The three stars probably formed at the same time, as they lie in the same orbital plane. Some sources give the spectral type F0 II, indicating a bright giant. The two stars revolve each other along a circular orbit with the components separated by 12.9 times the Sun's radius. The star’s Chinese name is also a reference to the Tail (尾宿),an asterism the star forms with Epsilon, Zeta1, Zeta2, Eta, Theta, Iota1, Iota2, Kappa, Mu1 and Upsilon Scorpii. 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. 2.70), Paikauhale (Tau Sco, mag. [8], In 2016, the IAU organized a Working Group on Star Names (WGSN)[9] to catalog and standardize proper names for stars. Available for sale from Wallplay, Natalie White, Upsilon Scorpii (2018), 20x24 Polaroid Image Transfer on Water Color Paper, 30 × 22 in Cybertron, the Transformers home world, orbits the star in the IDW comics. [12], Astronomical Society of Southern Africa (2013), Monthly Notices of the Royal Astronomical Society, Commonwealth Scientific and Industrial Research Organisation, "WG Triennial Report (2015-2018) - Star Names", https://en.wikipedia.org/w/index.php?title=Mu1_Scorpii&oldid=949957563, Articles with Chinese-language sources (zh), Articles containing Chinese-language text, Creative Commons Attribution-ShareAlike License, This page was last edited on 9 April 2020, at 13:48. Lambda Scorpii consists of three components: two B-type stars, appearing bluish in colour, and a faint pre-main sequence companion. [3] At these temperatures, the two stars glow with a blue-white hue. 2.82), and Fang (Pi Sco, mag. Lambda Scorpii B orbits Lambda Scorpii A with a period of 1,053 days at an average separation of about 5.7 astronomical units and Lanbda Scorpii C orbits with a period of just under 6 days at a separation of 0.19 to 0.11 astronomical units. Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube. The star has a B-V Colour Index of -0.17 which means the star's temperature is about 14,786 Kelvin. Bright third magnitude (2.69), the star is a magnitude fainter than its apparent companion, the stinger trailing off at … Lesath visual magnitude is 2.69. USS Enterprise It changes brightness with two periods, 0.2137 and 0.1069 days. 0.6 – 1.6), Shaula (Lambda Sco A, mag. 2.89). [7], The pair of stars Mu¹ and Mu² Scorpii are known as the xami di mura 'eyes of the lion' by the Khoikhoi people of South Africa. The latest Tweets from ️‍Upsilon Scorpii ️‍ (@ScorpiiUpsilon). [5], In Chinese, 尾宿 (Wěi Xiù), meaning Tail, refers to an asterism consisting of Mu¹ Scorpii, Epsilon Scorpii, Zeta¹ Scorpii and Zeta² Scorpii, Eta Scorpii, Theta Scorpii, Iota¹ Scorpii and Iota² Scorpii, Kappa Scorpii, Lambda Scorpii and Upsilon Scorpii. B−V color index –0.202: Astrometry; Radial velocity (R v) ... Mu¹ Scorpii (μ¹ Scorpii, abbreviated Mu¹ Sco, ... Iota¹ Scorpii and Iota² Scorpii, Kappa Scorpii, Lambda Scorpii and Upsilon Scorpii. [12], Astronomical Society of Southern Africa (2013), Monthly Notices of the Royal Astronomical Society, Commonwealth Scientific and Industrial Research Organisation, "WG Triennial Report (2015-2018) - Star Names", https://en.wikipedia.org/w/index.php?title=Mu1_Scorpii&oldid=949957563, Articles with Chinese-language sources (zh), Articles containing Chinese-language text, Creative Commons Attribution-ShareAlike License, This page was last edited on 9 April 2020, at 13:48. The combined apparent visual magnitude of the pair is +3.04,[2] making it one of the brighter members of Scorpius. Mu¹ Scorpii (μ¹ Scorpii, abbreviated Mu¹ Sco, μ¹ Sco) is a binary star system in the southern zodiac constellation of Scorpius. Lambda Scorpii B is a 15th magnitude class B2 star separated by 4 arcseconds from the primary, and Lambda Scorpii C,  believed to be a pre-main sequence star, has a visual magnitude of 12.0 and lies 95 seconds of arc away. Shaula lies in a region of the sky populated by a number of interesting deep sky objects. [8], In 2016, the IAU organized a Working Group on Star Names (WGSN)[9] to catalog and standardize proper names for stars. Upsilon Scorpii (υ Sco, υ Scorpii) is a star located in the "stinger" of the southern zodiacconstellation of Scorpius, the scorpion. Epsilon Scorpii (ε Scorpii, abbreviated Eps Sco, ε Sco), formally named Larawag / ˈ l ær ə w æ ɡ /, is a star in the southern zodiac constellation of Scorpius.It has an apparent visual magnitude of +2.3, making it the fifth-brightest member of the constellation. 1.84), Dschubba (Delta Sco, mag 2.307), Larawag (Epsilon Sco, mag. Based upon parallax measurements, the distance of this system from the Sun is roughly 500 light-years (150 parsecs). Theta Scorpii has the stellar classification F1 III, indicating a giant star appearing white or yellow-white in colour. It was officially approved for Lambda Scorpii Aa by the International Astronomical Union’s (IAU) Working Group on Star Names (WGSN) on July 20, 2016. Only Adhara, the second brightest star in the constellation Canis Major, and Castor, the second brightest star in Gemini, are brighter. Shaula is the third brightest second-magnitude star. Shaula is one of the stars on the flag of Brazil. Lesath visual magnitude is 2.69. The star’s traditional name, Lesath, comes from the… Thanks to its high brightness, Lesath is clearly visible when observed from locations with dark skyes, and should be also quite easily visible from light polluted areas. In fiction, Lambda