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Theta Hydrae, Latinized from θ Hydrae, is a binary star system in the constellation Hydra. It is visible to the naked eye with an apparent visual magnitude of 3.9. The star system has a high proper motion with an annual parallax shift of 28.4 mas, indicating a distance of about 115 light years. Theta Hydrae forms a double with a magnitude 9.9 star located at an angular separation of 29 arcseconds.

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rdf:type
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  • Theta Hydrae (es)
  • Theta Hydrae (fr)
  • Theta Hydrae (it)
  • Theta Hydrae (pt)
  • Theta Hydrae (en)
  • Theta Hydrae (sv)
  • 柳宿八 (zh)
  • Тета Гідри (uk)
rdfs:comment
  • Theta Hydrae (θ Hya) est une étoile binaire de la constellation de l'Hydre. Sa magnitude apparente est de 3,88. (fr)
  • Theta Hydrae (θ Hya, θ Hydrae) è una stella della costellazione dell'Idra di magnitudine apparente +3,88, distante 128 anni luce dalla Terra. (it)
  • Theta Hydrae (22 Hydrae) é uma estrela na direção da constelação de Hydra. Possui uma ascensão reta de 09h 14m 21.79s e uma declinação de +02° 18′ 54.1″. Sua magnitude aparente é igual a 3.89. Considerando sua distância de 129 anos-luz em relação à Terra, sua magnitude absoluta é igual a 0.91. Pertence à classe espectral B9.5V. (pt)
  • Theta Hydrae (θ Hydrae, förkortat Theta Hya, θ Hya) som är stjärnans Bayerbeteckning, är en dubbelstjärna belägen i den nordvästra delen av stjärnbilden Vattenormen. Den har en skenbar magnitud på 3,89 och är synlig för blotta ögat där ljusföroreningar ej förekommer. Baserat på parallaxmätning inom Hipparcosuppdraget på ca 28,7 mas, beräknas den befinna sig på ett avstånd på ca 113 ljusår (ca 35 parsek) från solen. (sv)
  • Тета Гідри (лат. θ Hydrae), також HD79469 — хімічно пекулярна зоря спектрального класу A0, що має видиму зоряну величину в смузі V приблизно 3,9.Вона розташована на відстані близько 128,7 світлових років від Сонця у сузір'ї Гідри. (uk)
  • 長蛇座θ,又名BD+02 2167,HD 79469、SAO 117527、HR 3665,是長蛇座的一颗恒星,视星等为3.88,位于銀經228.77,銀緯32.53,其B1900.0坐标为赤經9h 9m 9.7s,赤緯+2° 32.53′ 11″。 (zh)
  • Theta Hydrae (θ Hya / HD 79469 / HR 3665)​ es una estrella en la constelación de la Hidra de magnitud aparente +3,88.Se encuentra a 129 años luz del Sistema Solar. Theta Hydrae es una estrella de la secuencia principal de tipo espectral B9.5V, semejante a β Sculptoris o ζ Coronae Australis.Tiene una temperatura efectiva de 10.099 ± 145 K​ y, a partir de la medida de su diámetro angular —0,490 milisegundos de arco—,​ se puede conocer su radio, que es aproximadamente el doble que el radio solar.Como otras estrellas semejantes, gira sobre sí misma rápidamente, con una velocidad de rotación de al menos 82 km/s,​ unas 40 veces más deprisa que el Sol.Su campo magnético efectivo e> es de 126 G.​ (es)
  • Theta Hydrae, Latinized from θ Hydrae, is a binary star system in the constellation Hydra. It is visible to the naked eye with an apparent visual magnitude of 3.9. The star system has a high proper motion with an annual parallax shift of 28.4 mas, indicating a distance of about 115 light years. Theta Hydrae forms a double with a magnitude 9.9 star located at an angular separation of 29 arcseconds. (en)
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  • Theta Hydrae (en)
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