2014 \u043F\u043E\u0437\u0430, \u0437\u0437\u043E\u0432\u043D\u0456) \u0430\u0431\u043E \u043F\u043E\u0437\u0430\u0441\u043E\u0301\u043D\u0446\u0435\u0432\u0430 \u043F\u043B\u0430\u043D\u0435\u0301\u0442\u0430 \u2014 \u043F\u043B\u0430\u043D\u0435\u0442\u0430, \u044F\u043A\u0430 \u043F\u043B\u0438\u043D\u0435 \u043A\u043E\u0441\u043C\u0456\u0447\u043D\u0438\u043C \u043F\u0440\u043E\u0441\u0442\u043E\u0440\u043E\u043C, \u0430\u0431\u043E \u043E\u0431\u0435\u0440\u0442\u0430\u0454\u0442\u044C\u0441\u044F \u043D\u0430\u0432\u043A\u043E\u043B\u043E \u044F\u043A\u043E\u0457\u0441\u044C \u0437\u043E\u0440\u0456, \u0430\u043B\u0435 \u043D\u0435 \u043D\u0430\u0448\u043E\u0433\u043E \u0421\u043E\u043D\u0446\u044F."@uk . "En extrasol\u00E4r planet, eller exoplanet, \u00E4r en planet som befinner sig utanf\u00F6r v\u00E5rt eget solsystem. De f\u00F6rsta uppt\u00E4ckterna gjordes under 1990-talet. Den 5 november 2021 fanns 4 868 planeter i 3 597 solsystem registrerade. Den stora majoriteten uppt\u00E4cks genom flera olika indirekta metoder i st\u00E4llet f\u00F6r att observeras direkt och de flesta \u00E4r ocks\u00E5 massiva j\u00E4tteplaneter i Jupiters storleksklass, men vars sammans\u00E4ttning mer liknar de jordlika planeterna av sten och metall. Extrasol\u00E4ra planeter blev \u00E4mne f\u00F6r vetenskaplig unders\u00F6kning under 1850-talet. Astronomer trodde i och f\u00F6r sig allm\u00E4nt att de existerade, men det var inte k\u00E4nt hur vanliga eller hur lika de var planeterna i v\u00E5rt solsystem. De f\u00F6rsta bekr\u00E4ftade uppt\u00E4ckterna gjordes under 1990-talet. Under 2000-talet uppt\u00E4cktes flera hundra exoplaneter. I dagsl\u00E4get uppskattar man att minst 10 % av de solliknande stj\u00E4rnorna har planeter, men den verkliga andelen kan vara mycket st\u00F6rre. Uppt\u00E4ckten av exoplaneter aktualiserar ytterligare fr\u00E5gan huruvida n\u00E5gon av dessa kan uppr\u00E4tth\u00E5lla utomjordiskt liv. I b\u00F6rjan av 2010 verkade Gliese 581 d, den fj\u00E4rde planeten till den r\u00F6da dv\u00E4rgen Gliese 581 (ungef\u00E4r 20 ljus\u00E5r fr\u00E5n jorden), vara det b\u00E4sta exemplet p\u00E5 en stenig exoplanet som kretsar n\u00E4ra den beboeliga zonen runt sin stj\u00E4rna. Om man anv\u00E4nder strikta termer s\u00E5 \u00E4r den utanf\u00F6r Guldlocks zon, men det kan f\u00F6rh\u00E5lla sig s\u00E5 att v\u00E4xthuseffekten h\u00F6jer dess yttertemperatur s\u00E5 pass att den kan hysa flytande vatten. N\u00E4r exoplaneten Kepler-452b uppt\u00E4cktes 2015, var det den f\u00F6rsta planet uppt\u00E4ckt med n\u00E4mnda gynnsamma kriterier uppfyllda, som \u00E4ven kretsade kring en stj\u00E4rna lik v\u00E5r sol."@sv . . . "\u592A\u967D\u7CFB\u5916\u884C\u661F"@zh . . "\u592A\u967D\u7CFB\u5916\u60D1\u661F"@ja . . "Um exoplaneta ou planeta extrassolar \u00E9 um planeta fora do Sistema Solar. A primeira evid\u00EAncia poss\u00EDvel de um exoplaneta foi observada em 1917, mas n\u00E3o foi reconhecida como tal. A primeira confirma\u00E7\u00E3o da detec\u00E7\u00E3o ocorreu em 1992. Um planeta diferente, detectado inicialmente em 1988, foi confirmado em 2003. Desde 30 de junho de 2022, existem 5108 confirmados em 3779 sistemas planet\u00E1rios, com 826 sistemas com mais de um exoplaneta. Existem muitos m\u00E9todos de detec\u00E7\u00E3o de exoplanetas. A fotometria de tr\u00E2nsito e a espectroscopia Doppler foram as que mais encontraram, mas esses m\u00E9todos sofrem de um claro vi\u00E9s observacional que favorece a detec\u00E7\u00E3o de planetas pr\u00F3ximos \u00E0 estrela; assim, 85% dos exoplanetas detectados est\u00E3o dentro da zona de bloqueio de mar\u00E9. Em v\u00E1rios casos, v\u00E1rios planetas foram observados em torno de uma estrela. Cerca de 1 em cada 5 estrelas semelhantes ao Sol tem um planeta do \"tamanho da Terra\" na zona habit\u00E1vel. Supondo que existam 200 bilh\u00F5es de estrelas na Via L\u00E1ctea, pode-se supor que existam 11 bilh\u00F5es de planetas potencialmente habit\u00E1veis do tamanho da Terra na Via L\u00E1ctea, subindo para 40 bilh\u00F5es se os planetas orbitando as numerosas an\u00E3s vermelhas se forem inclu\u00EDdos. O conhecido \u00E9 Draugr (tamb\u00E9m conhecido como PSR B1257+12 A ou PSR B1257+12 b), que tem cerca de duas vezes a massa da Lua. O listado no NASA Exoplanet Archive \u00E9 , cerca de 30 vezes a massa de J\u00FApiter. No entanto, de acordo com algumas defini\u00E7\u00F5es de planeta (com base na fus\u00E3o nuclear de deut\u00E9rio), \u00E9 muito massivo para ser um planeta e pode ser uma an\u00E3 marrom. Os per\u00EDodos orbitais conhecidos para exoplanetas variam de algumas horas (para aqueles mais pr\u00F3ximos de sua estrela) a milhares de anos. Alguns exoplanetas est\u00E3o t\u00E3o longe da estrela que \u00E9 dif\u00EDcil dizer se est\u00E3o gravitacionalmente ligados a ela. Quase todos os planetas detectados at\u00E9 agora est\u00E3o dentro da Via L\u00E1ctea. No entanto, h\u00E1 evid\u00EAncias de que planetas extragal\u00E1cticos, exoplanetas mais distantes em gal\u00E1xias al\u00E9m da gal\u00E1xia local da Via L\u00E1ctea. Os est\u00E3o localizados a 4.2 anos-luz (1.3 parsecs) da Terra e orbitam Proxima Centauri, a estrela mais pr\u00F3xima do Sol. A descoberta de exoplanetas intensificou o interesse na busca por vida extraterrestre. H\u00E1 um interesse especial em planetas que orbitam na zona habit\u00E1vel de uma estrela, onde \u00E9 poss\u00EDvel que a \u00E1gua l\u00EDquida, um pr\u00E9-requisito para a vida na Terra, exista na superf\u00EDcie. No entanto, o estudo da habitabilidade planet\u00E1ria tamb\u00E9m considera uma ampla gama de outros fatores na determina\u00E7\u00E3o da adequa\u00E7\u00E3o de um planeta para abrigar vida. Planetas \u00F3rf\u00E3os s\u00E3o aqueles que n\u00E3o orbitam nenhuma estrela. Esses objetos s\u00E3o considerados uma categoria separada de planetas, especialmente se forem gigantes gasosos, muitas vezes contados como suban\u00E3s marrons. Os planetas \u00F3rf\u00E3os na Via L\u00E1ctea possivelmente chegam a bilh\u00F5es ou mais."@pt . . 