About: RW Cygni

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RW Cygni is a semiregular variable star in the constellation Cygnus, about a degree east of 2nd magnitude γ Cygni. Its apparent magnitude varies between 8.05 and 9.70 and its spectral type between M3 and M4.

Attributes	Values
rdf:type	Thing place dbo:Location schema:Place celestial body star
rdfs:label	RW Κύκνου (el) RW Cygni (es) はくちょう座RW星 (ja) RW Cygni (en) RW Лебедя (ru)
rdfs:comment	Ο RW Κύκνου (RW Cygni) είναι μεταβλητός αστέρας που βρίσκεται στον αστερισμό Κύκνο. Είναι ερυθρός υπεργίγαντας, ορατός με κιάλια περίπου 1 μοίρα ανατολικά του αστέρα (el) RW Cygni is a semiregular variable star in the constellation Cygnus, about a degree east of 2nd magnitude γ Cygni. Its apparent magnitude varies between 8.05 and 9.70 and its spectral type between M3 and M4. (en) はくちょう座RW星（はくちょうざRWせい）は、はくちょう座に位置する脈動変光星である。 (ja) RW Лебедя — красный сверхгигант спектрального класса M3-4Ia-Iab в созвездии Лебедя. Входит в состав в звёздной ассоциации Лебедь OB9. Это одна из крупнейших известных звёзд, радиус которой в 980 раз больше солнечного. Светимость звезды в 144000 раз больше солнечной, а её масса равна 20 солнечным. Эффективная температура поверхности звезды составляет 3600 K. Является полуправильной переменной звездой, видимая звёздная величина которой изменяется в интервале от 8,05m до 9,70m. (ru) RW Cygni (RW Cyg / HIP 101023 / BD+39 4208) es una estrella variable en la constelación de Cygnus. De magnitud aparente media +8,81, se encuentra a unos 75 segundos de arco al oeste de la brillante Sadr (γ Cygni). Miembro de la Asociación estelar , la medida de su paralaje realizada por el satélite Hipparcos (1,28 milisegundos de arco), sitúa a RW Cygni a unos 2550 años luz del Sistema Solar.Otro estudio, sin embargo, eleva esta cifra hasta los 3600 años luz. (es)
foaf:name	RW Cygni (en)
foaf:depiction
dct:subject	Cygnus (constellation) Durchmusterung objects Hipparcos objects IRAS catalogue objects M-type supergiants Objects with variable star designations Semiregular variable stars 2MASS objects
Wikipage page ID	50883023 (xsd:integer)
Wikipage revision ID	1116574242 (xsd:integer)
Link from a Wikipage to another Wikipage	List of largest stars Cygnus (constellation) Durchmusterung objects Hipparcos objects IRAS catalogue objects M-type supergiants Objects with variable star designations Semiregular variable stars General Catalogue of Variable Stars OB star Effective temperature NML Cygni Apparent magnitude Light-years MK spectral classification Stellar evolution BC Cygni BI Cygni 2MASS objects Cygnus (constellation) Bolometric luminosity Asteroid Belt KY Cygni Semiregular variable star Red supergiant Mars Solar System Semiregular variable Γ Cygni Gaia Data Release 2
sameAs	RW Cygni RW Cygni RW Cygni RW Cygni RW Cygni RW Cygni RW Cygni RW Cygni RW Cygni
dbp:wikiPageUsesTemplate	dbt:Clear_left dbt:Reflist dbt:Short_description dbt:Solar_luminosity dbt:Solar_mass dbt:Solar_radius dbt:Starbox_astrometry dbt:Starbox_begin dbt:Starbox_catalogue dbt:Starbox_character dbt:Starbox_detail dbt:Starbox_end dbt:Starbox_image dbt:Starbox_observe dbt:Starbox_reference dbt:Val dbt:DEC dbt:Odlist dbt:RA dbt:Stars_of_Cygnus
thumbnail	wiki-commons:Special:FilePath/Sadr_Region_rgb.jpg?width=300
absmag v	–6.41 (en)
appmag v	8.050000 (xsd:double) (en)
caption	Region around γ Cygni, with RW Cygni annotated on the full-size image (en)
class	M3-4Ia-Iab (en)
constell	Cygnus (constellation)
epoch	J2000 (en)
luminosity	126000 (xsd:integer)
p error	0.089700 (xsd:double)

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