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W Cygni is a semi-regular variable star in the constellation Cygnus, located 570 light-years from Earth. It lies less than half a degree southeast of ρ Cygni. W Cygni is, at times, a naked-eye star but it was not given a Bayer or Flamsteed designation. It has been proposed as a binary star system with a hotter main sequence companion, but this has not been confirmed.

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  • はくちょう座W星 (ja)
  • W Cygni (en)
  • W Cygni (sv)
  • 天鵝座W (zh)
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  • はくちょう座W星(はくちょうざダブリューせい)は、はくちょう座にある有名な半規則型変光星のことである。学名はW Cygni(略称はW Cyg)で、典型的な赤色巨星である。 (ja)
  • W Cygni är en halvregelbunden variabel av SRB-typ i stjärnbilden Svanen. Stjärnan varierar mellan magnitud +5,10 och 6,83 med en period av 131,7 dygn. Den har en sekundär period som uppmätts till 235,3 dygn (GCVS) och 260 dygn (Otero). (sv)
  • 天鵝座W,又名BD+44 3877,HD 205730、SAO 51079、HR 8262,是天鵝座的一颗恒星,视星等为5.53,位于銀經90.86,銀緯-4.98,其B1900.0坐标为赤經21h 32m 14.3s,赤緯+44° -4.98′ 36″。 (zh)
  • W Cygni is a semi-regular variable star in the constellation Cygnus, located 570 light-years from Earth. It lies less than half a degree southeast of ρ Cygni. W Cygni is, at times, a naked-eye star but it was not given a Bayer or Flamsteed designation. It has been proposed as a binary star system with a hotter main sequence companion, but this has not been confirmed. (en)
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  • W Cygni (en)
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  • http://commons.wikimedia.org/wiki/Special:FilePath/Red_circle.svg
  • http://commons.wikimedia.org/wiki/Special:FilePath/Cygnus_constellation_map.svg
  • http://commons.wikimedia.org/wiki/Special:FilePath/W_Cygni_light_curve.png
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  • −0.43 (en)
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