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\u0627\u0644\u0623\u0633\u0627\u0633\u064A \u0644\u0644\u062D\u064A\u0627\u0629 . \u062A\u0623\u062E\u0630 \u062F\u0631\u0627\u0633\u0629 \u0642\u0627\u0628\u0644\u064A\u0629 \u0627\u0644\u062D\u064A\u0627\u0629 \u0639\u0644\u0649 \u0627\u0644\u0643\u0648\u0627\u0643\u0628 \u0623\u064A\u0636\u064B\u0627 \u0641\u064A \u0639\u064A\u0646 \u0627\u0644\u0627\u0639\u062A\u0628\u0627\u0631 \u0645\u062C\u0645\u0648\u0639\u0629 \u0643\u0628\u064A\u0631\u0629 \u0645\u0646 \u0627\u0644\u0639\u0648\u0627\u0645\u0644 \u0644\u062A\u062D\u062F\u064A\u062F \u0645\u0644\u0627\u0626\u0645\u0629 \u0627\u0644\u0643\u0648\u0643\u0628 \u0644\u0627\u0633\u062A\u0636\u0627\u0641\u0629 \u0627\u0644\u062D\u064A\u0627\u0629. \u0628\u0627\u0644\u0646\u0633\u0628\u0629 \u0644\u0644\u0643\u0648\u0627\u0643\u0628 \u0627\u0644\u0631\u0651\u062D\u0627\u0644\u0629 \u0641\u0647\u064A \u0644\u0627 \u062A\u062F\u0648\u0631 \u062D\u0648\u0644 \u0623\u064A \u0646\u062C\u0645. \u062A\u0639\u062A\u0628\u0631 \u0623\u062C\u0633\u0627\u0645 \u0643\u0647\u0630\u0647 \u0641\u0626\u0629 \u0645\u0646\u0641\u0635\u0644\u0629 \u0639\u0646 \u0627\u0644\u0643\u0648\u0627\u0643\u0628\u060C \u0648\u0628\u0634\u0643\u0644 \u062E\u0627\u0635 \u0625\u0646 \u0643\u0627\u0646\u062A \u0639\u0645\u0644\u0627\u0642\u0629 \u063A\u0627\u0632\u064A\u0629\u060C \u0648\u0627\u0644\u062A\u064A \u063A\u0627\u0644\u0628\u064B\u0627 \u0645\u0627 \u062A\u0639\u062A\u0628\u0631 \u0642\u0632\u0645\u064B\u0627 \u0634\u0628\u0647 \u0628\u0646\u064A. \u0645\u0646 \u0627\u0644\u0645\u062D\u062A\u0645\u0644 \u0623\u0646\u0651 \u0639\u062F\u062F \u0627\u0644\u0643\u0648\u0627\u0643\u0628 \u0627\u0644\u0631\u062D\u0627\u0644\u0629 \u0641\u064A \u0645\u062C\u0631\u0629 \u062F\u0631\u0628 \u0627\u0644\u062A\u0628\u0627\u0646\u0629 \u0642\u062F \u064A\u0635\u0644 \u0644\u0644\u0645\u0644\u064A\u0627\u0631\u0627\u062A \u0623\u0648 \u0623\u0643\u062B\u0631."@ar . "Exoplanet"@de . . . . "center"@en . "Une exoplan\u00E8te, ou plan\u00E8te extrasolaire, est une plan\u00E8te situ\u00E9e en dehors du Syst\u00E8me solaire. L'existence de plan\u00E8tes situ\u00E9es en dehors du Syst\u00E8me solaire est \u00E9voqu\u00E9e d\u00E8s le XVIe si\u00E8cle, mais ce n'est qu'au cours du XIXe si\u00E8cle que les exoplan\u00E8tes deviennent l'objet de recherches scientifiques. Beaucoup d'astronomes supposent qu'elles peuvent exister, mais aucun moyen technique d'observation ne permet de prouver leur existence. La distance, mais aussi le manque de luminosit\u00E9 de ces objets c\u00E9lestes si petits par rapport aux \u00E9toiles autour desquelles ils orbitent, rendaient leur d\u00E9tection impossible. Ce n'est que dans les ann\u00E9es 1990 que les premi\u00E8res exoplan\u00E8tes sont d\u00E9tect\u00E9es \u00E0 l'observatoire de Haute-Provence, de mani\u00E8re indirecte, puis, depuis 2004, de mani\u00E8re directe. La plupart des exo"@fr . . . "Exoplanet"@en . . . . . . "Exoplan\u00E8te"@fr . . . . . . . . . . . . . . . . . . . . . "Un planeta extrasolar o exoplaneta\u200B\u200B es un planeta que orbita una estrella diferente al Sol y que, por lo tanto, no pertenece al sistema solar. Los planetas extrasolares se convirtieron en objeto de investigaci\u00F3n cient\u00EDfica en el siglo XX. Muchos astr\u00F3nomos supon\u00EDan su existencia, pero carec\u00EDan de medios para identificarlos. La primera detecci\u00F3n confirmada se hizo en 1992, con el descubrimiento de varios planetas de masa terrestre orbitando el p\u00FAlsar Lich (Wolszczan).\u200B La primera detecci\u00F3n confirmada de un planeta extrasolar orbitando alrededor de una estrella de la secuencia principal (Dimidio), se hizo en 1995 por los astr\u00F3nomos Michel Mayor y Didier Queloz.\u200B Desde entonces el n\u00FAmero de hallazgos ha crecido a\u00F1o tras a\u00F1o, aunque su b\u00FAsqueda con fundamento cient\u00EDfico data, al menos, del a\u00F1"@es . "\u0643\u0648\u0643\u0628 \u062E\u0627\u0631\u062C \u0627\u0644\u0645\u062C\u0645\u0648\u0639\u0629 \u0627\u0644\u0634\u0645\u0633\u064A\u0629"@ar . "Une exoplan\u00E8te, ou plan\u00E8te extrasolaire, est une plan\u00E8te situ\u00E9e en dehors du Syst\u00E8me solaire. L'existence de plan\u00E8tes situ\u00E9es en dehors du Syst\u00E8me solaire est \u00E9voqu\u00E9e d\u00E8s le XVIe si\u00E8cle, mais ce n'est qu'au cours du XIXe si\u00E8cle que les exoplan\u00E8tes deviennent l'objet de recherches scientifiques. Beaucoup d'astronomes supposent qu'elles peuvent exister, mais aucun moyen technique d'observation ne permet de prouver leur existence. La distance, mais aussi le manque de luminosit\u00E9 de ces objets c\u00E9lestes si petits par rapport aux \u00E9toiles autour desquelles ils orbitent, rendaient leur d\u00E9tection impossible. Ce n'est que dans les ann\u00E9es 1990 que les premi\u00E8res exoplan\u00E8tes sont d\u00E9tect\u00E9es \u00E0 l'observatoire de Haute-Provence, de mani\u00E8re indirecte, puis, depuis 2004, de mani\u00E8re directe. La plupart des exoplan\u00E8tes d\u00E9couvertes \u00E0 ce jour orbitent autour d'\u00E9toiles situ\u00E9es \u00E0 moins de 400 ann\u00E9es-lumi\u00E8re du Syst\u00E8me solaire. Au 9 d\u00E9cembre 2022, 5 277 exoplan\u00E8tes ont \u00E9t\u00E9 confirm\u00E9es dans 3 908 syst\u00E8mes plan\u00E9taires, dont 826 syst\u00E8mes plan\u00E9taires multiples. Plusieurs milliers (pr\u00E8s de 9151) d'exoplan\u00E8tes suppl\u00E9mentaires d\u00E9couvertes au moyen de t\u00E9lescopes terrestres ou d'observatoires spatiaux, dont Kepler, sont en attente de confirmation. En extrapolant \u00E0 partir des d\u00E9couvertes d\u00E9j\u00E0 effectu\u00E9es, il existerait au moins 100 milliards de plan\u00E8tes rien que dans notre galaxie. Les m\u00E9thodes de d\u00E9tection utilis\u00E9es sont principalement la m\u00E9thode des vitesses radiales, qui d\u00E9duit la pr\u00E9sence d'une plan\u00E8te \u00E0 travers l'incidence de son attraction gravitationnelle sur la vitesse radiale de son \u00E9toile, et la m\u00E9thode du transit, qui identifie une plan\u00E8te lorsque celle-ci passe devant son \u00E9toile en mesurant l'affaiblissement de l'intensit\u00E9 lumineuse de l'astre. Un biais d\u00E9coulant de ces m\u00E9thodes a abouti \u00E0 la d\u00E9tection d'une majorit\u00E9 de plan\u00E8tes aux caract\u00E9ristiques tr\u00E8s diff\u00E9rentes de celles pr\u00E9sentes dans le Syst\u00E8me solaire, en particulier l'abondance de Jupiter chaud, plan\u00E8tes gazeuses tr\u00E8s proches de leur \u00E9toile h\u00F4te. Ces nouveaux types de plan\u00E8te ont n\u00E9anmoins entra\u00EEn\u00E9 une remise en cause radicale des mod\u00E8les de formation des syst\u00E8mes plan\u00E9taires qui avaient \u00E9t\u00E9 \u00E9labor\u00E9s en se basant sur le seul Syst\u00E8me solaire. Depuis que les m\u00E9thodes de d\u00E9tection se sont am\u00E9lior\u00E9es, les \u00E9tudes visent \u00E9galement \u00E0 mettre en \u00E9vidence des plan\u00E8tes aux caract\u00E9ristiques proches de celles de la Terre orbitant dans la zone habitable de leur \u00E9toile."@fr . . . "Ein Exoplanet (pr\u00E4ziser extrasolarer Planet) ist ein planetarer Himmelsk\u00F6rper au\u00DFerhalb (griechisch \u1F14\u03BE\u03C9) des vorherrschenden gravitativen Einflusses der Sonne, aber innerhalb des gravitativen Einflusses eines anderen Sterns oder Braunen Zwergs. Extrasolare Planeten geh\u00F6ren also nicht dem Sonnensystem, sondern anderen Planetensystemen an. Die gr\u00F6\u00DFten Objekte sind selbst Braune Zwerge."@de . . "200"^^ . . . . . . . "2"^^ . "Exoplanet"@sv . . 