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V Hydrae (V Hya) is a carbon star in the constellation Hydra. To date perhaps uniquely in our galaxy it has plasma ejections/eruptions on a grand scale every 8.5 years caused by its near, unseen companion in an 8.5 year orbit, inferred by its ultraviolet excess and periastron passage likely through the outer parts of the star itself.

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  • うみへび座V星 (ja)
  • V Hydrae (en)
  • V Hydrae (sv)
  • 長蛇座V (zh)
  • V Гідри (uk)
rdfs:comment
  • V Hydrae (V Hya) is a carbon star in the constellation Hydra. To date perhaps uniquely in our galaxy it has plasma ejections/eruptions on a grand scale every 8.5 years caused by its near, unseen companion in an 8.5 year orbit, inferred by its ultraviolet excess and periastron passage likely through the outer parts of the star itself. (en)
  • うみへび座V星(うみへびざVせい)は、うみへび座の脈動変光星。 (ja)
  • V Hydrae är en halvregelbunden variabel av SRA-typ i stjärnbilden Vattenormen. Stjärnan varierar mellan visuell magnitud +6,0 och 12,3 med en period av 530,7 dygn. (sv)
  • 長蛇座V(V Hydrae,縮寫:V Hya)是一顆位於長蛇座的碳星。這顆垂死恆星因為發現噴發高溫電漿物質現象而受到天文學家的注目,並且被認為是研究恆星形成行星狀星雲過程的重要天體。 (zh)
  • V Гідри (V Hydrae, V Hya) – вуглецева зоря у сузір'ї Гідри. (uk)
foaf:name
  • V Hydrae (en)
foaf:depiction
  • http://commons.wikimedia.org/wiki/Special:FilePath/Red_circle.svg
  • http://commons.wikimedia.org/wiki/Special:FilePath/Artist's_Illustration_of_Scenario_for_Plasma_Ejections_from_V_Hydrae.jpg
  • http://commons.wikimedia.org/wiki/Special:FilePath/Hydra_constellation_map.svg
  • http://commons.wikimedia.org/wiki/Special:FilePath/VHyaLightCurve.png
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absmag v
  • −3.5 to +1.8 (en)
appmag v
b-v
  • +5.43 (en)
class
  • C6,3e-C7,5e (en)
component
  • A (en)
  • B (en)
constell
eccentricity
  • ≥0.6 (en)
epoch
  • J2000 (en)
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