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• Epsilon_Cygni abstract "Epsilon Cygni (ε Cyg, ε Cygni) is a star in the constellation Cygnus. This Bayer designation is from Johann Bayer's 1603 Uranometria atlas of bright stars. With an apparent visual magnitude of 2.48, which makes it readily visible to the naked eye at night and one of the brighter members of Cygnus. It is called Gienah, a traditional name it shares with Gamma Corvi. The name "Gienah" derives from the Arabic word for wing, جناح janāħ. In Chinese, 天津 (Tiān Jīn), meaning Celestial Ford, refers to an asterism consisting of ε Cygni, γ Cygni, δ Cygni, 30 Cygni, α Cygni, ν Cygni, τ Cygni, υ Cygni and ζ Cygni. Consequently, ε Cygni itself is known as 天津九 (Tiān Jīn jiǔ, English: the Ninth Star of Celestial Ford.). Based upon parallax measurement, Epsilon Cygni is about 73 light-years from Earth.Epsilon Cygni is a giant star with a stellar classification of K0 III. This indicates that the star has left the main sequence and has begun the final stages in its stellar evolution. Since 1943, the spectrum of this star has served as one of the stable anchor points by which other stars are classified. The effective temperature of the star's photosphere is 4,710 K, giving Epsilon Cygni an orange hue that is a characteristic of K-type stars. This star has nearly 11 times the solar radius and is about 62 times the luminosity of the Sun.In 1920 it was suggested that the star is a spectroscopic binary system, but this was later brought into question. It has an optical companion Epsilon Cygni B that is not physically associated with Epsilon Cygni A, and a 13th magnitude candidate common proper motion companion Epsilon Cygni C at an angular separation of 78 arcseconds. If the latter star is gravitationally bound to Epsilon Cygni A, then they are currently separated by 1700 AU or more, and have an orbital period of at least 50,000 years. Radial velocity observations of Epsilon Cygni suggest a possible companion with an orbital period of at least 15 years.".
• Epsilon_Cygni thumbnail Cygnus_IAU.svg?width=300.
• Epsilon_Cygni wikiPageExternalLink 81902791.
• Epsilon_Cygni wikiPageExternalLink NGC_6960.html.
• Epsilon_Cygni wikiPageExternalLink 20460042.htm.
• Epsilon_Cygni wikiPageID "1360406".
• Epsilon_Cygni wikiPageRevisionID "591220000".
• Epsilon_Cygni ageGyr "~1.5".
• Epsilon_Cygni appmagV "2.48".
• Epsilon_Cygni bV "+1.030".
• Epsilon_Cygni class "K0 III".
• Epsilon_Cygni constell Cygnus_(constellation).
• Epsilon_Cygni epoch "J2000".
• Epsilon_Cygni gravity "2.8".
• Epsilon_Cygni hasPhotoCollection Epsilon_Cygni.
• Epsilon_Cygni mass "~2".
• Epsilon_Cygni metalFe "–0.27".
• Epsilon_Cygni pError "0.12".
• Epsilon_Cygni parallax "44.86".
• Epsilon_Cygni propMoDec "330.6".
• Epsilon_Cygni propMoRa "355.66".
• Epsilon_Cygni radialV "–12.41".
• Epsilon_Cygni temperature "4710".
• Epsilon_Cygni uB "+0.860".
• Epsilon_Cygni subject Category:Bayer_objects.
• Epsilon_Cygni subject Category:Cygnus_(constellation).
• Epsilon_Cygni subject Category:K-type_giants.
• Epsilon_Cygni subject Category:Objects_within_100_ly_of_Earth.
• Epsilon_Cygni subject Category:Stars_with_proper_names.
• Epsilon_Cygni type Animal100015388.
• Epsilon_Cygni type BayerObjects.
• Epsilon_Cygni type CelestialBody109239740.
• Epsilon_Cygni type Giant101323781.
• Epsilon_Cygni type K-typeGiants.
• Epsilon_Cygni type LivingThing100004258.
• Epsilon_Cygni type NaturalObject100019128.
• Epsilon_Cygni type Object100002684.
• Epsilon_Cygni type Organism100004475.
• Epsilon_Cygni type PhysicalEntity100001930.
• Epsilon_Cygni type Star109444100.
• Epsilon_Cygni type StarsWithProperNames.
• Epsilon_Cygni type Whole100003553.
• Epsilon_Cygni type CelestialBody.
• Epsilon_Cygni type Star.
• Epsilon_Cygni type PhysicalBody.
• Epsilon_Cygni comment "Epsilon Cygni (ε Cyg, ε Cygni) is a star in the constellation Cygnus. This Bayer designation is from Johann Bayer's 1603 Uranometria atlas of bright stars. With an apparent visual magnitude of 2.48, which makes it readily visible to the naked eye at night and one of the brighter members of Cygnus. It is called Gienah, a traditional name it shares with Gamma Corvi. The name "Gienah" derives from the Arabic word for wing, جناح janāħ.".
• Epsilon_Cygni label "Epsilon Cygni".
• Epsilon_Cygni label "Epsilon Cygni".
• Epsilon_Cygni label "Epsilon Cygni".
• Epsilon_Cygni label "Epsilon Cygni".
• Epsilon_Cygni label "Epsilon Cygni".
• Epsilon_Cygni label "Epsilon Cygni".
• Epsilon_Cygni label "Gienah".
• Epsilon_Cygni label "Giennah".
• Epsilon_Cygni label "جناح الغراب الأيسر (نجم)".
• Epsilon_Cygni label "はくちょう座イプシロン星".
• Epsilon_Cygni label "天津九".
• Epsilon_Cygni sameAs Epsilon_Cygni.
• Epsilon_Cygni sameAs Giennah.
• Epsilon_Cygni sameAs Giennah.
• Epsilon_Cygni sameAs Epsilon_Cygni.
• Epsilon_Cygni sameAs Epsilon_Cygni.
• Epsilon_Cygni sameAs Epsilon_Cygni.
• Epsilon_Cygni sameAs はくちょう座イプシロン星.
• Epsilon_Cygni sameAs 기에나흐.
• Epsilon_Cygni sameAs Gienah.
• Epsilon_Cygni sameAs Epsilon_Cygni.
• Epsilon_Cygni sameAs Epsilon_Cygni.
• Epsilon_Cygni sameAs m.04wnd_.
• Epsilon_Cygni sameAs Q13328.
• Epsilon_Cygni sameAs Q13328.
• Epsilon_Cygni sameAs Epsilon_Cygni.
• Epsilon_Cygni wasDerivedFrom Epsilon_Cygni?oldid=591220000.
• Epsilon_Cygni depiction Cygnus_IAU.svg.
• Epsilon_Cygni isPrimaryTopicOf Epsilon_Cygni.
• Epsilon_Cygni name "Epsilon Cygni".