BI Cygni (original) (raw)
BI Cygni es una estrella supergigante roja en la constelación del Cisne. Tiene un radio de 1 240 veces el de nuestro Sol. Si se coloca en el centro de nuestro sistema solar, su superficie se extendería más allá de la órbita de Júpiter. Se encuentra a unos 5 153 años luz de la Tierra.
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| dbo:abstract | BI Cygni (BI Cyg, IRC +40408, BD+36 4025) is a red supergiant in the constellation Cygnus. It is an irregular variable star with a maximum brightness of magnitude 8.4 and a minimum of magnitude 9.9. It is considered a member of the stellar Cygnus OB1 association, its distance is around 1,400 parsecs (4,500 light-years) of the Solar System. It is less than a degree south of another variable red supergiant, BC Cygni. BI Cyg is a slow irregular variable star classified as type Lc, an irregular supergiant. Its brightness changes between extremes of magnitude 8.4 and 9.9. Frequency analysis of its light curve shows no significant periods. BI Cyg is one of the largest known stars with a radius around 1,240 R☉ based on the assumption of an effective temperature of 3,575 K and a bolometric luminosity of 226,000 L☉. More recent studies derive lower luminosities below 130,000 L☉, suggesting an initial mass of 20 M☉, and consequently lower values for the radius. (en) BI Cygni es una estrella supergigante roja en la constelación del Cisne. Tiene un radio de 1 240 veces el de nuestro Sol. Si se coloca en el centro de nuestro sistema solar, su superficie se extendería más allá de la órbita de Júpiter. Se encuentra a unos 5 153 años luz de la Tierra. (es) BI Cygni è una stella supergigante rossa situata nella costellazione del Cigno. Ha un raggio che, a seconda delle fonti, va da 1000 volte quello del nostro Sole,, a 1240 R⊙ Se posta al centro del nostro sistema solare, la sua superficie si estenderebbe oltre l'orbita di Giove. Dista circa 5153 anni luce dalla Terra. (it) BI Лебедя (IRC +40408 или BD+36 4025) — красный сверхгигант в созвездии Лебедя. Предположительно входит в состав звёздной ассоциации Лебедь OB1. Обладает радиусом в 916-1240 солнечных, что делает BI Лебедя одной из крупнейших известных звёзд. Масса звезды составляет 20 масс Солнца, а светимость больше солнечной в 123000-226000 раз. Эффективная температура поверхности звезды составляет 3575 K. Классифицируется как медленная неправильная переменная звезда. (ru) |
| dbo:thumbnail | wiki-commons:Special:FilePath/Sadr_Region_rgb.jpg?width=300 |
| dbo:wikiPageExternalLink | http://sdc.cab.inta-csic.es/omc/var/2684000059.html |
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| dbo:wikiPageWikiLink | dbr:Bonner_Durchmusterung dbr:List_of_largest_stars dbr:Light_curve dbc:Cygnus_(constellation) dbc:Durchmusterung_objects dbc:IRAS_catalogue_objects dbc:M-type_supergiants dbc:Objects_with_variable_star_designations dbc:Slow_irregular_variables dbr:NML_Cygni dbr:Apparent_magnitude dbr:Light-years dbr:Two-Micron_Sky_Survey dbr:BC_Cygni dbr:2MASS dbc:2MASS_objects dbr:Cygnus_(constellation) dbr:Parsec dbr:KY_Cygni dbr:Kelvin dbr:Red_supergiant dbr:Solar_System dbr:IRAS dbr:RW_Cygni dbr:Visual_magnitude dbr:Washington_Double_Star_Catalog dbr:Slow_irregular_variable dbr:Γ_Cygni dbr:Variable_star_designation dbr:AAVSO dbr:File:BICygLightCurve.png |
| dbp:absmagV | –6.78 (en) |
