About: Theta2 Crucis

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Theta2 Crucis, Latinized from θ2 Crucis, is a spectroscopic binary star in the constellation Crux. This pair of stars complete an orbit every 3.4280 days and they have a low orbital eccentricity that is close to 0.0. Theta2 Crucis is located at about 690 light-years from the Sun.

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rdf:type	Thing place dbo:Location schema:Place celestial body yago:WikicatBayerObjects yago:WikicatBetaCepheiVariables yago:WikicatBinaryStars yago:WikicatSpectroscopicBinaries yago:WikicatStars yago:WikicatSubgiantStars yago:BinaryStar109221070 yago:CelestialBody109239740 yago:NaturalObject100019128 yago:Object100002684 yago:PhysicalEntity100001930 star yago:Star109444100 yago:Thing100002452 yago:Variable109468959 yago:Whole100003553
rdfs:label	Theta2 Crucis (es) Theta2 Crucis (fr) Theta2 Crucis (pt) Theta2 Crucis (en) Тета² Южного Креста (ru) Theta2 Crucis (sv) 南十字座θ2 (zh)
rdfs:comment	Тета² Южного Креста (θ2 Cru / Theta2 Crucis) — двойная звезда в созвездии Южного Креста. Пара звёзд совершает оборот по своей орбите за 3.4280 дня, эксцентриситет орбиты близок к 0.0. Theta2 удалена на примерно 750 световых лет от Солнца. Общая видимая звёздная величина +4.72m (видна невооружённым глазом). Так как это переменная типа β Цефея, то её звёздная величина не постоянна и меняется между +4.70m и +4.74m с периодом 0.0889 дня. Система классифицируется как бело-голубой субгигант класса B2 IV. (ru) Theta2 Crucis (θ2 Crucis, förkortat Theta2 Cru, θ2 Cru) som är stjärnans Bayerbeteckning, är en dubbelstjärna belägen i den sydvästra delen av stjärnbilden Södra korset. Den har en genomsnittlig skenbar magnitud på 4,72 och är synlig för blotta ögat där ljusföroreningar ej förekommer. Baserat på parallaxmätning inom Hipparcosuppdraget på ca 3,8 mas, beräknas den befinna sig på ett avstånd på ca 850 ljusår (ca 260 parsek) från solen. (sv) 南十字座θ2，拉丁文是θ2 Crucis，是在南十字座的一對光譜聯星。它們的完整軌道週期是3.4280天，軌道離心率非常低，趨近於0.0。南十字座θ2與太陽的距離約750光年。該系統組合的平均視星等為+4.72m。由於其中有一顆是仙王座β型變星，星等在+4.70m和+4.74m之間稍有變化，使得星等不能固定，這個變化的週期是0.0889天。這個系統被歸類為藍白的B型主序星，恆星光譜為B3V。 (zh) Theta2 Crucis (θ2 Cru) es una estrella en la constelación de la Cruz del Sur de magnitud aparente +4,72.Comparte la denominación de Bayer «Theta» con Theta1 Crucis, siendo la separación visual entre ambas estrellas de 12,5 minutos de arco.No están físicamente relacionadas, pues mientras Theta2 Crucis se encuentra a 854 ± 78 años luz del Sistema Solar, Theta1 Crucis se halla unas tres veces más cerca. (es) θ2 Crucis (θ2 Cru / Theta2 Crucis) est une étoile binaire spectroscopique de la constellation de la Croix du Sud. Cette paire d'étoiles accomplit une orbite en 3,4280 jours ; elle possède une faible excentricité, voisine de 0. Elle se situe à environ 850 années-lumière du Soleil. (fr) Theta2 Crucis, Latinized from θ2 Crucis, is a spectroscopic binary star in the constellation Crux. This pair of stars complete an orbit every 3.4280 days and they have a low orbital eccentricity that is close to 0.0. Theta2 Crucis is located at about 690 light-years from the Sun. (en) Theta2 Crucis (θ2 Cru, θ2 Crucis) é uma estrela na constelação de Crux. Com uma magnitude aparente de 4,718, é visível a olho nu em boas condições de visualização. De acordo com sua paralaxe, está localizada a cerca de 690 anos-luz (210 parsecs) do Sol. (pt)
foaf:name	θ2 Crucis (en)
dcterms:subject	B-type subgiants Bayer objects Beta Cephei variables Bright Star Catalogue objects Durchmusterung objects Henry Draper Catalogue objects Hipparcos objects Spectroscopic binaries Crux (constellation)
Wikipage page ID	8761882 (xsd:integer)
Wikipage revision ID	1079516965 (xsd:integer)
Link from a Wikipage to another Wikipage	Beta Cephei variable Orbit Stellar classification B-type subgiants Bayer objects Beta Cephei variables Bright Star Catalogue objects Durchmusterung objects Henry Draper Catalogue objects Hipparcos objects Spectroscopic binaries Constellation Cordoba Durchmusterung Crux Apparent magnitude Light-year Smithsonian Astrophysical Observatory Star Latinisation of names Henry Draper catalogue Crux (constellation) Sun Spectroscopic binary Orbital eccentricity Variable star B-type main sequence star Harvard Revised catalogue Hipparcos catalogue
sameAs	Theta2 Crucis Theta2 Crucis Theta2 Crucis Theta2 Crucis Theta2 Crucis Theta2 Crucis Theta2 Crucis Theta2 Crucis Theta2 Crucis Theta2 Crucis Theta2 Crucis Theta2 Crucis
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