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"Pianeta extrasolare"@it . "Brown dwarf 2M J044144 and planet.jpg"@en . . . "An exoplanet or extrasolar planet is a planet outside the Solar System. The first possible evidence of an exoplanet was noted in 1917 but was not recognized as such. The first confirmation of detection occurred in 1992. A different planet, initially detected in 1988, was confirmed in 2003. As of 1 December 2022, there are 5,284 confirmed exoplanets in 3,899 planetary systems, with 847 systems having more than one planet."@en . . . "Exoplaneten zijn planeten die draaien om een andere ster dan de Zon. Het bestaan van deze planeten is voornamelijk afgeleid van indirecte waarnemingen en daarop gebaseerde berekeningen. Deze planeten werden voor het eerst ontdekt in de jaren 90, toen de technologie ver genoeg was gevorderd om telescopen te maken die hiervoor voldoende gevoelig waren. Er worden steeds meer exoplaneten ontdekt; op 1 december 2022 stond de teller op 5284 exoplaneten. Op dezelfde datum waren er 3899 planetenstelsels ontdekt. Tot dusver zijn er 847 planetenstelsels gevonden met meerdere exoplaneten in een baan rond \u00E9\u00E9n of twee sterren (dubbelsterstelsel); er zijn ook stelsels met meer dan twee sterren gevonden met slechts \u00E9\u00E9n exoplaneet, zoals 16 Cygni."@nl . "An exoplanet or extrasolar planet is a planet outside the Solar System. The first possible evidence of an exoplanet was noted in 1917 but was not recognized as such. The first confirmation of detection occurred in 1992. A different planet, initially detected in 1988, was confirmed in 2003. As of 1 December 2022, there are 5,284 confirmed exoplanets in 3,899 planetary systems, with 847 systems having more than one planet. There are many methods of detecting exoplanets. Transit photometry and Doppler spectroscopy have found the most, but these methods suffer from a clear observational bias favoring the detection of planets near the star; thus, 85% of the exoplanets detected are inside the tidal locking zone. In several cases, multiple planets have been observed around a star. About 1 in 5 Sun-like stars have an \"Earth-sized\" planet in the habitable zone. Assuming there are 200 billion stars in the Milky Way, it can be hypothesized that there are 11 billion potentially habitable Earth-sized planets in the Milky Way, rising to 40 billion if planets orbiting the numerous red dwarfs are included. The least massive exoplanet known is Draugr (also known as PSR B1257+12 A or PSR B1257+12 b), which is about twice the mass of the Moon. The most massive exoplanet listed on the NASA Exoplanet Archive is HR 2562 b, about 30 times the mass of Jupiter. However, according to some definitions of a planet (based on the nuclear fusion of deuterium), it is too massive to be a planet and might be a brown dwarf instead. Known orbital times for exoplanets vary from less than an hour (for those closest to their star) to thousands of years. Some exoplanets are so far away from the star that it is difficult to tell whether they are gravitationally bound to it. Almost all of the planets detected so far are within the Milky Way. However, there is evidence that extragalactic planets, exoplanets farther away in galaxies beyond the local Milky Way galaxy, may exist. The nearest exoplanets are located 4.2 light-years (1.3 parsecs) from Earth and orbit Proxima Centauri, the closest star to the Sun. The discovery of exoplanets has intensified interest in the search for extraterrestrial life. There is special interest in planets that orbit in a star's habitable zone (or sometimes called \"goldilocks zone\"), where it is possible for liquid water, a prerequisite for life as we know it, to exist on the surface. However, the study of planetary habitability also considers a wide range of other factors in determining the suitability of a planet for hosting life. Rogue planets are those that do not orbit any star. Such objects are considered a separate category of planets, especially if they are gas giants, often counted as sub-brown dwarfs. The rogue planets in the Milky Way possibly number in the billions or more."@en . . . "KeplerHabitableZonePlanets-20170616.png"@en . . . . . . . . . . . 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"Exoplaneta"@cs . . . . . . . . "bat eguzki sistematik kanpoko planeta bat da. 2022ko ekainaren 1ean, 5.059 exoplaneta baieztatu ziren 3.733 planeta-sistematan, eta horietatik 824k planeta bat baino gehiago dituzte. Ezagutzen diren exoplaneten tamaina aldatu egiten da: erraldoi gaseosoak, Jupiterren tamaina bikoizten dutenak, eta Ilargiaren tamaina apur bat handiagoa dutenak. Planeta horietako 100ek baino gehiagok Lurraren tamaina bera dute gutxi gorabehera, eta horietako bederatzik beren izarraren orbitatzen dute. 2011n, Kepler espazio teleskopioaren taldeak Lurraren tamainako lehen exoplaneten aurkikuntzaren berri eman zuen, baten inguruan orbitatzen dutenak, eta . 2012an egindako azterlan batean, grabitazio-mikrolenteen datuak aztertzen dira, eta kalkuluen arabera, Esne Bideko izar bakoitzeko 1,6 planeta daude, batez beste. 2013tik aurrera, eguzkiaren antzeko bost izarretik batek bere eremu bizigarrian Lurraren tamainako planeta bat duela uste da. 1992. urtearen hasieran, Aleksander Wolszczan eta irrati-astronomoek pulsarra orbitatuz bi planeta aurkitu zituztela iragarri zuten. Aurkikuntza hori berretsi egin zen, eta, oro har, exoplaneten behin betiko lehen detekziotzat hartzen da. Pulsarreko hiru planetak koplanarrak direnez eta neutroi izarrak batekin jaiotzen direnez, ikertzaileek susmoa dute pulsarrak planetak eratzeko bigarren erronda batean sortu zuen supernobako disko ezohiko batetik abiatuta sortu zirela, eta ez guraso-izarrak edo, agian, gainerako nukleo harritsuak sortu zirenean sortu ziren planetak eratzearen ondorioz. Exoplaneta baten lehen aurkikuntza baieztatua, sekuentzia nagusiko izar arrunt bat orbitatuz, 1995eko urriaren 6an gertatu zen, Genevako Unibertsitateko Michel Mayorrek eta Didier Quelozek inguruko exoplaneta baten detekzioa iragarri zutenean. Ordutik Kepler misiora arte, ezagutzen ziren exoplaneta gehienak Jupiterren antzeko masa zuten gasezko erraldoiak edo handiagoak ziren, errazago antzematen baitziren. Kepler misiorako hautagai diren planeten katalogoa Neptunoren tamainako planetek eta txikiek osatzen dute nagusiki, Merkurio baino txikiagoak izan arte. Eguzki Sisteman existitzen ez diren planeta motak daude: eta , Lurra edo Neptuno bezalako lurrunkorren eta gasaren nahasketa bat bezalako harritsuak izan daitezkeenak; gaur egun, bien arteko banaketa-lerroa Lurraren masaren bikoitzaren inguruan gertatzen dela uste da. Badira Jupiter beroak beren izarretik oso gertu orbitatzen dutenak eta bihurtzeko lurrundu daitezkeenak, horiek baitira soberan dauden nukleoak. Eguzkiaren antzeko 5 izarretik batek, gutxi gorabehera, Lurraren tamainako planeta bat du eremu bizigarrian; beraz, gertuen dagoena Lurretik 12 argi-urtera egotea espero da. Lurreko planeta horien agerpen-maiztasuna Drakeren ekuazioaren aldagaietako bat da, Esne Bidean dauden zibilizazio adimendunen eta komunikatzaileen kopurua zenbatesten baitu. Badira exoplanetak bere izar amarengandik Eguzki Sistemako edozein planeta baino askoz hurbilago daudenak, eta badira bere izarretik askoz urrunago dauden exoplanetak ere. Merkuriok, Eguzkitik hurbilen dagoen planetak, 0,4 UA-ra, 88 egun behar ditu orbita bat egiteko, baina exoplanetetan ezagutzen diren orbita laburrenek ordu batzuk baino ez dituzte behar, dira. sistemak bere planetetako bost ditu Merkuriorenak baino orbita laburragoetan, guztiak hau baino askoz masiboagoak. Neptuno Eguzkitik 30 UAra dago eta 165 urte behar ditu orbitatzeko, baina badira bere izarretik milaka UA-ra dauden exoplanetak, eta milioi bat urte baino gehiago behar dituzte orbitarako. adibidez, ."