| dbp:appmagV | 8.400000 (xsd:double) |
| dbp:caption | BI Cygni is the small very red dot right on the left edge of this image. The bright star at the centre is γ Cygni and north is to the right. (en) |
| dbp:class | M4 Iab (en) |
| dbp:component | 2015 (xsd:integer) 2016 (xsd:integer) |
| dbp:constell | dbr:Cygnus_(constellation) |
| dbp:credit | Erik Larsen (en) |
| dbp:epoch | J2000 (en) |
| dbp:gravity | -0.350000 (xsd:double) |
| dbp:luminosity | 64000 (xsd:integer) |
| dbp:mass | 6.300000 (xsd:double) |
| dbp:metalFe | +0.40 (en) |
| dbp:noHeading | y (en) |
| dbp:pError | 0.081100 (xsd:double) |
| dbp:parallax | 0.726900 (xsd:double) |
| dbp:radius | 797 (xsd:integer) |
| dbp:variable | dbr:Slow_irregular_variable |
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| dcterms:subject | dbc:Cygnus_(constellation) dbc:Durchmusterung_objects dbc:IRAS_catalogue_objects dbc:M-type_supergiants dbc:Objects_with_variable_star_designations dbc:Slow_irregular_variables dbc:2MASS_objects |
| rdf:type | owl:Thing dbo:Place dbo:Location schema:Place dbo:CelestialBody dbo:Star |
| rdfs:comment | BI Cygni es una estrella supergigante roja en la constelación del Cisne. Tiene un radio de 1 240 veces el de nuestro Sol. Si se coloca en el centro de nuestro sistema solar, su superficie se extendería más allá de la órbita de Júpiter. Se encuentra a unos 5 153 años luz de la Tierra. (es) BI Cygni è una stella supergigante rossa situata nella costellazione del Cigno. Ha un raggio che, a seconda delle fonti, va da 1000 volte quello del nostro Sole,, a 1240 R⊙ Se posta al centro del nostro sistema solare, la sua superficie si estenderebbe oltre l'orbita di Giove. Dista circa 5153 anni luce dalla Terra. (it) BI Лебедя (IRC +40408 или BD+36 4025) — красный сверхгигант в созвездии Лебедя. Предположительно входит в состав звёздной ассоциации Лебедь OB1. Обладает радиусом в 916-1240 солнечных, что делает BI Лебедя одной из крупнейших известных звёзд. Масса звезды составляет 20 масс Солнца, а светимость больше солнечной в 123000-226000 раз. Эффективная температура поверхности звезды составляет 3575 K. Классифицируется как медленная неправильная переменная звезда. (ru) BI Cygni (BI Cyg, IRC +40408, BD+36 4025) is a red supergiant in the constellation Cygnus. It is an irregular variable star with a maximum brightness of magnitude 8.4 and a minimum of magnitude 9.9. It is considered a member of the stellar Cygnus OB1 association, its distance is around 1,400 parsecs (4,500 light-years) of the Solar System. It is less than a degree south of another variable red supergiant, BC Cygni. (en) |
| rdfs:label | BI Cygni (es) BI Cygni (en) BI Cygni (it) BI Лебедя (ru) |
| owl:sameAs | yago-res:BI Cygni wikidata:BI Cygni dbpedia-es:BI Cygni dbpedia-it:BI Cygni dbpedia-mk:BI Cygni dbpedia-ru:BI Cygni dbpedia-simple:BI Cygni https://global.dbpedia.org/id/2LrkN |
| prov:wasDerivedFrom | wikipedia-en:BI_Cygni?oldid=1116574305&ns=0 |
| foaf:depiction | wiki-commons:Special:FilePath/Red_circle.svg wiki-commons:Special:FilePath/BICygLightCurve.png wiki-commons:Special:FilePath/Sadr_Region_rgb.jpg |
| foaf:isPrimaryTopicOf | wikipedia-en:BI_Cygni |
| foaf:name | BI Cygni (en) |
| is dbo:wikiPageWikiLink of | dbr:List_of_largest_known_stars dbr:BC_Cygni dbr:RW_Cygni |
| is foaf:primaryTopic of | wikipedia-en:BI_Cygni |
