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X Trianguli Australis is a star in the southern constellation Triangulum Australe. It is a red-hued carbon star approximately 920 light years (280 parsecs) from Earth, though this could vary by up to 200 light years. It is a semi-regular variable star with two periods of around 385 and 455 days, and is of spectral type C5.5(Nb). It ranges from magnitudes 5.03 to 6.05. Its designation is from the variable star designation developed by German astronomer Friedrich Wilhelm Argelander.

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  • X Trianguli Australis (es)
  • X Trianguli Australis (pt)
  • X Trianguli Australis (en)
  • X Trianguli Australis (sv)
  • 望遠鏡座X (zh)
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  • X Trianguli Australis är en halvregelbunden variabel av SR-typ i stjärnbilden Södra triangeln. Stjärnan varierar mellan visuell magnitud +5,03 och 6,05 med en period av 361,1 dygn. (sv)
  • 望遠鏡座X,又名CP-69 2267,HD 134453、SAO 253062、HR 5644,是望遠鏡座的一颗恒星,视星等为5.81,位于銀經314.6,銀緯-10.52,其B1900.0坐标为赤經15h 4m 43.1s,赤緯-69° -10.52′ 8″。 (zh)
  • X Trianguli Australis (X TrA)​ es una estrella variable en la constelación del Triángulo Austral.De magnitud aparente media +5,63, se encuentra a una distancia de 1170 años luz del Sistema Solar, aunque el error en la medida es de casi el 16%.​ Catalogada como variable irregular de tipo LB, la variación de brillo de X Trianguli Australis es de 1,35 magnitudes.​ (es)
  • X Trianguli Australis is a star in the southern constellation Triangulum Australe. It is a red-hued carbon star approximately 920 light years (280 parsecs) from Earth, though this could vary by up to 200 light years. It is a semi-regular variable star with two periods of around 385 and 455 days, and is of spectral type C5.5(Nb). It ranges from magnitudes 5.03 to 6.05. Its designation is from the variable star designation developed by German astronomer Friedrich Wilhelm Argelander. (en)
  • X Trianguli Australis (X TrA) é uma estrela de carbono na constelação de Triangulum Australe. Tem uma magnitude aparente de 5,63, sendo uma das poucas estrelas desse tipo visíveis a olho nu. Medições de paralaxe indicam que está localizada a aproximadamente 920 anos-luz (283 parsecs) da Terra, com uma margem de erro de 50 anos-luz (16 pc). X Trianguli Australis é também uma estrela variável, variando entre magnitude 5,03 e 6,05. Pode ser uma do tipo LB sem período reconhecível ou semirregular, com dois períodos de 385 e 455 dias. (pt)
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  • X Trianguli Australis (en)
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  • http://commons.wikimedia.org/wiki/Special:FilePath/XTrALightCurve.png
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absmag v
  • −1.97 (en)
appmag v
  • +5.75 (en)
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  • J2000 (en)
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