@eu . . . . . . 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"Kepler habitable zone planets"@en . "Planet luar surya"@in . . . . . . . . "Small planets come in two sizes"@en . . "vertical"@en . "Pl\u00E1in\u00E9ad a fhithis\u00EDonn r\u00E9alta taobh amuigh den Ghrianch\u00F3ras. D'fhionn Michael Mayor is Didier Queloz \u00F3n nGin\u00E9iv an ch\u00E9ad cheann, i bhfithis timpeall ar 51 Pegasi, i 1995. Fionnadh tuilleadh i 1996, i bhfithis\u00ED thart ar 70 Virginis, 47 Utsaa Rajoris, is 55 Cancri, agus tuilleadh f\u00F3s \u00F3 shin."@ga . . . . . . 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"right"@en . "Un planeta extrasolar o exoplaneta\u200B\u200B es un planeta que orbita una estrella diferente al Sol y que, por lo tanto, no pertenece al sistema solar. Los planetas extrasolares se convirtieron en objeto de investigaci\u00F3n cient\u00EDfica en el siglo XX. Muchos astr\u00F3nomos supon\u00EDan su existencia, pero carec\u00EDan de medios para identificarlos. La primera detecci\u00F3n confirmada se hizo en 1992, con el descubrimiento de varios planetas de masa terrestre orbitando el p\u00FAlsar Lich (Wolszczan).\u200B La primera detecci\u00F3n confirmada de un planeta extrasolar orbitando alrededor de una estrella de la secuencia principal (Dimidio), se hizo en 1995 por los astr\u00F3nomos Michel Mayor y Didier Queloz.\u200B Desde entonces el n\u00FAmero de hallazgos ha crecido a\u00F1o tras a\u00F1o, aunque su b\u00FAsqueda con fundamento cient\u00EDfico data, al menos, del a\u00F1o 1959. El primer congreso nacional e internacional sobre planetas extrasolares en Espa\u00F1a, fue en marzo de 1997, en el Puerto de la Cruz, Tenerife, Islas Canarias, Espa\u00F1a. Organizado por el Instituto de Astrof\u00EDsica de Canarias (IAC). Hasta el 2 de julio de 2020 se han descubierto 3092 sistemas planetarios que contienen un total de 4171 cuerpos planetarios, 671 de estos sistemas son m\u00FAltiples y 155 de estos planetas est\u00E1n por encima de las 13 MJ (1 MJ es la masa de J\u00FApiter) por lo que muy probablemente sean enanas marrones.\u200B\u200B La mayor\u00EDa de planetas extrasolares conocidos son gigantes gaseosos igual o m\u00E1s masivos que el planeta J\u00FApiter, con \u00F3rbitas muy cercanas a su estrella y per\u00EDodos orbitales muy cortos, tambi\u00E9n conocidos como jupiteres calientes. Sin embargo, se cree que ello es resultado de sesgo de informaci\u00F3n creado por los m\u00E9todos actuales de detecci\u00F3n, que encuentran m\u00E1s f\u00E1cilmente a planetas de este tama\u00F1o que a planetas terrestres m\u00E1s peque\u00F1os. Con todo, exoplanetas comparables al nuestro empiezan a ser detectados, conforme las capacidades de detecci\u00F3n y el tiempo de estudio aumentan. El primer sistema extrasolar descubierto con m\u00E1s de un planeta fue Upsilon Andromedae. De acuerdo con la actual definici\u00F3n de \"planeta\", un planeta tiene que orbitar una estrella.\u200B Sin embargo, se considera posible la existencia de cuerpos planetarios no ligados a la gravedad de ninguna estrella. Tales cuerpos habr\u00EDan sido expulsados del sistema en el que se formaron y en la literatura cient\u00EDfica se los denomina frecuentemente como planetas errantes o planetas interestelares. La NASA adelant\u00F3 en junio de 2010 que la Sonda Kepler, puesta en \u00F3rbita en marzo de 2009, detect\u00F3 indicios de 706 exoplanetas nuevos en sus primeros 43 d\u00EDas de funcionamiento, 400 de los cuales tienen dimensiones entre las de Neptuno y la Tierra. Los resultados oficiales de esta misi\u00F3n ser\u00E1n publicados en febrero de 2011,\u200B\u200B pero los resultados provisionales indican que al menos 60 de los planetas detectados tendr\u00E1n un tama\u00F1o similar al de la Tierra (el doble del tama\u00F1o terrestre, o menos).\u200B El 12 de enero de 2012, la revista Nature publica un art\u00EDculo desarrollado por cient\u00EDficos internacionales donde utilizando el m\u00E9todo de microlentes gravitacionales se asegura que toda estrella de la V\u00EDa L\u00E1ctea debe poseer entre 0,71 y 2,32 planetas orbitando.\u200B El exoplaneta confirmado m\u00E1s similar a la Tierra descubierto orbitando dentro de la zona habitable es, hasta mayo de 2020, Teegarden b, con un \u00EDndice de similitud con la Tierra del 93 %,\u200B con una temperatura estimada de 13 grados m\u00E1s que la Tierra.\u200BKOI-4878.01, un candidato a planeta, posee un IST mayor (98 %).\u200B De confirmarse su presencia, ser\u00EDa un posible an\u00E1logo a la Tierra."@es . . . . "Ekstersunsistema planedo"@eo . . . "Exoplaneta"@pt . . . . "9763"^^ . . . . . . . . . . . "Planeta extrasolar"@es . . "333"^^ . . . . "444226"^^ . . . . . . "\u0415\u043A\u0437\u043E\u043F\u043B\u0430\u043D\u0435\u0442\u0430"@uk . . . . 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"center"@en . . . . . . . . . . . . . "En astronomio, ekstersunsistema planedo, ekstersuna planedo, eksterplanedo a\u016D ekzoplanedo, estas planedo kiu rotacias \u0109irka\u016D stelo alia ol Suno, kaj kiu ne apartenas al la Sunsistemo. Ekzistas miliardoj de steloj en nia galaksio kaj signifa elcento el ili \u015Dajnas havi planedojn orbitantajn \u0109irka\u016D ili. Anka\u016D ekzistas planedoj orbitantaj \u0109irka\u016D brunaj nanoj kaj planedoj \u015Dvebantaj en la vakuo \u0109irka\u016D neniu stelo. \u011Cis nun oni trovis pli ol 442 ekstersunsistemajn planedojn. La plejmulto el la ekstersunsistemaj planedoj estis eltrovitaj la\u016D nerektaj metodoj anstata\u016D rekta bildigo.La plejmulto el ili estas grandmasaj gasgigantoj similaj al Jupitero, sed tio \u015Duldi\u011Das al la limigo de la nuna teknologio por trovi malgrandajn ekstersunsistemajn planedojn. Iuj relative malgrandaj planedoj, nur kelkoble pli masaj ol la Tero, estas nun malkovritaj, kaj studoj sugestas ke planedoj kun grando simila al tiu de la Tero estos malkovritaj balda\u016D, kaj \u011Dia nombro povas e\u0109 preterpasi al gasgigantoj. Oni komencis studi la eblecon de la ekzisto de la eksterunsistemaj lanedoj meze de la 19-a jarcento. Multaj astronomoj supozis ke tiaj planedoj ekzistas, sed ili ne kapablis scii kiel oftaj a\u016D kiom similaj al la Tero ili estas kompare al la planedoj de nia sunsistemo. La unua konfirmita eksterunsistema planedo detektita per la metodo okazis dum 1995; temis pri gasgiganta planedo kiu rotacias \u0109irka\u016D sia stelo, 51 Pegasi, post 4 tagoj. La kvanto de malkovroj pligrandi\u011Das jaron post jaro. Oni taksas ke almena\u016D 10% de la sun-similaj steloj havas planedojn, kaj la vera proporcio povas esti multe pli granda. La malkovro de eksterunsistemaj planedoj vigligis la demandon \u0109u ili povus teni eksterteran vivon. Nuntempe, Gliese 581 d, la kvara planedo de la ru\u011Da nano Gliese 581 (proksimume 20 lumjarojn for de la Tero), \u015Dajnas esti la plej ter-simila planedo kiu orbitas \u0109irka\u016D sia stelo ene de la enlo\u011Debla zono. Kvankam la unuaj observoj sugestis ke Gliese 581 d loki\u011Dis ekster la enlo\u011Debla zono, aldonaj observoj lokis \u011Din ene."