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Omikron2 Centauri (ο2 Centauri, förkortat … Omikron2 Centauri (ο2 Centauri, förkortat Omikron2 Cen, ο2 Cen) som är stjärnans Bayerbeteckning, är en ensam stjärna belägen i den sydvästra delen av stjärnbilden Kentauren. Den har en genomsnittlig skenbar magnitud på 5,14 och är synlig för blotta ögat där ljusföroreningar ej förekommer. Baserat på parallaxmätning inom Hipparcosuppdraget på ca 0,6 mas, beräknas den befinna sig på ett avstånd på ca 5 000 ljusår (ca 1 600 parsek) från solen.5 000 ljusår (ca 1 600 parsek) från solen.
, Omicron2 Centauri (ο2 Cen, ο2 Centauri) é … Omicron2 Centauri (ο2 Cen, ο2 Centauri) é uma estrela na constelação de Centaurus. Tem uma magnitude aparente visual de 5,14, sendo visível a olho nu em locais com pouca poluição luminosa. Está muito distante da Terra para ter sua distância medida com precisão; as medições de paralaxe da sonda Gaia indicam que está a aproximadamente 5 700 anos-luz (1700 parsecs) da Terra, mas com a alta incerteza esse valor pode ser de 4 700 até 7 300 anos-luz (1 400 a 2 200 pc). A essa distância, sua magnitude é diminuída em 1,22 devido à extinção causada por gás e poeira no meio interestelar. Omicron2 Centauri é uma estrela supergigante luminosa de classe A com um tipo espectral de A2Ia e temperatura efetiva de 9 080 K. É uma estrela muito brilhante, com uma magnitude absoluta de -7,5 e luminosidade equivalente a 100 mil vezes a luminosidade solar. Possui massa 18 vezes superior à solar e raio de 131 raios solares. Está girando com uma velocidade de rotação projetada de 50 km/s, levando não mais que 132 dias para completar uma rotação. É uma estrela variável do tipo , variando sua magnitude aparente entre 5,12 e 5,22 com períodos de 14 a 46 dias. Omicron2 Centauri forma uma estrela dupla visível a olho nu com Omicron1 Centauri, uma outra supergigante de quinta magnitude, separada por 4,6 minutos de arco na esfera celeste.por 4,6 minutos de arco na esfera celeste.
, Omicron2 Centauri (ο2 Cen, ο2 Centauri) is … Omicron2 Centauri (ο2 Cen, ο2 Centauri) is a star in the constellation Centaurus. ο2 Centauri is a white A-type supergiant with a mean apparent magnitude of +5.12. It is approximately 5000 light years from Earth. It is classified as an Alpha Cygni type variable star and its brightness varies from magnitude +5.12 to +5.22 with a period of 46.3 days. In 1996, Kaufer and colleagues calculated Omicron2 Centauri to be around 136,000 times as luminous, 18 times as massive and have 131 times the diameter of the Sun. ο2 Cen forms a close naked eye pair with ο1 Cen, another 5th magnitude supergiant. ο1 Cen, another 5th magnitude supergiant.
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| rdfs:comment |
Omicron2 Centauri (ο2 Cen, ο2 Centauri) é … Omicron2 Centauri (ο2 Cen, ο2 Centauri) é uma estrela na constelação de Centaurus. Tem uma magnitude aparente visual de 5,14, sendo visível a olho nu em locais com pouca poluição luminosa. Está muito distante da Terra para ter sua distância medida com precisão; as medições de paralaxe da sonda Gaia indicam que está a aproximadamente 5 700 anos-luz (1700 parsecs) da Terra, mas com a alta incerteza esse valor pode ser de 4 700 até 7 300 anos-luz (1 400 a 2 200 pc). A essa distância, sua magnitude é diminuída em 1,22 devido à extinção causada por gás e poeira no meio interestelar.ada por gás e poeira no meio interestelar.
, Omicron2 Centauri (ο2 Cen, ο2 Centauri) is … Omicron2 Centauri (ο2 Cen, ο2 Centauri) is a star in the constellation Centaurus. ο2 Centauri is a white A-type supergiant with a mean apparent magnitude of +5.12. It is approximately 5000 light years from Earth. It is classified as an Alpha Cygni type variable star and its brightness varies from magnitude +5.12 to +5.22 with a period of 46.3 days. In 1996, Kaufer and colleagues calculated Omicron2 Centauri to be around 136,000 times as luminous, 18 times as massive and have 131 times the diameter of the Sun. ο2 Cen forms a close naked eye pair with ο1 Cen, another 5th magnitude supergiant. ο1 Cen, another 5th magnitude supergiant.
, Omikron2 Centauri (ο2 Centauri, förkortat … Omikron2 Centauri (ο2 Centauri, förkortat Omikron2 Cen, ο2 Cen) som är stjärnans Bayerbeteckning, är en ensam stjärna belägen i den sydvästra delen av stjärnbilden Kentauren. Den har en genomsnittlig skenbar magnitud på 5,14 och är synlig för blotta ögat där ljusföroreningar ej förekommer. Baserat på parallaxmätning inom Hipparcosuppdraget på ca 0,6 mas, beräknas den befinna sig på ett avstånd på ca 5 000 ljusår (ca 1 600 parsek) från solen.5 000 ljusår (ca 1 600 parsek) från solen.
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Omikron2 Centauri
, Omicron2 Centauri
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