Scorpii was notably used in The Transformers comic book series. Like all zodiac constellations, Scorpius was first catalogued by the Greco-Roman astronomer Ptolemy in the 2nd century AD. Thanks to its high brightness, Lesath is clearly visible when observed from locations with dark skyes, and should be also quite easily visible from light polluted areas. B−V color index –0.202: Astrometry; Radial velocity (R v) ... Mu¹ Scorpii (μ¹ Scorpii, abbreviated Mu¹ Sco, ... Iota¹ Scorpii and Iota² Scorpii, Kappa Scorpii, Lambda Scorpii and Upsilon Scorpii. The primary component is a B-type main sequence star with a stellar classification of B1.5 V. It has 8.5 times the mass of the Sun and 4.1 times the Sun's radius. [6], μ¹ Scorpii (Latinised to Mu¹ Scorpii) is the system's Bayer designation. Scorpius constellation, image: Roberto Mura, The constellation lies in a rich area of the Milky Way in the direction of the Galactic Centre and contains a number of notable clusters and nebulae. The WGSN decided to attribute proper names to individual stars rather than entire multiple systems. In addition to those already mentioned, Scorpius is home to the bipolar planetary Butterfly Nebula (NGC 6302), the star cluster Messier 4, one of the nearest globular clusters to the Sun, the globular cluster Messier 80, and the open clusters Messier 6 (the Butterfly Cluster), NGC 6281 and NGC 6231 (the Northern Jewel Box Cluster.). [3], The primary (Mu¹ Scorpii Aa) is formally named Xamidimura /ˌkæmidiˈmʊərə/, from the Khoekhoe xami di mûra IPA: [xami ti mũːɾa] 'the (two) eyes of the lion'.[5]. 2.62), Lesath (Upsilon Sco, mag. The star has 14.5 solar masses and a radius 8.8 times that of the Sun. Lesath, also designated as υ Scorpii (upsilon Scorpii), is a sub-giant star in the constellation of Scorpius. The 10 brightest stars in Scorpius are Antares (Alpha Sco A, mag. It is 36,300 times more luminous than the Sun. [1] This system is a member of the Scorpius–Centaurus Association, the nearest OB association of co-moving stars to the Sun. In Coptic, they were known as Minamref, meaning “the Sting,” while the Boorong people in northwestern Victoria in Australia called the pair Karik Karik, meaning “the Falcons.”, As the name suggests, Shaula marks the scorpion’s stinger. [6], μ¹ Scorpii (Latinised to Mu¹ Scorpii) is the system's Bayer designation. Hold your mouse cursor over the image to see the star designations. [3] Due to occultation of each component by the other, the apparent magnitude of the system decreased by 0.3 and 0.4 magnitudes over the course of the binary's orbit, which takes 34 hours 42.6 minutes to complete. Shaula and its fainter neighbour Lesath (Upsilon Scorpii) are listed in the Bablyonian MUL.APIN as dSharur4 u dShargaz (Sharur and Shargaz). Shaula, Lambda Scorpii (λ Sco), is a triple star system located at a distance of about 570 light years from Earth in the direction of the constellation Scorpius. Shaula, Lambda Scorpii (λ Sco), is a triple star system located at a distance of about 570 light years from Earth in the direction of the constellation Scorpius.With an apparent magnitude of 1.62, it is the second brightest star in Scorpius, fainter only than the red supergiant Antares.. Shaula is the 24th brightest star in … They play a special role in the field of celestial navigation. It is only slightly fainter than Regulus in the constellation Leo, Adhara in Canis Major and Castor in Gemini, and it just outshines Gacrux in Crux, Bellatrix in Orion and Elnath in Taurus. The secondary is a smaller B-type main sequence star with a classification of about B6.5 V, having 5.3 times the Sun's mass and 4.4 times the radius of the Sun. Epsilon Scorpii (ε Scorpii, abbreviated Eps Sco, ε Sco), formally named Larawag / ˈ l ær ə w æ ɡ /, is a star in the southern zodiac constellation of Scorpius.It has an apparent visual magnitude of +2.3, making it the fifth-brightest member of the constellation. Discovered to be a spectroscopic binary by Solon Irving Bailey in 1896, it was only the third such eclipsing pair to be discovered. Lambda and Upsilon Scorpii (The Cat's Eyes) make up the stinger in the tail of Scorpius. [10] It approved the name Xamidimura for the component Mu¹ Scorpii Aa on 5 September 2017 (along with Pipirima for the partner of Mu¹ Scorpii) and it is now so included in the List of IAU-approved Star Names. It's spectral type is B2, which implies it would be blue/white in colour. This is a semidetached binary system where the secondary is close to filling its Roche lobe, or it may even be overflowing. The secondary is a smaller B-type main sequence star with a classification of about B6.5 V, having 5.3 times the Sun's mass and 4.4 times the radius of the Sun. Lesath, Scorpius's Upsilon star, is intimately related in the observer's eye to Shaula (Lambda Scorpii), the two making the Scorpion's famed, and very real-looking, stinger. Even though the two stars appear close together, they are not a physical pair. [3] Due to occultation of each component by the other, the apparent magnitude of the system decreased by 0.3 and 0.4 magnitudes over the course of the binary's orbit, which takes 34 hours 42.6 minutes to complete. [3], The primary (Mu¹ Scorpii Aa) is formally named Xamidimura /ˌkæmidiˈmʊərə/, from the Khoekhoe xami di mûra IPA: [xami ti mũːɾa] 'the (two) eyes of the lion'.[5].

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