@eo . . . . . . . . . . . . . . . . . . . . . . . . . . "Exoplaneta, t\u00E9\u017E extrasol\u00E1rn\u00ED planeta, je planeta ob\u00EDhaj\u00EDc\u00ED kolem jin\u00E9 hv\u011Bzdy ne\u017E kolem Slunce. Prvn\u00ED exoplaneta byla objevena v roce 1988, na sv\u00E9 potvrzen\u00ED musela po\u010Dkat a\u017E do roku 2002; prvn\u00ED potvrzen\u00E1 exoplaneta byla objevena v roce 1992. Od prvn\u00EDho objevu do 1. ledna 2021 bylo objeveno 4 395 exoplanet. Nal\u00E9zaj\u00ED se v 3 242 planet\u00E1rn\u00EDch soustav\u00E1ch, z nich\u017E 720 je v\u00EDcen\u00E1sobn\u00FDch. Nejv\u00EDce exoplanet objevil vesm\u00EDrn\u00FD teleskop Kepler, aktivn\u00ED p\u0159edev\u0161\u00EDm v letech 2009\u20132013. M\u00E1 na sv\u00E9m kont\u011B p\u0159es 2 000 exoplanet a n\u011Bkolik tis\u00EDc planet\u00E1rn\u00EDch kandid\u00E1t\u016F, Prvn\u00EDm dalekohledem specializovan\u00FDm na exoplanety byl spektrograf st\u00E1le pracuj\u00EDc\u00ED na observato\u0159i La Silla v Chile. Od roku 2004 objevil p\u0159es 130 exoplanet. Podle dosavadn\u00EDch pozorov\u00E1n\u00ED p\u0159ipad\u00E1 v pr\u016Fm\u011Bru na ka\u017Edou hv\u011Bzdu nejm\u00E9n\u011B jedna planeta, p\u0159i\u010Dem\u017E velk\u00E9 procento hv\u011Bzd m\u00E1 v\u00EDce planet. P\u0159ibli\u017En\u011B jedna z p\u011Bti hv\u011Bzd podobn\u00FDch Slunci m\u00E1 planetu velikosti Zem\u011B v obyvateln\u00E9 z\u00F3n\u011B. Za p\u0159edpokladu, \u017Ee v na\u0161\u00ED Galaxii se nach\u00E1z\u00ED 200 miliard hv\u011Bzd, lze odhadnout, \u017Ee v n\u00ED existuje 11 miliard potenci\u00E1ln\u011B obyvateln\u00FDch planet pozemsk\u00E9ho typu, a dal\u0161\u00EDch 40 miliard, pokud zahrneme i planety ob\u00EDhaj\u00EDc\u00ED okolo po\u010Detn\u00FDch \u010Derven\u00FDch trpasl\u00EDk\u016F. Nejm\u00E9n\u011B hmotnou zn\u00E1mou planetou je Draugr (PSR B1257+12 A nebo ), kter\u00E1 m\u00E1 dvojn\u00E1sobek hmotnosti M\u011Bs\u00EDce a ob\u00EDh\u00E1 okolo pulsaru. Nejv\u011Bt\u0161\u00ED planeta uveden\u00E1 v NASA Exoplanet Archive je , kter\u00E1 m\u00E1 p\u0159ibli\u017En\u011B 29n\u00E1sobek hmotnosti Jupitera, je ale podle n\u011Bkter\u00FDch definic na planetu p\u0159\u00EDli\u0161 hmotn\u00E1. Je mo\u017En\u00E9, \u017Ee je hn\u011Bd\u00FDm trpasl\u00EDkem. Existuj\u00ED planety, kter\u00E9 ob\u011Bhnou svou hv\u011Bzdu za n\u011Bkolik hodin, a jin\u00E9, jejich\u017E ob\u011B\u017En\u00E1 doba trv\u00E1 tis\u00EDce let. N\u011Bkter\u00E9 jsou tak daleko od sv\u00E9 hv\u011Bzdy, \u017Ee je t\u011B\u017Ek\u00E9 zjistit, zdali jsou na ni gravita\u010Dn\u011B v\u00E1zan\u00E9. T\u00E9m\u011B\u0159 v\u0161echny dosud zji\u0161t\u011Bn\u00E9 planety se nach\u00E1zej\u00ED uvnit\u0159 Ml\u00E9\u010Dn\u00E9 dr\u00E1hy, ale existuj\u00ED i n\u011Bkter\u00E9 mo\u017En\u00E9 detekce extragalaktick\u00FDch planet. Nejbli\u017E\u0161\u00ED exoplaneta Proxima Centauri b se nach\u00E1z\u00ED ve vzd\u00E1lenosti 4,2 sv\u011Bteln\u00FDch let (1,3 parsek\u016F) od Zem\u011B a ob\u00EDh\u00E1 okolo Proximy Centauri, hv\u011Bzdy nejbl\u00ED\u017Ee Slunci. Objev exoplanet zes\u00EDlil z\u00E1jem o hled\u00E1n\u00ED mimozemsk\u00E9ho \u017Eivota. Zde se v\u011Bnuje pozornost p\u0159edev\u0161\u00EDm planet\u00E1m ob\u00EDhaj\u00EDc\u00EDm v obyvateln\u00E9 z\u00F3n\u011B hv\u011Bzdy, kde je mo\u017En\u00E9, \u017Ee na jejich povrchu existuje voda v kapaln\u00E9m skupenstv\u00ED, kter\u00E1 je na Zemi p\u0159edpokladem \u017Eivota. Studium planet\u00E1rn\u00ED habitability se zab\u00FDv\u00E1 \u0159adou faktor\u016F, kter\u00E9 ovliv\u0148uj\u00ED obyvatelnost planety pro \u017Eiv\u00E9 organismy. Vedle exoplanet existuj\u00ED i toulav\u00E9 planety, kter\u00E9 neob\u00EDhaj\u00ED kolem \u017E\u00E1dn\u00E9 hv\u011Bzdy a kter\u00E9 se obvykle pova\u017Euj\u00ED za samostatn\u00E9 objekty, zvl\u00E1\u0161t\u011B pokud jsou plynn\u00FDmi obry. P\u0159\u00EDkladem je , kter\u00E1 je hn\u011Bd\u00FDm podtrpasl\u00EDkem. Po\u010Det toulav\u00FDch planet v na\u0161i Galaxii se odhaduje v \u0159\u00E1du miliard, pravd\u011Bpodobn\u011B je jich mnohem v\u00EDce."@cs . . . . . . . "horizontal"@en . . . "1124526223"^^ . . "Exoplaneten zijn planeten die draaien om een andere ster dan de Zon. Het bestaan van deze planeten is voornamelijk afgeleid van indirecte waarnemingen en daarop gebaseerde berekeningen. Deze planeten werden voor het eerst ontdekt in de jaren 90, toen de technologie ver genoeg was gevorderd om telescopen te maken die hiervoor voldoende gevoelig waren. Er worden steeds meer exoplaneten ontdekt; op 1 december 2022 stond de teller op 5284 exoplaneten. Op dezelfde datum waren er 3899 planetenstelsels ontdekt. Tot dusver zijn er 847 planetenstelsels gevonden met meerdere exoplaneten in een baan rond \u00E9\u00E9n of twee sterren (dubbelsterstelsel); er zijn ook stelsels met meer dan twee sterren gevonden met slechts \u00E9\u00E9n exoplaneet, zoals 16 Cygni."@nl . "\u0395\u03BE\u03C9\u03B7\u03BB\u03B9\u03B1\u03BA\u03CC\u03C2 \u03C0\u03BB\u03B1\u03BD\u03AE\u03C4\u03B7\u03C2"@el . "\uD0DC\uC591\uACC4\uC678 \uD589\uC131(\u592A\u967D\u7CFB\u5916\u884C\u661F), \uC678\uACC4 \uD589\uC131(\u5916\u754C\u884C\u661F) \uB610\uB294 \uACC4\uC678 \uD589\uC131(\u7CFB\u5916\u884C\u661F)\uC740 \uD0DC\uC591\uACC4 \uBC16\uC758 \uD589\uC131\uC73C\uB85C, \uD0DC\uC591\uC774 \uC544\uB2CC \uB2E4\uB978 \uD56D\uC131 \uC8FC\uC704\uB97C \uACF5\uC804\uD558\uACE0 \uC788\uB294 \uD589\uC131\uC774\uB2E4. \uC9C0\uAE08\uAE4C\uC9C0 3800\uC5EC \uAC1C\uC758 \uC678\uACC4 \uD589\uC131\uC774 \uBC1C\uACAC\uB418\uC5C8\uC73C\uBA70(2018\uB144 6\uC6D4 23\uC77C \uAE30\uC900: \uD589\uC131\uACC4 2840\uAC1C\uC5D0\uC11C \uD589\uC131 3796\uAC1C. \uC774 \uC911 \uB2E4\uC911\uD589\uC131\uACC4\uB294 632\uAC1C) \uBAA8\uB450 \uC6B0\uB9AC \uC740\uD558 \uB0B4\uC5D0 \uC788\uB2E4. \uC6B0\uB9AC \uC740\uD558\uC5D0\uB9CC \uC218\uC2ED\uC5B5 \uAC1C\uC758 \uD589\uC131\uC774 \uC874\uC7AC\uD558\uB294 \uAC83\uC73C\uB85C \uCD94\uCE21\uB418\uBA70 \uB300\uBD80\uBD84 \uD56D\uC131\uC744 \uB3CC\uACE0 \uC788\uC73C\uB098 \uC77C\uBD80\uB294 \uD640\uB85C \uC6B0\uC8FC \uACF5\uAC04\uC744 \uC6C0\uC9C1\uC774\uB294 \uB5A0\uB3CC\uC774 \uD589\uC131\uC774\uAE30\uB3C4 \uD558\uB2E4. \uBC1C\uACAC\uB41C \uC678\uACC4 \uD589\uC131\uB4E4 \uC911 \uC9C0\uAD6C\uC640 \uAC00\uC7A5 \uAC00\uAE4C\uC6B4 \uAC83\uC740 \uD504\uB85D\uC2DC\uB9C8 b\uC774\uB2E4. \uC218 \uC138\uAE30\uC5D0 \uAC78\uCCD0 \uB9CE\uC740 \uCCA0\uD559\uC790\uC640 \uACFC\uD559\uC790\uB4E4\uC740 \uC678\uACC4 \uD589\uC131\uC774 \uC788\uC73C\uB9AC\uB77C\uACE0 \uCD94\uCE21\uD574 \uC654\uC73C\uB098 \uC774\uB4E4\uC774 \uC5BC\uB9C8\uB098 \uD754\uD558\uAC8C \uC788\uB294\uC9C0 \uB610\uB294 \uC6B0\uB9AC \uD0DC\uC591\uACC4\uC640 \uC678\uACC4 \uD589\uC131\uACC4\uAC00 \uC5BC\uB9C8\uB098 \uBE44\uC2B7\uD55C\uC9C0 \uC54C \uBC29\uBC95\uC774 \uC5C6\uC5C8\uB2E4. 