Scorpius is best known for being home to the red supergiant Antares, the 15th brightest star in the sky, and for the Fish Hook asterism, formed by Antares with the fainter Acrab, Dschubba and Fang, that outlines the scorpion’s claws. The star system consists of Theta Scorpii A (Sargas) and Theta Scorpii B, a fainter companion at a separation of 6.470 arcseconds, detected in 2008. and should be also quite easily visible from light polluted areas. Sargas is an evolved bright giant of spectral type F0 II. the Hertzsprung–Russell diagram. Because of this great speed, the star has gained an oblate shape making its equatorial radius around 19% larger than its polar radius. Sargas – θ Scorpii (Theta Scorpii) Theta Scorpii is an evolved bright yellow giant star belonging to the spectral class F0 II. The Chinese Tail asterism is part of the Tail mansion and represents the tail of the Azure Dragon. Theta Scorpii is more massive than our Sun. The radial velocity of the Theta Scorpii binary system is +1.4 km / +0.8 mi per second. Alternatively, a line extended from Acrab, the top right star of the Fish Hook, through Antares, the brightest star in Scorpius, also points in the direction of Sargas. The ultimate fate of Theta Scorpii is to become a massive white dwarf. Due to its rotational speed, Theta Scorpii has gained an oblate shape, thus its equatorial radius is around 19% larger than its polar radius. The star has an apparent magnitude of 1.87 and it has a companion of magnitude 5.36. Scorpius is the 33rd constellation in size, occupying an area of 497 square degrees. It is the primary component of the Theta Scorpii binary star system. The star has an apparent magnitude of 1.87 and it has a companion of magnitude 5.36. 2.89). 2.82), and Fang (Pi Sco, mag. The surface gravity on Theta Scorpii has been measured to be at around 2.4 cgs. ... you would get an absolute magnitude of -2.96. Sargas is a very bright star, being 1,834 times brighter than our Sun. Celestial coordinates for the J2000 equinox as well as galactic coordinates of Sargas are provided in the following table: The simplified sky map below shows the position of Sargas in the sky: Location: Greenwich, United Kingdom [change] It is formed by Sargas with Xamidimura (Mu1 Scorpii), Larawag (Epsilon Scorpii), Zeta1 and Zeta2 Scorpii, Eta Scorpii, Iota1 Scorpii, Kappa Scorpii, Shaula (Lambda Scorpii), and Lesath (Upsilon Scorpii). It is among the brightest stars in the night sky, easily visible with the naked eye. Some believe that Sargas will become a Cepheid variable very similar to Mekbuda. Each star on the flag represents a Brazilian federative unit and Sargas symbolizes the state of Alagoas. When it comes to its radius, things get even more impressive. Theta Scorpii has the stellar classification F1 III, indicating a giant star appearing white or yellow-white in colour. Sargas, Theta Scorpii A (θ Sco A), is a white giant star located in the constellation Scorpius. With a combined apparent magnitude of 1.84, Theta Scorpii is the third brightest point of light in Scorpius, after Antares and Shaula. Theta Scorpii has around 26 solar radii, thus it should be around 50 times bigger than our Sun. It does not rise very high above the horizon for mid-northern observers. Take an interactive tour of the solar system, or browse the site to find fascinating information, facts, and data about our planets, the solar system, and beyond. With a combined apparent magnitude of 1.84, Theta Scorpii is the third brightest point of light in Scorpius, after Antares and Shaula. Sargas is also a fast spinner, having a rotational velocity of 125 km / 77.6 mi per second. This gives it a yellow-white hue, typical of an F-type star. H-R diagram showing the position of Sargas. Sargas is situated at around 300 light-years / 90 parsecs away from Earth. This premium worksheet bundle contains a printable fact file and 10 fun and engaging worksheets to challenge your students and help them learn about Sargas (θ Scorpii).
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