Q Scorpii (original) (raw)
Q Scorpii (en abrégé Q Sco) est une étoile de la constellation du Scorpion, de magnitude apparente +4,27. On pense qu'elle est une étoile binaire, même si son éventuel compagnon n'a pas encore été détecté.
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| dbo:abstract | Q Scorpii (Q Sco) es una estrella de la constelación de Escorpio.Tiene magnitud aparente +4,27 y se encuentra a 166 años luz de distancia del Sistema Solar. Q Scorpii es una gigante naranja de tipo espectral K0IIIb con una temperatura superficial de 4596 K.Con una luminosidad equivalente a la de 44 soles, su masa solo es un 30% mayor que la masa solar.La medida de su diámetro angular —2,15 ± 0,13 milisegundos de arco— permite evaluar su diámetro real, resultando ser unas 12 veces más grande que el diámetro solar, un tamaño relativamente habitual en esta clase de estrellas.Sus características son parecidas a las de otras conocidas gigantes de tipo K como Pólux (β Geminorum), Menkent (θ Centauri) o φ2 Orionis, si bien la mayor distancia a la que se halla Q Scorpii hace que sea menos brillante que estas. Q Scorpii muestra una metalicidad —abundancia relativa de elementos más pesados que el helio— menor que la del Sol ([M/H] = -0,22).Igualmente, su abundancia relativa de hierro es aproximadamente la mitad que la solar. Elementos como calcio, níquel y bario siguen la misma pauta mientras que, por el contrario, el contenido de sodio es semejante al del Sol. Se piensa que Q Scorpii puede ser una estrella binaria, si bien nada se sabe sobre su posible acompañante. (es) Q Scorpii (en abrégé Q Sco) est une étoile de la constellation du Scorpion, de magnitude apparente +4,27. On pense qu'elle est une étoile binaire, même si son éventuel compagnon n'a pas encore été détecté. (fr) Q Scorpii, also designated as HD 159433, is an astrometric binary (100% chance) located in the southern zodiac constellation Scorpius. It has an apparent magnitude of 4.27, making it readily visible to the naked eye under ideal conditions. It lies in the tail of Scorpius, between the stars λ Scorpii and μ Scorpii and is located 7′ away from the faint globular cluster Tonantzintla 2. Based on parallax measurements from Gaia DR3, the system is estimated to be 158 light years distant, but is approaching the Solar System with a heliocentric radial velocity of −49 km/s. The visible component is a red giant with a stellar classification of K0 IIIb. The IIIb luminosity class indicates that it is a lower luminosity giant star. Q Scorpii is a red clump star located on the cool end of the horizontal branch, fusing helium at its core. It has 110% the mass of the Sun but has expanded to 12.4 times its girth. It radiates 62 times the luminosity of the Sun from its photosphere at an effective temperature of 4,605 K, giving it an orange hue. Q Scorpii has an iron abundance half of the Sun's, making it metal deficient. Like most giant stars, it spins slowly, having a projected rotational velocity lower than 1 km/s. (en) HD 159433 (Q Scorpii) é uma estrela na direção da Scorpius. Possui uma ascensão reta de 17h 36m 32.85s e uma declinação de −38° 38′ 05.5″. Sua magnitude aparente é igual a 4.26. Considerando sua distância de 144 anos-luz em relação à Terra, sua magnitude absoluta é igual a 1.03. Pertence à classe espectral G8/K0III/IV. (pt) HD 159433，又名CD-3812044，SAO 209019、HR 6546，是一颗恒星，视星等为4.29，位于銀經350.77，銀緯-3.53，其B1900.0坐标为赤經17h 29m 39.5s，赤緯-38° -3.53′ 52″。 (zh) |
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| dbp:absmagV | +0.67 (en) |
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| dbp:bV | +1.08 (en) |
| dbp:class | K0 IIIb (en) |
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| dbp:luminosity | 62.200000 (xsd:double) |
| dbp:mass | 1.100000 (xsd:double) |
| dbp:metalFe | −0.28 (en) |
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| dbp:propMoDec | −218.275 (en) |
| dbp:propMoRa | −16.762 (en) |
| dbp:radialV | −49 (en) |
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| dbp:rotationalVelocity | <1 (en) |
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| dbp:type | dbr:Horizontal_branch |
| dbp:uB | +0.90 (en) |
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| rdfs:comment | Q Scorpii (en abrégé Q Sco) est une étoile de la constellation du Scorpion, de magnitude apparente +4,27. On pense qu'elle est une étoile binaire, même si son éventuel compagnon n'a pas encore été détecté. (fr) HD 159433 (Q Scorpii) é uma estrela na direção da Scorpius. Possui uma ascensão reta de 17h 36m 32.85s e uma declinação de −38° 38′ 05.5″. Sua magnitude aparente é igual a 4.26. Considerando sua distância de 144 anos-luz em relação à Terra, sua magnitude absoluta é igual a 1.03. Pertence à classe espectral G8/K0III/IV. (pt) HD 159433，又名CD-3812044，SAO 209019、HR 6546，是一颗恒星，视星等为4.29，位于銀經350.77，銀緯-3.53，其B1900.0坐标为赤經17h 29m 39.5s，赤緯-38° -3.53′ 52″。 (zh) Q Scorpii (Q Sco) es una estrella de la constelación de Escorpio.Tiene magnitud aparente +4,27 y se encuentra a 166 años luz de distancia del Sistema Solar. Q Scorpii es una gigante naranja de tipo espectral K0IIIb con una temperatura superficial de 4596 K.Con una luminosidad equivalente a la de 44 soles, su masa solo es un 30% mayor que la masa solar.La medida de su diámetro angular —2,15 ± 0,13 milisegundos de arco— permite evaluar su diámetro real, resultando ser unas 12 veces más grande que el diámetro solar, un tamaño relativamente habitual en esta clase de estrellas.Sus características son parecidas a las de otras conocidas gigantes de tipo K como Pólux (β Geminorum), Menkent (θ Centauri) o φ2 Orionis, si bien la mayor distancia a la que se halla Q Scorpii hace que sea menos bri (es) Q Scorpii, also designated as HD 159433, is an astrometric binary (100% chance) located in the southern zodiac constellation Scorpius. It has an apparent magnitude of 4.27, making it readily visible to the naked eye under ideal conditions. It lies in the tail of Scorpius, between the stars λ Scorpii and μ Scorpii and is located 7′ away from the faint globular cluster Tonantzintla 2. Based on parallax measurements from Gaia DR3, the system is estimated to be 158 light years distant, but is approaching the Solar System with a heliocentric radial velocity of −49 km/s. (en) |
| rdfs:label | Q Scorpii (es) Q Scorpii (fr) Q Scorpii (en) HD 159433 (pt) 尾宿增三 (zh) |
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| foaf:name | Q Scorpii (en) |
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