19\uC138\uAE30\uBD80\uD130 \uC678\uACC4 \uD589\uC131\uC744 \uCC3E\uC558\uB2E4\uB294 \uBC1C\uD45C\uAC00 \uC5EC\uB7EC \uBC88 \uC788\uC5C8\uC73C\uB098 \uCC9C\uBB38\uD559\uC790\uB4E4\uC758 \uAC80\uC99D \uACB0\uACFC \uC774 \uBAA8\uB4E0 \uC8FC\uC7A5\uB4E4\uC740 \uAE30\uAC01\uB418\uC5C8\uB2E4. 1992\uB144 \uD384\uC0AC PSR B1257+12 \uC8FC\uC704\uB97C \uB3C4\uB294 \uC554\uC11D \uD589\uC131\uB4E4\uC758 \uC874\uC7AC\uAC00 \uCD5C\uCD08\uB85C \uAC80\uC99D, \uBC1C\uD45C\uB418\uC5C8\uB2E4. \uC8FC\uACC4\uC5F4\uC131\uC744 \uB3C4\uB294 \uD589\uC131 \uC911 \uCD5C\uCD08\uB85C \uD655\uC778\uB41C \uD589\uC131\uC740 \uD398\uAC00\uC218\uC2A4\uC790\uB9AC 51\uC744 4\uC77C\uC5D0 \uD55C \uBC14\uD034 \uB3C4\uB294 \uAC00\uC2A4 \uD589\uC131 \uD398\uAC00\uC218\uC2A4\uC790\uB9AC 51 b\uC774\uB2E4. \uAD00\uCE21 \uAE30\uC220\uC758 \uD5A5\uC0C1 \uB355\uBD84\uC5D0 \uC774\uD6C4 \uC678\uACC4 \uD589\uC131\uC758 \uBC1C\uACAC \uC18D\uB3C4\uB294 \uC0C1\uC2B9\uD588\uB2E4. \uBA87\uBA87 \uC678\uACC4 \uD589\uC131\uC740 \uB9DD\uC6D0\uACBD\uC73C\uB85C \uC9C1\uC811 \uC0AC\uC9C4\uC744 \uCC0D\uC5C8\uC73C\uB098 \uB300\uB2E4\uC218\uB294 \uC2DC\uC120 \uC18D\uB3C4\uC640 \uAC19\uC740 \uAC04\uC811\uC801\uC778 \uBC29\uBC95\uC73C\uB85C \uBC1C\uACAC\uB418\uC5C8\uB2E4. \uD655\uC778\uB41C \uC678\uACC4 \uD589\uC131 \uB300\uBD80\uBD84\uC740 \uBAA9\uC131 \uB610\uB294 \uD574\uC655\uC131 \uC815\uB3C4 \uB369\uCE58\uC758 \uAC00\uC2A4 \uD589\uC131\uC73C\uB85C \uCD94\uCE21\uB418\uB098 \uAC00\uC2A4 \uD589\uC131\uC774 \uC678\uACC4 \uD589\uC131\uB4E4 \uC911 \uB300\uBD80\uBD84\uC744 \uCC28\uC9C0\uD55C\uB2E4\uB294 \uC758\uBBF8\uB294 \uC544\uB2C8\uB2E4. \uB2E8\uC9C0 \uBB34\uAC70\uC6B4 \uD589\uC131\uB4E4\uC740 \uC27D\uAC8C \uB208\uC5D0 \uB744\uAE30 \uB54C\uBB38\uC774\uBA70 \uC120\uD0DD \uD3B8\uD5A5\uC758 \uACB0\uACFC\uC774\uB2E4. \uC0C1\uB300\uC801\uC73C\uB85C \uAC00\uBCBC\uC6B4 \uC9C0\uAD6C\uC9C8\uB7C9 \uC218 \uBC30 \uC815\uB3C4\uC758 \uC678\uACC4 \uD589\uC131\uB4E4\uB3C4 \uB9CE\uC774 \uBC1C\uACAC\uB418\uC5C8\uC73C\uBA70 \uD1B5\uACC4\uC801 \uC5F0\uAD6C\uACB0\uACFC \uC774\uB4E4 \uC554\uC11D\uD615 \uC678\uACC4 \uD589\uC131\uC758 \uC218\uB294 \uAC00\uC2A4 \uD589\uC131\uBCF4\uB2E4 \uB9CE\uC740 \uAC83\uC73C\uB85C \uBCF4\uC778\uB2E4. \uCD5C\uADFC \uC9C0\uAD6C\uC640 \uBE44\uC2B7\uD558\uAC70\uB098 \uC791\uC740 \uC9C8\uB7C9\uC758 \uD589\uC131\uB4E4\uB3C4 \uBC1C\uACAC\uB418\uACE0 \uC788\uC73C\uBA70 \uC774\uB4E4 \uC911 \uC77C\uBD80\uB294 \uC9C8\uB7C9 \uC678\uC758 \uC5EC\uB7EC \uC18D\uC131\uC774 \uC9C0\uAD6C\uC640 \uBE44\uC2B7\uD55C \uAC83\uB3C4 \uC788\uB2E4. \uAC08\uC0C9 \uC65C\uC131\uC744 \uB3C4\uB294 \uC678\uACC4 \uD589\uC131\uB4E4\uB3C4 \uC788\uC73C\uBA70 \uC5B4\uB5A4 \uD56D\uC131\uC5D0\uB3C4 \uC18D\uBC15\uB418\uC9C0 \uC54A\uACE0 \uC6B0\uC8FC\uB97C \uB5A0\uB3C4\uB294 \uD589\uC131\uB3C4 \uC788\uB2E4. \uADF8\uB7EC\uB098 \uC774\uB7F0 \uD2B9\uC218\uD55C \uC0C1\uD669\uC5D0\uC11C \uCC9C\uCCB4\uB4E4\uC5D0 '\uD589\uC131' \uBA85\uCE6D\uC774 \uD56D\uC0C1 \uC801\uC6A9\uB418\uB294 \uAC83\uC740 \uC544\uB2C8\uB2E4. \uC77C\uBD80 \uD589\uC131\uC740 \uC0DD\uBA85\uCCB4 \uAC70\uC8FC\uAC00\uB2A5 \uC601\uC5ED \uB0B4\uB97C \uB3CC\uACE0 \uC788\uC5B4 \uD45C\uBA74\uC5D0 \uC561\uCCB4 \uBB3C(\uB610\uB294 \uC0DD\uBA85\uCCB4)\uC774 \uC874\uC7AC \uAC00\uB2A5\uD560 \uAC83\uC73C\uB85C \uBCF4\uC774\uBA70, \uC774\uB7F0 \uD589\uC131\uB4E4\uC758 \uBC1C\uACAC\uC73C\uB85C \uC678\uACC4 \uC0DD\uBA85\uCCB4\uC758 \uC874\uC7AC \uC5EC\uBD80\uC5D0 \uB300\uD55C \uAD00\uC2EC\uC740 \uC99D\uD3ED\uB418\uACE0 \uC788\uB2E4. \uC678\uACC4 \uD589\uC131\uC774 \uC0DD\uBA85\uCCB4\uB97C \uD488\uAE30\uC5D0 \uC801\uD569\uD55C\uC9C0\uC758 \uD3ED\uB113\uC740 \uC694\uC18C\uB4E4\uC744 \uACE0\uB824\uD558\uB294 \uAC83\uC744 \uD589\uC131 \uAC70\uC8FC \uAC00\uB2A5\uC131 \uC5F0\uAD6C\uB77C\uACE0 \uD558\uBA70 \uC774\uB294 \uC678\uACC4 \uD589\uC131 \uD0D0\uC0AC\uC5D0 \uD3EC\uD568\uB41C\uB2E4."@ko . . . . . . . . . . . . . . . . . "\u592A\u967D\u7CFB\u5916\u884C\u661F\uFF0C\u6216\u7C21\u7A31\u7CFB\u5916\u884C\u661F\uFF08Exoplanet\uFF09\uFF0C\u662F\u4F4D\u65BC\u592A\u967D\u7CFB\u4E4B\u5916\u7684\u884C\u661F\u3002\u622A\u81F32021\u5E7410\u670820\u65E5\uFF0C\u5DF2\u7D93\u88AB\u78BA\u8A8D\u7684\u7CFB\u5916\u884C\u661F\u7E3D\u5171\u67094531\u9846\uFF0C\u7576\u4E2D\u7D04\u6709\u56DB\u5206\u4E4B\u4E09\u662F\u900F\u904E\u51CC\u65E5\u73FE\u8C61\u767C\u73FE\u7684\u3002\u9019\u4E9B\u884C\u661F\u5206\u5C6C3364\u500B\u884C\u661F\u7CFB\uFF0C\u5176\u4E2D\u6709778\u500B\u591A\u884C\u661F\u7CFB\u3002\u514B\u535C\u52D2\u4EFB\u52D9\u5DF2\u7D93\u6AA2\u6E2C\u523018,000\u9846\u884C\u661F\u5019\u9078\u8005\uFF0C\u5305\u62EC262\u9846\u4F4D\u65BC\u6F5B\u5728\u9069\u5C45\u5E36\u7684\u5019\u9078\u8005\u3002 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"Planeta extrasolar"@ca . . "Pl\u00E1in\u00E9ad a fhithis\u00EDonn r\u00E9alta taobh amuigh den Ghrianch\u00F3ras. D'fhionn Michael Mayor is Didier Queloz \u00F3n nGin\u00E9iv an ch\u00E9ad cheann, i bhfithis timpeall ar 51 Pegasi, i 1995. Fionnadh tuilleadh i 1996, i bhfithis\u00ED thart ar 70 Virginis, 47 Utsaa Rajoris, is 55 Cancri, agus tuilleadh f\u00F3s \u00F3 shin."@ga . . . . . . . . . . . . . . . . . . . . . . "Planet luar surya, atau eksoplanet, adalah planet di luar Tata Surya. Sampai dengan 1 September 2021, terdapat 4.834 planet terkonfirmasi di dalam 3.572 sistem keplanetan, 795 di antaranya memiliki lebih dari satu planet. Sebagian besar telah terdeteksi melalui metode pengamatan langsung kecepatan radial (radial velocity) dan metode-metode lainnya selain penginderaan. Kebanyakan dari planet yang telah ditemukan tersebut adalah planet raksasa besar seperti Jupiter, bukan planet kecil yang padat dikarenakan keterbatasan dalam teknologi deteksi. Berdasarkan proyeksi pendeteksian terkini, planet-planet yang jauh lebih kecil, ringan, dan berbatu akhirnya akan melebihi jumlah planet gas raksasa luar surya."@in . "Planeta pozas\u0142oneczna, egzoplaneta (gr. \u03B5\u03BE\u03C9 \u2013 exo: poza, na zewn\u0105trz) \u2013 planeta znajduj\u0105ca si\u0119 w uk\u0142adzie planetarnym, kr\u0105\u017C\u0105ca wok\u00F3\u0142 gwiazdy (lub gwiazd) innej ni\u017C S\u0142o\u0144ce. Najcz\u0119\u015Bciej pozas\u0142oneczne uk\u0142ady planetarne znacznie r\u00F3\u017Cni\u0105 si\u0119 od Uk\u0142adu S\u0142onecznego, co po cz\u0119\u015Bci mo\u017Ce by\u0107 efektem niedoskona\u0142o\u015Bci metod ich wykrywania. Analizy sugeruj\u0105, \u017Ce niekt\u00F3re spo\u015Br\u00F3d uk\u0142ad\u00F3w zawieraj\u0105cych planet\u0119 na bardzo ekscentrycznej orbicie, w rzeczywisto\u015Bci mog\u0105 by\u0107 z\u0142o\u017Cone z kilku planet na orbitach prawie ko\u0142owych."