Cependant, depuis moins massive que Beta Scorpii A1, il est lié à vivre plus longtemps, peut-être 50 millions d'années. And it's much deserved… Il a été émis l'hypothèse[9] que le composant B a un compagnon beaucoup plus faible, appelé Beta Scorpii G, ainsi que le composant et peut lui-même être une étoile double. CallUrl('stars>astro>illinois>eduhtml',0), It is located in the northeast part (15:19:26.8-07:43:20.2, ICRS 2000.0) of Constellation Libra, the Scales -- northeast of Delta Librae, north of Gamma Librae and Graffias (Beta Scorpii), and southwest of Epsilon (Yed Posterior) and Delta (Yed Prior) Ophiuchi, and Mu, Epsilon, and Alpha (Unukalhai) Serpentis.
L'Association supérieure Scorpion, qui comprend les étoiles placées à la tête du Scorpion, est le plus jeune des trois sous-groupe, ayant un âge d'environ 5 millions d'années. CallUrl('www>davidmalin>comhtml',0), The brightest star in Scorpius is Antares, a red supergiant star that is about 500 light-years away from Earth and is about 230 times as big as the Sun. Graffias, a title for this star Acrab, generally is said to be of unknown derivation; but since Greek Grapsaios signifies "Crab," it may be that here lies the origin of the title, for it is well known that the ideas and words for crab and scorpion were almost interchangeable in early days, from the belief that the latter creature was generated from the former [note by Allen: This was held even by the learned Saints …

Apparent Magnitude is also known as Visual Magnitude. Ceci est déduit du fait que, parmi les relations entre les masses et la luminosité est régie par la relation suivante: La Beta Scorpii par Occultation de Jupiter et Io. Graffias fait également partie de 'astérisme la Crochet Big, avec Antares et Dschubba. All five except perhaps for the faint companion of Beta-2 are hot B stars, vividly showing their propensity for multiple birth.

CallUrl('www>topastronomer>comphp',0), Scorpius has many bright stars, including Antares (α Sco), ~TildeLink() (β1 Sco), Dschubba (δ Sco), Sargas (θ Sco), Shaula (λ Sco), Jabbah (ν Sco), Girtab (ξ Sco), Iclil (π Sco), Alniyat (a name shared by two stars: σ Sco and τ Sco) and Lesath (υ Sco). The source of the information if it has a Hip I.D. satellite operation launched in 1989 for four years. Slow Exoplanets. Par conséquent, même Beta Scorpii A2 est né il y a 5-6 millions d'années. Il pourrait être une étoile de type spectral B, avec une masse d'environ 6 M☉.

Acrab appears as a binary star composed of two hot, B-class stars that are suspected spectroscopic binaries themselves. Il est peut-être d'une étoile avec une masse similaire à celle du Soleil[9].

Location and conditions: Haifa city, Israel, ~3.5mag.

Graffias ("claws") is a traditional name for several stars in the constellations between Scorpius and Libra. The star has been identified as being a multi-star system, one in which there is at least one star in close orbit to another star or two or more stars orbiting a central point. The information was obtained as of 12th Feb 2017. Comme le premier, il est bleu. Graffias, on the right, on the left "claw" of Scorpio. D'autres enquêtes ont été utilisées méthodes spectroscopiques[3]. The map was generated using Night Vision, an awesome free application by Brian Simpson. The source of the info is Simbad. The items in red are values that I've calculated so they could well be wrong. [7522]-[7553] beta Scorpii, also known as Graffias ("claws") and Acrab ("scorpion"), is another multiple star system.The Chinese called it the Fourth Star of the Room. Graffias a été appelé par les Chinois 宿 四, Tien Sze, ce qui signifie le char à quatre chevaux dans le ciel et il était adoré par les Chevaliers. Les deux composants ont répondu qu'ils orbite autour de l'autre dans au moins 16.000 ans. Both this and the other star that is referred to as Graffias are in the same constellation.

Le secondaire serait donc d'environ trois fois et demie moins brillant que le primaire. CallUrl('www>solstation>comhtm',0), The image will be even more obvious if the chart's lines from Antares (α Sco) to Graffias (β Sco) and Pi Scorpii (π Sco) are replaced with a line from Graffias through Dschubba (δ Sco) to Pi forming a large capped "J." Bien que son rayon est un peu inférieur à celui du compagnon (4,0 ± 0,3 R☉), Ainsi que sa masse, qui est estimé à 9,5 ± 0,4 fois celle du Soleil[4]. Pour Graffias chinois fait partie de Xiu Fang, ce qui signifie maison ou chambre, avec Dschubba, à Pi Scorpii et Rho Scorpii.

The nearest companion star orbits at about the same distance our Sun is to Uranus.


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