13 Scorpii

Star in the constellation Scorpius c2 Scorpii other stars with this Bayer designation c Scorpii Scorpius constellation map.svg center 280 right Red circle.svg 10 13 Scorpii 718 450 Location of 13 Scorpii (circled in red) Scorpius J2000 16 12 18.20490Validation of the new Hipparcos reduction van Leeuwen, F. etal Astronomy and Astrophysics 474 2 653–664 2007 0708.1752 2007A&A...474..653V 10.1051/0004-6361:20078357 free 18759600 -27 55 34.9457 +4.568The Tycho-2 catalogue of the 2.5 million brightest stars Høg, E. etal 2000 Astronomy and Astrophysics 355 L27–L30 2000A&A...355L..27H B2VSB9: The ninth catalogue of spectroscopic binary orbits 1 Pourbaix, D. Tokovinin, A. A. Batten, A. H. Fekel, F. C. Hartkopf, W. I. Levato, H. Morrell, N. I. Torres, G. Udry, S. Astronomy and Astrophysics 424 2 727–732 2004 10.1051/0004-6361:20041213 free astro-ph/0406573 2004A&A...424..727P 119387088 −0.16UBVRIJKL Photometry of the Bright Stars Johnson, H. L. Communications of the Lunar and Planetary Laboratory 4 99 1966 1966CoLPL...4...99J −0.74 0 ± 5The Revision of the General Catalogue of Radial Velocities Evans D. S. 1967 Determination of Radial Velocities and their Applications, Proceedings from IAU Symposium no. 30 held at the University of Toronto 20-24 June, 1966 Alan Henry Batten John Frederick Heard International Astronomical Union 30 Academic Press London 57 1967IAUS...30...57E −10.38 −23.94 6.81 0.16 −1.25 Anderson E. Francis Ch. XHIP: An extended hipparcos compilation Astronomy Letters May 2012 38 5 331–346 1063-7737 1562-6873 10.1134/S1063773712050015 2012AstL...38..331A 1108.4971 119257644 5.7805 d JD 2443298.40 0.19 115 31.5 13 Sco A 165B Star Rotational Velocities in h and χ Persei: A Probe of Initial Conditions during the Star Formation Epoch? Strom, S. E. Wolff, S. C. Dror, D. H. A. The Astronomical Journal 129 2 809–828 2005 2005AJ....129..809S 10.1086/426748 astro-ph/0410337 15059129 7.80SPOTS: The Search for Planets Orbiting Two Stars. II. First constraints on the frequency of sub-stellar companions on wide circumbinary orbits Bonavita, M. etal Astronomy & Astrophysics 593 A38 2016 2016A&A...593A..38B 10.1051/0004-6361/201628231 free 1605.03962 55950739 11 24000Herbig Ae/Be Stars in nearby OB Associations Hernández, J. Calvet, N. Nuria Calvet Hartmann, L. Briceño, C. Sicilia-Aguilar, A. Berlind, P. The Astronomical Journal 129 2 856–871 2005 2005AJ....129..856H 10.1086/426918 astro-ph/0410494 17672346 3020 13 Sco B 1.12 c2 Sco 13 Sco −27°10841 145482 79404 6028 184221* c02 Sco 10 April 2017 13+Sco 13 Scorpii, also known by its Bayer designation c2 Scorpii, is a binary star in the constellation Scorpius. Its apparent magnitude is 4.57, meaning it can be faintly seen with the naked eye. Based on parallax estimates made by the Hipparcos spacecraft, the system is located about 480 light-years (147 parsecs) away. It is located within the Upper Scorpius subgroup of the Scorpius–Centaurus association. 13 Scorpii is a spectroscopic binary, meaning the two stars are too close to be individually resolved, but periodic Doppler shifts in the star's spectrum indicate there must be orbital motion. In this case, light from only one of its stars can be detected and it is a double-lined spectroscopic binary. The two have an orbital period of 5.7805 days and an eccentricity of 0.19. The primary star, at 11 million years old, is a B-type main-sequence star with a spectral type of B2V. While the primary's mass is estimated to be about 7.8, its companion is thought to have a mass of 1.12. References 30em Category:Scorpius Scorpii, 13 079404 Scorpii, c2 6028 Category:Spectroscopic binaries 145482 CD-27 10841 Category:Upper Scorpius Category:B2V stars