@pl . . . . "ExoplanetPopulations-20170616.png"@en . . . . . "En astronomio, ekstersunsistema planedo, ekstersuna planedo, eksterplanedo a\u016D ekzoplanedo, estas planedo kiu rotacias \u0109irka\u016D stelo alia ol Suno, kaj kiu ne apartenas al la Sunsistemo. Ekzistas miliardoj de steloj en nia galaksio kaj signifa elcento el ili \u015Dajnas havi planedojn orbitantajn \u0109irka\u016D ili. Anka\u016D ekzistas planedoj orbitantaj \u0109irka\u016D brunaj nanoj kaj planedoj \u015Dvebantaj en la vakuo \u0109irka\u016D neniu stelo. \u011Cis nun oni trovis pli ol 442 ekstersunsistemajn planedojn. La plejmulto el la ekstersunsistemaj planedoj estis eltrovitaj la\u016D nerektaj metodoj anstata\u016D rekta bildigo.La plejmulto el ili estas grandmasaj gasgigantoj similaj al Jupitero, sed tio \u015Duldi\u011Das al la limigo de la nuna teknologio por trovi malgrandajn ekstersunsistemajn planedojn. Iuj relative malgrandaj planedoj, nur kelkoble "@eo . . . "Eiseaphl\u00E1in\u00E9ad"@ga . . "bat eguzki sistematik kanpoko planeta bat da. 2022ko ekainaren 1ean, 5.059 exoplaneta baieztatu ziren 3.733 planeta-sistematan, eta horietatik 824k planeta bat baino gehiago dituzte. Ezagutzen diren exoplaneten tamaina aldatu egiten da: erraldoi gaseosoak, Jupiterren tamaina bikoizten dutenak, eta Ilargiaren tamaina apur bat handiagoa dutenak. Planeta horietako 100ek baino gehiagok Lurraren tamaina bera dute gutxi gorabehera, eta horietako bederatzik beren izarraren orbitatzen dute. 2011n, Kepler espazio teleskopioaren taldeak Lurraren tamainako lehen exoplaneten aurkikuntzaren berri eman zuen, baten inguruan orbitatzen dutenak, eta . 2012an egindako azterlan batean, grabitazio-mikrolenteen datuak aztertzen dira, eta kalkuluen arabera, Esne Bideko izar bakoitzeko 1,6 planeta daude, bate"@eu . "Un pianeta extrasolare o esopianeta \u00E8 un pianeta non appartenente al sistema solare, orbitante cio\u00E8 attorno a una stella diversa dal Sole. Al 21 novembre 2022 risultano conosciuti 5279 pianeti extrasolari in 3897 sistemi planetari diversi (di cui 846 multipli); inoltre 2713 \u00E8 il numero di pianeti candidati e altri 84 possibili pianeti sono in attesa di conferma o controversi. Un elenco dei pianeti extrasolari conosciuti pu\u00F2 essere trovato nella lista dei pianeti extrasolari confermati e in quella dei pianeti extrasolari non confermati o controversi. Il traguardo simbolico del 1000\u00BA pianeta conosciuto \u00E8 stato raggiunto il 22 ottobre 2013, con l'annuncio di undici pianeti gioviani caldi da parte del progetto SuperWASP. Il 2000\u00BA pianeta confermato \u00E8 Kepler-406 b: \u00E8 stato scoperto nel 2014 e c"@it . "Un planeta extrasolar o exoplaneta \u00E9s un planeta que orbita al voltant de qualsevol estrella que no sigui el Sol i, per tant, forma part de sistemes planetaris que no \u00E9s el sistema solar. Tot i que se'n sospitava l'exist\u00E8ncia des de feia temps, no es van comen\u00E7ar a descobrir fins a la d\u00E8cada de 1990, gr\u00E0cies a la millora en les t\u00E8cniques de detecci\u00F3. El primer planeta extrasolar descobert orbitant una estrella de la seq\u00FC\u00E8ncia principal va ser 51 Pegasi b, descobert el 1995 per Michel Mayor i Didier Queloz de l'Observatori de Ginebra. Aquest planeta t\u00E9 una massa comparable a la de J\u00FApiter. Des de llavors, m\u00E9s d'un centenar de planetes han estat descoberts per diferents grups internacionals. Un estudi del 2013, dirigit per del Centre d'Astrof\u00EDsica de la Universitat Harvard, conclou que hi ha un planeta per cada estrella, malgrat que n'hi podria haver molts m\u00E9s. S'estima que la nostra gal\u00E0xia cont\u00E9 al voltant de 100.000 milions d'estrelles.Segons aquest estudi la Via L\u00E0ctia contindria com a m\u00EDnim 17.000 milions de planetes amb una mida similar o propera a la de la Terra: aix\u00F2 no significa que tots ells siguin habitables. Per a ser habitable, un planeta ha de trobar-se a una dist\u00E0ncia de la seva estrella que permeti temperatures en la seva superf\u00EDcie ni massa fredes ni massa calentes perqu\u00E8 l'aigua pugui existir en estat l\u00EDquid i fer possible la vida. El 7 de gener de 2013, l'equip de la missi\u00F3 espacial Kepler va anunciar la candidatura de l'exoplaneta KOI-172.02 a albergar vida extraterrestre, en situar-se en la zona d'habitalitat. A data 29 octubre 2021, segons l'Extrasolar Planets Encyclopaedia, hi ha 4.864 exoplanetes confirmats en 3.595 sistemes planetaris, amb 803 sistemes que tenen m\u00E9s d'un planeta. El m\u00E9s semblant a la Terra, en massa, \u00E9s l'OGLE-2005-BLG-390 L b, descobert el 2005, la massa del qual val unes 5,5 vegades la massa de la Terra. El primer sistema extrasolar descobert amb m\u00E9s d'un planeta va ser \u03C5 Andromedae. La missi\u00F3 Kepler de la NASA va descobrir el desembre de 2011 els primers exoplanetes amb la mida de la Terra. Els planetes es van anomenar Kepler-20e i Kepler-20f, i estan massa a prop de la seva estrella com per estar en una zona considerada habitable, que \u00E9s on l'aigua pot estar en forma l\u00EDquida, a la seva superf\u00EDcie, per\u00F2 s\u00F3n els exoplanetes, confirmats, fins al moment, m\u00E9s petits que orbiten al voltant d'una estrella com el nostre Sol. S'ha descobert, per exemple, que el planeta extrasolar anomenat 55 Cancri e t\u00E9 la superf\u00EDcie coberta per grafit i diamants en lloc d'estar cobert per aigua i granit, com passa a la Terra.\""@ca . 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"En extrasol\u00E4r planet, eller exoplanet, \u00E4r en planet som befinner sig utanf\u00F6r v\u00E5rt eget solsystem. De f\u00F6rsta uppt\u00E4ckterna gjordes under 1990-talet. Den 5 november 2021 fanns 4 868 planeter i 3 597 solsystem registrerade. Den stora majoriteten uppt\u00E4cks genom flera olika indirekta metoder i st\u00E4llet f\u00F6r att observeras direkt och de flesta \u00E4r ocks\u00E5 massiva j\u00E4tteplaneter i Jupiters storleksklass, men vars sammans\u00E4ttning mer liknar de jordlika planeterna av sten och metall."@sv . . . "\uC678\uACC4 \uD589\uC131"@ko . "Planeta pozas\u0142oneczna, egzoplaneta (gr. \u03B5\u03BE\u03C9 \u2013 exo: poza, na zewn\u0105trz) \u2013 planeta znajduj\u0105ca si\u0119 w uk\u0142adzie planetarnym, kr\u0105\u017C\u0105ca wok\u00F3\u0142 gwiazdy (lub gwiazd) innej ni\u017C S\u0142o\u0144ce. Najcz\u0119\u015Bciej pozas\u0142oneczne uk\u0142ady planetarne znacznie r\u00F3\u017Cni\u0105 si\u0119 od Uk\u0142adu S\u0142onecznego, co po cz\u0119\u015Bci mo\u017Ce by\u0107 efektem niedoskona\u0142o\u015Bci metod ich wykrywania. Analizy sugeruj\u0105, \u017Ce niekt\u00F3re spo\u015Br\u00F3d uk\u0142ad\u00F3w zawieraj\u0105cych planet\u0119 na bardzo ekscentrycznej orbicie, w rzeczywisto\u015Bci mog\u0105 by\u0107 z\u0142o\u017Cone z kilku planet na orbitach prawie ko\u0142owych."