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WD 1856+534 is a white dwarf located in the constellation of Draco. At a distance of about 25 parsecs (80 ly) from Earth, it is the outer component of a visual triple star system consisting of an inner pair of red dwarf stars. The white dwarf displays a featureless absorption spectrum, lacking strong optical absorption or emission features in its atmosphere. It has an effective temperature of 4,700 K (4,430 °C; 8,000 °F), corresponding to an age of approximately 5.8 billion years. WD 1856+534 is approximately half as massive as the Sun, while its radius is much smaller, being 40% larger than Earth.

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  • WD 1856+534 (de)
  • WD 1856+534 (fr)
  • WD 1856+534 (it)
  • WD 1856+534 (ja)
  • WD 1856+534 (ru)
  • WD 1856+534 (en)
  • WD 1856+534 (zh)
rdfs:comment
  • WD 1856+534 ist ein alter Weißer Zwerg im Sternbild Drache. Er befindet sich in einer Entfernung von etwa 80 Lichtjahren. Im Jahre 2020 wurden im System mithilfe von TESS erstmals klare Hinweise auf einen Exoplaneten entdeckt, welcher sich in der Umlaufbahn um einen Weißen Zwerg befindet. Es ist unwahrscheinlich, dass der Planet sich schon immer dort befunden hat, da er an dieser Position wohl die Rote-Riesen-Phase des Zentralsterns nicht überstanden hätte. (de)
  • WD 1856+534 est une naine blanche située à 25 pc (81 al), au sein d'un système de trois étoiles. Sa température de surface étant de 4 710 ± 60 kelvins, les modèles de refroidissement indiquent que cette étoile est devenue une naine blanche il y a 5,9 ± 0,5 milliards d'années (Ga). (fr)
  • WD 1856+534とは、りゅう座の方向に存在する白色矮星である。地球から約 80.7光年 (24.7 pc) 離れた位置にあるこの白色矮星は、2つの赤色矮星のペアとの三重星系の一部をなしている。有効温度は 4,700 K (4,430 °C; 8,000 °F) で、年齢は約58億年とされる。WD 1856+534の質量は太陽の約半分であるが、半径ははるかに小さく、地球の約40%大きいサイズとされる。 (ja)
  • WD 1856+534 is a white dwarf located in the constellation of Draco. At a distance of about 25 parsecs (80 ly) from Earth, it is the outer component of a visual triple star system consisting of an inner pair of red dwarf stars. The white dwarf displays a featureless absorption spectrum, lacking strong optical absorption or emission features in its atmosphere. It has an effective temperature of 4,700 K (4,430 °C; 8,000 °F), corresponding to an age of approximately 5.8 billion years. WD 1856+534 is approximately half as massive as the Sun, while its radius is much smaller, being 40% larger than Earth. (en)
  • WD 1856+534 è una stella nana bianca situata nella costellazione del Dragone. Distante 81 anni luce dalla Terra, è la parte esterna di un sistema triplo visuale costituito da una coppia di nane rosse all'interno. La nana bianca mostra uno spettro di assorbimento aspecifico, privo di forti caratteristiche di emissione ottica o di assorbimento nella sua atmosfera. WD 1856+534 come tutte le nane bianche è estremamente densa: pur avendo la metà della massa del Sole, ha un raggio che è solamente del 40% superiore a quello terrestre. (it)
  • WD 1856+534是位於天龍座的一顆白矮星。它距離地球25秒差距(80光年),是可見的三合星系統,其組成內有一對紅矮星。這顆白矮星的大氣層光譜缺乏強的光學吸收或發射譜線,呈現無特徵的吸收光譜。其有效溫度為4,700 K(4,430 °C;8,000 °F),對應的年齡為58億年。WD 1856+534的質量約為太陽的一半,而其半徑小得多,只比地球大40%。 (zh)
  • WD 1856+534 — белый карлик в созвездии Дракона. Находится на расстоянии около 25 парсек от Солнца. Является внешним компонентом визуальной тройной звёздной системы, внутренние компоненты которой являются красными карликами. (ru)
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  • WD 1856+534 (en)
name
  • WD 1856+534 (en)
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  • http://commons.wikimedia.org/wiki/Special:FilePath/NASA-ExoplanetOrbitingWhiteDwarfStarWD1856+534.jpg
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