About: Upsilon1 Centauri

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Upsilon1 Centauri, Latinized from υ1 Centauri, is a single star in the southern constellation of Centaurus. It has a blue-white hue and is visible to the naked eye with an apparent visual magnitude of +3.87. The distance to this object is approximately 427 light years based on parallax, and is receding with a radial velocity of +9 km/s. It is a member of the Lower Centaurus Crux group of the Scorpius–Centaurus association.

Attributes	Values
rdf:type	Thing place dbo:Location schema:Place celestial body yago:WikicatBayerObjects yago:WikicatSubgiantStars yago:CelestialBody109239740 yago:NaturalObject100019128 yago:Object100002684 yago:PhysicalEntity100001930 star yago:Star109444100 yago:Whole100003553
rdfs:label	Upsilon1 Centauri (it) Upsilon1 Centauri (fr) Ypsilon1 Centauri (pl) Upsilon1 Centauri (pt) Upsilon1 Centauri (en) Ypsilon1 Centauri (sv) 柱一 (角宿) (zh)
rdfs:comment	Upsilon1 Centauri (υ1 Cen, υ1 Centauri) est une étoile de la constellation du Centaure. υ1 Centauri est une sous-géante bleue-blanche de type B avec une magnitude apparente de +3,87. Elle est à environ 427 années-lumière de la Terre. L'étoile est membre du groupe Haut-Centaure Loup de l'association Scorpion-Centaure, qui est l'association d'étoiles massives de types O et B la plus proche du Système solaire. (fr) Upsilon1 Centauri (υ1 Centauri / υ1 Cen) è una stella nella costellazione del Centauro di magnitudine apparente +3,85 distante 417 anni luce dal sistema solare. Di tipo spettrale B, viene indicata come avente la classe di luminosità IV o V, ossia si suppone che sia una subgigante o stella bianco-azzurra di sequenza principale. Ha una massa stimata in 8 volte quella solare, con un raggio 3,7 volte superiore. La sua superficie, avente una temperatura di 21000 K, emana 2750 volte più luce del Sole. (it) Ypsilon1 Centauri (υ1 Cen) – gwiazda w gwiazdozbiorze Centaura. υ1 Centauri jest błękitnym podolbrzymem o jasności obserwowanej +3,87m. Oddalona jest o około 418 lat świetlnych od Słońca. (pl) Ypsilon1 Centauri ( υ1 Centauri, förkortat Ypsilon1 Cen, υ1 Cen) som är stjärnans Bayerbeteckning, är en ensam stjärna belägen i den östra delen av stjärnbilden Kentauren. Den har en skenbar magnitud på 3,87 och är synlig för blotta ögat där ljusföroreningar ej förekommer. Baserat på parallaxmätning inom Hipparcosuppdraget på ca 7,6 mas, beräknas den befinna sig på ett avstånd på ca 427 ljusår (ca 131 parsek) från solen. (sv) 柱一(半人馬座υ1) 是位於南半球星座半人馬座的一顆恆星，意思是支撐庫樓的第一根柱子。它呈現藍白色的色調，視星等 +3.87，是肉眼可見的恆星。根據視差的測量，它與地球的距離約為427光年，並且以 +9km/s 的徑向速度退行。它是天蠍-半人馬星協的下半人馬-南十字的成員。它的恆星分類是B2IV/V，這與大質量的B型恆星和光度分類是主序星和次巨星混和特徵的恆星。它的年齡是1,300萬，投影旋轉速度為124km/s。這顆恆星的質量是太陽的7.9倍，半徑是太陽的3.7倍。它的輻射量是太陽輻射的1,884倍，是由它的光球有效溫度21,411K導出的。 (zh) Upsilon1 Centauri, Latinized from υ1 Centauri, is a single star in the southern constellation of Centaurus. It has a blue-white hue and is visible to the naked eye with an apparent visual magnitude of +3.87. The distance to this object is approximately 427 light years based on parallax, and is receding with a radial velocity of +9 km/s. It is a member of the Lower Centaurus Crux group of the Scorpius–Centaurus association. (en) Upsilon1 Centauri (υ1 Cen, υ1 Centauri) é uma estrela na constelação de Centaurus. Tem uma magnitude aparente visual de 3,87, sendo visível a olho nu exceto em locais com poluição luminosa excessiva. De acordo com sua paralaxe, está localizada a aproximadamente 427 anos-luz (131 parsecs) da Terra. (pt)
foaf:name	υ1 Centauri (en)
dct:subject	B-type main-sequence stars B-type subgiants Bayer objects Bright Star Catalogue objects Durchmusterung objects Henry Draper Catalogue objects Hipparcos objects Centaurus (constellation) Lower Centaurus Crux
Wikipage page ID	5111385 (xsd:integer)
Wikipage revision ID	1122406284 (xsd:integer)
Link from a Wikipage to another Wikipage	B-type star Stellar classification B-type main-sequence stars B-type subgiants Bayer objects Bright Star Catalogue objects Durchmusterung objects Henry Draper Catalogue objects Hipparcos objects Constellation Photosphere Effective temperature Light year Main sequence Star Stellar parallax Centaurus Latinisation of names Centaurus (constellation) Lower Centaurus Crux Apparent visual magnitude Radial velocity Scorpius–Centaurus association Luminosity class Mass of the Sun Subgiant star Sun's radius Projected rotational velocity Luminosity of the Sun
sameAs	Upsilon1 Centauri Upsilon1 Centauri Upsilon1 Centauri Upsilon1 Centauri Upsilon1 Centauri Upsilon1 Centauri Upsilon1 Centauri Upsilon1 Centauri Upsilon1 Centauri Upsilon1 Centauri Upsilon1 Centauri
dbp:wikiPageUsesTemplate	dbt:! dbt:Other_stars_by_Bayer_designation dbt:Reflist dbt:Short_description dbt:Starbox_astrometry dbt:Starbox_begin dbt:Starbox_catalog dbt:Starbox_character dbt:Starbox_detail dbt:Starbox_end dbt:Starbox_observe dbt:Starbox_reference dbt:Val dbt:DEC dbt:Odlist dbt:RA dbt:Stars_of_Centaurus
absmag v	−1.72 (en)
appmag v	+3.87 (en)
class	B2 IV/V (en)

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