@pl . . . . . . . . . . . . . . . . . "142288"^^ . "The three known planets of the star HR8799, as imaged by the Hale Telescope. The light from the central star was blanked out by a vector vortex coronagraph."@en . . . . . . "Exoplaneta, t\u00E9\u017E extrasol\u00E1rn\u00ED planeta, je planeta ob\u00EDhaj\u00EDc\u00ED kolem jin\u00E9 hv\u011Bzdy ne\u017E kolem Slunce. Prvn\u00ED exoplaneta byla objevena v roce 1988, na sv\u00E9 potvrzen\u00ED musela po\u010Dkat a\u017E do roku 2002; prvn\u00ED potvrzen\u00E1 exoplaneta byla objevena v roce 1992. Od prvn\u00EDho objevu do 1. ledna 2021 bylo objeveno 4 395 exoplanet. Nal\u00E9zaj\u00ED se v 3 242 planet\u00E1rn\u00EDch soustav\u00E1ch, z nich\u017E 720 je v\u00EDcen\u00E1sobn\u00FDch."@cs . . "\uD0DC\uC591\uACC4\uC678 \uD589\uC131(\u592A\u967D\u7CFB\u5916\u884C\u661F), \uC678\uACC4 \uD589\uC131(\u5916\u754C\u884C\u661F) \uB610\uB294 \uACC4\uC678 \uD589\uC131(\u7CFB\u5916\u884C\u661F)\uC740 \uD0DC\uC591\uACC4 \uBC16\uC758 \uD589\uC131\uC73C\uB85C, \uD0DC\uC591\uC774 \uC544\uB2CC \uB2E4\uB978 \uD56D\uC131 \uC8FC\uC704\uB97C \uACF5\uC804\uD558\uACE0 \uC788\uB294 \uD589\uC131\uC774\uB2E4. \uC9C0\uAE08\uAE4C\uC9C0 3800\uC5EC \uAC1C\uC758 \uC678\uACC4 \uD589\uC131\uC774 \uBC1C\uACAC\uB418\uC5C8\uC73C\uBA70(2018\uB144 6\uC6D4 23\uC77C \uAE30\uC900: \uD589\uC131\uACC4 2840\uAC1C\uC5D0\uC11C \uD589\uC131 3796\uAC1C. \uC774 \uC911 \uB2E4\uC911\uD589\uC131\uACC4\uB294 632\uAC1C) \uBAA8\uB450 \uC6B0\uB9AC \uC740\uD558 \uB0B4\uC5D0 \uC788\uB2E4. \uC6B0\uB9AC \uC740\uD558\uC5D0\uB9CC \uC218\uC2ED\uC5B5 \uAC1C\uC758 \uD589\uC131\uC774 \uC874\uC7AC\uD558\uB294 \uAC83\uC73C\uB85C \uCD94\uCE21\uB418\uBA70 \uB300\uBD80\uBD84 \uD56D\uC131\uC744 \uB3CC\uACE0 \uC788\uC73C\uB098 \uC77C\uBD80\uB294 \uD640\uB85C \uC6B0\uC8FC \uACF5\uAC04\uC744 \uC6C0\uC9C1\uC774\uB294 \uB5A0\uB3CC\uC774 \uD589\uC131\uC774\uAE30\uB3C4 \uD558\uB2E4. \uBC1C\uACAC\uB41C \uC678\uACC4 \uD589\uC131\uB4E4 \uC911 \uC9C0\uAD6C\uC640 \uAC00\uC7A5 \uAC00\uAE4C\uC6B4 \uAC83\uC740 \uD504\uB85D\uC2DC\uB9C8 b\uC774\uB2E4. \uC77C\uBD80 \uD589\uC131\uC740 \uC0DD\uBA85\uCCB4 \uAC70\uC8FC\uAC00\uB2A5 \uC601\uC5ED \uB0B4\uB97C \uB3CC\uACE0 \uC788\uC5B4 \uD45C\uBA74\uC5D0 \uC561\uCCB4 \uBB3C(\uB610\uB294 \uC0DD\uBA85\uCCB4)\uC774 \uC874\uC7AC \uAC00\uB2A5\uD560 \uAC83\uC73C\uB85C \uBCF4\uC774\uBA70, \uC774\uB7F0 \uD589\uC131\uB4E4\uC758 \uBC1C\uACAC\uC73C\uB85C \uC678\uACC4 \uC0DD\uBA85\uCCB4\uC758 \uC874\uC7AC \uC5EC\uBD80\uC5D0 \uB300\uD55C \uAD00\uC2EC\uC740 \uC99D\uD3ED\uB418\uACE0 \uC788\uB2E4. \uC678\uACC4 \uD589\uC131\uC774 \uC0DD\uBA85\uCCB4\uB97C \uD488\uAE30\uC5D0 \uC801\uD569\uD55C\uC9C0\uC758 \uD3ED\uB113\uC740 \uC694\uC18C\uB4E4\uC744 \uACE0\uB824\uD558\uB294 \uAC83\uC744 \uD589\uC131 \uAC70\uC8FC \uAC00\uB2A5\uC131 \uC5F0\uAD6C\uB77C\uACE0 \uD558\uBA70 \uC774\uB294 \uC678\uACC4 \uD589\uC131 \uD0D0\uC0AC\uC5D0 \uD3EC\uD568\uB41C\uB2E4."@ko . . . . . "Un pianeta extrasolare o esopianeta \u00E8 un pianeta non appartenente al sistema solare, orbitante cio\u00E8 attorno a una stella diversa dal Sole. Al 21 novembre 2022 risultano conosciuti 5279 pianeti extrasolari in 3897 sistemi planetari diversi (di cui 846 multipli); inoltre 2713 \u00E8 il numero di pianeti candidati e altri 84 possibili pianeti sono in attesa di conferma o controversi. Un elenco dei pianeti extrasolari conosciuti pu\u00F2 essere trovato nella lista dei pianeti extrasolari confermati e in quella dei pianeti extrasolari non confermati o controversi. Il traguardo simbolico del 1000\u00BA pianeta conosciuto \u00E8 stato raggiunto il 22 ottobre 2013, con l'annuncio di undici pianeti gioviani caldi da parte del progetto SuperWASP. Il 2000\u00BA pianeta confermato \u00E8 Kepler-406 b: \u00E8 stato scoperto nel 2014 e confermato il 25 novembre 2015 nell'ambito della missione Kepler con il metodo del transito. La scoperta degli esopianeti \u00E8 resa possibile da metodi di osservazione indiretta o da osservazioni al telescopio. A causa dei limiti delle tecniche di osservazione attuali, la maggior parte dei pianeti individuati sono giganti gassosi come Giove e, solo in misura minore, pianeti rocciosi massicci del tipo Super Terra. La frazione di pianeti pi\u00F9 piccoli in costante crescita, soprattutto grazie alla missione Kepler, consente gi\u00E0 di definire un abbozzo di classificazione esoplanetaria in base alle loro dimensioni. Gli esopianeti conosciuti appartengono a sistemi planetari che orbitano attorno a una stella. Esistono tuttavia numerose osservazioni non confermate di oggetti di massa planetaria non legati a vincoli gravitazionali con alcuna stella (i cosiddetti pianeti interstellari): tali corpi celesti non sono definibili come \"pianeti\" secondo l'attuale definizione dell'Unione Astronomica Internazionale. L'interesse scientifico sugli esopianeti \u00E8 cresciuto sempre pi\u00F9 a partire dal 1992, anno della prima scoperta confermata (PSR B1257+12).Inizialmente il ritmo delle scoperte \u00E8 stato molto lento, ma a partire dagli anni 2000 ha conosciuto una vera e propria impennata, passando dai 20 pianeti scoperti nel 2000, ai 189 del 2011, ai quasi 2000 del 2015. La possibilit\u00E0 di presenza di sistemi planetari attorno a stelle simili al Sole \u00E8 valutata in modo molto diverso: molti astronomi ritengono che questa sia la norma, mentre altri stimano che solo il 10% delle stelle di tipo solare posseggano un sistema planetario. Spesso la ricerca di esopianeti coincide con la ricerca di mondi in grado di ospitare una forma di vita extraterrestre. Kepler-22 b - ruotante attorno a una nana gialla, Kepler-22, distante approssimativamente 600 anni luce dal sistema solare - \u00E8 stato il primo esopianeta di tipo terrestre (classificato tra le Super Terre) scoperto orbitare nella zona abitabile del proprio sistema nel 2011; esso avrebbe infatti una temperatura superficiale media di circa 22 \u00B0C, il che consente la presenza di acqua allo stato liquido, presupposto per la presenza di vita. Un altro pianeta scoperto da Kepler nel 2015, Kepler-442 b, \u00E8 stato ritenuto essere il pianeta pi\u00F9 simile alla Terra mai individuato. Sono in costruzione attualmente diversi telescopi e strumenti progettati appositamente per l'individuazione di pianeti extrasolari, tra cui l'Automated Planet Finder, CHEOPS e il telescopio spaziale TESS operativo da giugno 2018. Anche le missioni spaziali SIM (inizialmente prevista per il 2015 ma poi cancellata nel 2010) e Terrestrial Planet Finder (prevista dopo il 2015 e anch'essa cancellata nel 2010), avevano come scopo principale la ricerca di pianeti extrasolari."@it . . . . . . . . . . . .