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天壇座V539，又名CP-53 8799，HD 161783、SAO 245065、HR 6622，是天壇座的一颗恒星，视星等为5.92，位于銀經338.94，銀緯-13.2，其B1900.0坐标为赤經17h 42m 20s，赤緯-53° -13.2′ 45″。
, Ni¹ de l'Altar (ν¹ Arae) és un sistema est … Ni¹ de l'Altar (ν¹ Arae) és un sistema estel·lar triple a uns 820 anys-llum de la Terra. El component primari, ν¹ de l'Altar A, és una binària eclipsant de la qual els dos components són nanes de la seqüència principal blaves-blanques del tipus B que no omplen els lòbuls de Roche. Una tercera companya de la 9a magnitud ν¹ de l'Altar C, orbita el sistema binari a uns 12,3 segons d'arc. L'esclat mitjà del sistema és +5,67, però degut als eclipses, ν¹ de l'Altar és una estrella variable i la seva lluentor varia de la magnitud +5,66 a +6,18 amb un període igual al període orbital de la binària, que és de 3,17 dies. El sistema és esmentat a vegades com a Ípsilon ¹ de l'Altar (υ¹ Arae).ades com a Ípsilon ¹ de l'Altar (υ¹ Arae).
, V539 Arae (Bayer designation Nu1 Arae (ν1 … V539 Arae (Bayer designation Nu1 Arae (ν1 Arae / ν1 Ara)) is a triple star system in the southern constellation of Ara. Based upon an annual parallax shift of 3.30 ± 0.47, this system is at a distance of roughly 1,000 light-years (310 parsecs) from Earth. The core members of this system, ν1 Ara AB, consist of a pair of B-type main-sequence stars in a close orbit with a period of 3.169 days and an eccentricity of 0.06. Their respective stellar classifications are B2 V and B3 V, and they have a combined visual magnitude of 5.65. Because the orbital plane lies close to the line of sight from the Earth, this pair form a detached eclipsing binary of the Algol type. The eclipse of the primary causes a decrease of 0.52 in magnitude, while the secondary eclipse decreases the magnitude by 0.43. At an angular separation of 12.34 arcseconds, is the tertiary component of this system; a magnitude 9.40 A-type main-sequence star with a classification of A1 V. The system is sometimes referred as Upsilon1 Arae (υ1 Arae), and more generally unlettered. (υ1 Arae), and more generally unlettered.
, Nu1 Arae (ν1 Ara / ν1 Arae) è una stella bianco-azzurra nella sequenza principale di magnitudine 5,71 situata nella costellazione dell'Altare. Dista 965 anni luce dal sistema solare.
, Nu1 Arae (ν1 Arae / ν1 Ara) é um sistema e … Nu1 Arae (ν1 Arae / ν1 Ara) é um sistema estelar triplo na constelação de Ara. Com base em uma paralaxe anual de 3,30 ± 0,47 milissegundos de arco, está a uma distância de aproximadamente 1 000 anos-luz (300 parsecs) da Terra. Tem uma magnitude aparente combinada de 5,62, sendo visível a olho nu em boas condições de visualização. Os membros principais do sistema, ν1 Ara AB, são um par de estrelas de classe B da sequência principal em uma órbita próxima com um período de 3,169 dias e uma excentricidade de 0,06. Possuem uma classificação estelar de B2 V e B3 V e uma magnitude aparente combinada de 5,65. Como o plano orbital do sistema está alinhado à linha de visão da Terra, o par forma uma binária eclipsante do . O eclipse do componente A diminui o brilho do sistema por 0,52, enquanto o eclipse do componente B diminui por 0,43. A uma separação de 12,34 segundos de arco está o componente terciário do sitema; uma estrela de classe A da sequência principal com uma magnitude de 9,40 e uma classificação de A1 V.itude de 9,40 e uma classificação de A1 V.
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| rdfs:comment |
天壇座V539，又名CP-53 8799，HD 161783、SAO 245065、HR 6622，是天壇座的一颗恒星，视星等为5.92，位于銀經338.94，銀緯-13.2，其B1900.0坐标为赤經17h 42m 20s，赤緯-53° -13.2′ 45″。
, V539 Arae (Bayer designation Nu1 Arae (ν1 … V539 Arae (Bayer designation Nu1 Arae (ν1 Arae / ν1 Ara)) is a triple star system in the southern constellation of Ara. Based upon an annual parallax shift of 3.30 ± 0.47, this system is at a distance of roughly 1,000 light-years (310 parsecs) from Earth. The system is sometimes referred as Upsilon1 Arae (υ1 Arae), and more generally unlettered. (υ1 Arae), and more generally unlettered.
, Ni¹ de l'Altar (ν¹ Arae) és un sistema est … Ni¹ de l'Altar (ν¹ Arae) és un sistema estel·lar triple a uns 820 anys-llum de la Terra. El component primari, ν¹ de l'Altar A, és una binària eclipsant de la qual els dos components són nanes de la seqüència principal blaves-blanques del tipus B que no omplen els lòbuls de Roche. Una tercera companya de la 9a magnitud ν¹ de l'Altar C, orbita el sistema binari a uns 12,3 segons d'arc. L'esclat mitjà del sistema és +5,67, però degut als eclipses, ν¹ de l'Altar és una estrella variable i la seva lluentor varia de la magnitud +5,66 a +6,18 amb un període igual al període orbital de la binària, que és de 3,17 dies.rbital de la binària, que és de 3,17 dies.
, Nu1 Arae (ν1 Ara / ν1 Arae) è una stella bianco-azzurra nella sequenza principale di magnitudine 5,71 situata nella costellazione dell'Altare. Dista 965 anni luce dal sistema solare.
, Nu1 Arae (ν1 Arae / ν1 Ara) é um sistema e … Nu1 Arae (ν1 Arae / ν1 Ara) é um sistema estelar triplo na constelação de Ara. Com base em uma paralaxe anual de 3,30 ± 0,47 milissegundos de arco, está a uma distância de aproximadamente 1 000 anos-luz (300 parsecs) da Terra. Tem uma magnitude aparente combinada de 5,62, sendo visível a olho nu em boas condições de visualização.olho nu em boas condições de visualização.
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Nu1 Arae
, V539 Arae
, 天壇座V539
, Ni1 de l'Altar
|
