About: Tau4 Eridani

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Tau4 Eridani (τ4 Eridani, τ4 Eri) is a binary star system in the constellation Eridanus. It is visible to the naked eye with an apparent visual magnitude of 3.65. The distance to this star can be estimated using the parallax method, which yields a value of roughly 300 light years. This is most likely a binary star system. The companion is a magnitude 9.5 star at an angular separation of 5.7″ along a position angle of 291°, as of 2013.

Attributes	Values
rdf:type	Thing place dbo:Location schema:Place celestial body yago:WikicatBayerObjects yago:WikicatBinaryStars yago:WikicatM-typeStars yago:WikicatSemiregularVariableStars yago:WikicatStars yago:BinaryStar109221070 yago:CelestialBody109239740 yago:NaturalObject100019128 yago:Object100002684 yago:PhysicalEntity100001930 yago:WikicatK-typeMain-sequenceStars ship star yago:Star109444100 yago:VariableStar109469152 yago:Whole100003553
rdfs:label	Tau4 Eridani (es) Tau4 Eridani (in) Tau4 Eridani (fr) Tau4 Eridani (it) Tau4 Eridani (pt) Tau4 Eridani (en) Tau4 Eridani (sv) 天苑十一 (zh)
rdfs:comment	Tau4 Eridani (τ4 Eri / τ4 Eri) adalah bintang dengan kelas M3.5III, di rasi Eridanus. Bintang ini merupakan bintang ganda yang keseluruhan komponennya berkelas M. Komponen yang lebih terang merupakan bintang raksasa kelas M dengan magnitudo 3.66, bercahaya jauh lebih terang daripada Matahari. Bintang ini berada pada jarak 258 tahun cahaya dari Bumi. (in) Tau4 Eridani (τ4 Eri) est une étoile de quatrième magnitude et de type M3.5III de la constellation de l'Éridan. Tau4 Eridani est une étoile binaire constituée de composantes de type M, la composante la plus brillante étant une géante de type M de magnitude apparente 3,66, ayant une masse et une luminosité bien supérieures à celles du Soleil. Elle est parfois éclipsée par d'autres composantes stellaires du système de manière similaire à Algol. Le système est situé à environ 260 années-lumière de la Terre. (fr) Tau4 Eridani (Tau4 Eri) è una stella situata nella costellazione dell'Eridano. La sua magnitudine apparente è +3,66 e dista 304 anni luce dal sistema solare. (it) Tau4 Eridani (τ4 Eridani, förkortat Tau4 Eri, τ4 Eri) som är stjärnans Bayerbeteckning, är en dubbelstjärna belägen i den mellersta delen av stjärnbilden Eridanus. Den har en skenbar magnitud på 3,65, är synlig för blotta ögat där ljusföroreningar ej förekommer. Baserat på parallaxmätning inom Hipparcosuppdraget på ca 10,7 mas, beräknas den befinna sig på ett avstånd på ca 300 ljusår (ca 93 parsek) från solen. (sv) Tau4 Eridani (16 Eridani) é uma estrela na direção da constelação de Eridanus. Possui uma ascensão reta de 03h 19m 30.97s e uma declinação de −21° 45′ 28.6″. Sua magnitude aparente é igual a 3.70. Considerando sua distância de 258 anos-luz em relação à Terra, sua magnitude absoluta é igual a −0.79. Pertence à classe espectral M3/M4III. (pt) 天苑十一（波江座τ4）是位于波江座的双星系统，其视星等为3.65。 (zh) Tau4 Eridani (τ4 Eri / 16 Eridani) es la octava estrella más brillante de la constelación de Eridanus. De magnitud aparente +3,66, se encuentra a 258 años luz de distancia del Sistema Solar. Tau4 Eridani es una gigante roja de tipo espectral M3.5IIIb cuya temperatura superficial estimada es de 3575 K.Su luminosidad bolométrica —la mayor parte de su radiación es emitida como luz infrarroja— es 1110 veces superior a la del Sol.Su temperatura y luminosidad permiten evaluar su diámetro, siendo éste 87 veces más grande que el diámetro solar.Asimismo, la medida de su diámetro angular, 10,71 ± 0,54 milisegundos de arco, da lugar a un valor para su radio 90 veces más grande que el del Sol, en concordancia con el valor obtenido de acuerdo a modelos teóricos. (es) Tau4 Eridani (τ4 Eridani, τ4 Eri) is a binary star system in the constellation Eridanus. It is visible to the naked eye with an apparent visual magnitude of 3.65. The distance to this star can be estimated using the parallax method, which yields a value of roughly 300 light years. This is most likely a binary star system. The companion is a magnitude 9.5 star at an angular separation of 5.7″ along a position angle of 291°, as of 2013. (en)
foaf:name	τ4 Eridani (en)
foaf:depiction
dct:subject	Asymptotic-giant-branch stars Bayer objects Binary stars Bright Star Catalogue objects Durchmusterung objects Eridanus (constellation) Flamsteed objects Henry Draper Catalogue objects Hipparcos objects M-type giants Slow irregular variables
Wikipage page ID	7688863 (xsd:integer)
Wikipage revision ID	1121449494 (xsd:integer)
Link from a Wikipage to another Wikipage	Bayer designation Binary star Bonner Durchmusterung Stellar classification Asymptotic-giant-branch stars Bayer objects Binary stars Bright Star Catalogue objects Durchmusterung objects Eridanus (constellation) Flamsteed objects Henry Draper Catalogue objects Hipparcos objects M-type giants Slow irregular variables Constellation Effective temperature Arc second Light year Stellar evolution Stellar atmosphere Stellar parallax Solar radius Eridanus (constellation) Angular diameter Bright Star Catalogue Red giant Henry Draper catalogue Hipparcos Asymptotic giant branch International Celestial Reference System J2000.0 Angular separation Solar luminosity Position angle Apparent visual magnitude Smithsonian Astrophysical Observatory Star Catalog Flamsteed designation Slow irregular variable Milliarcsecond
sameAs	Tau4 Eridani Tau4 Eridani Tau4 Eridani Tau4 Eridani Tau4 Eridani

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