12 Scorpii

Star in the constellation Scorpius c1 Scorpii other stars with this Bayer designation c Scorpii 12 Scorpii J2000.0 J2000.0 Scorpius 16 12 16.039 −28 25 02.31 5.67 (5.79 + 7.9 + 8.13) B9V1999MSS...C05....0H Michigan Catalogue of Two-dimensional Spectral Types for the HD Stars, Vol. 5 Michigan Spectral Survey 5 Houk, N. Swift, C. 1999 + K7.9XR? + F3V +0.01Catalogue of homogeneous data in the UBV photoelectric photometric system 1964 Astronomy and Astrophysics Supplement Series 34 1–49 Nicolet, B. 1978A&AS...34....1N −0.19 −0.2 1.8Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system Gontcharov, G. A. 2006 Astronomy Letters 32 11 759–771 2006AstL...32..759G 10.1134/S1063773706110065 1606.08053 119231169 −23.68 0.76 −42.44 0.69 10.75 0.80 +0.56Search for low-mass PMS companions around X-ray selected late B stars Hubrig S. Le Mignant D. North P. Krautter J. Astronomy and Astrophysics 1 372 152–164 June 2001 10.1051/0004-6361:20010452 2001A&A...372..152H astro-ph/0103201 17507782 . 12 Sco A 2.939 0.088 91 11,402 150 c1 Sco 12 Sco −28°11962 3226 145483 79399 6029 184217 12+Sco 12 Scorpii is a probable triple star system in the zodiac constellation of Scorpius, located about 300 light years away from the Sun. It has the Bayer designation c1 Scorpii; 12 Scorpii is the Flamsteed designation. This system is faintly visible to the naked eye with a combined apparent visual magnitude of 5.67. It is a probable (82% chance) member of the Sco OB2 moving group. The magnitude 5.79 primary component is a B-type main-sequence star with a stellar classification of B9V. This star is 150 million years old with three times the mass of the Sun. It is radiating 91 times the Sun's luminosity from its photosphere at an effective temperature of 11,402 K. At an angular separation of 0.20 arcsecond is a K7.9 type secondary companion, a possible X-ray source. The third component is an F-type main-sequence star of class F3V and magnitude 8.13, located at a separation of 3.84 arcsecond. References 2 Sco 2019-03-23 Validation of the new Hipparcos reduction http://www.aanda.org/index.php?option=com_article&access=bibcode&Itemid=129&bibcode=2007A%2526A...474..653VFUL van Leeuwen F. Astronomy and Astrophysics 474 2 653–664 2007 0708.1752 2007A&A...474..653V 10.1051/0004-6361:20078357 free 18759600 Vizier catalog entry Rizzuto Aaron Ireland Michael Robertson J. G. Multidimensional Bayesian membership analysis of the Sco OB2 moving group Monthly Notices of the Royal Astronomical Society October 2011 416 4 3108–3117 2011MNRAS.416.3108R 1106.2857 10.1111/j.1365-2966.2011.19256.x free 54510608 Eggleton P. P. Tokovinin A. A. A catalogue of multiplicity among bright stellar systems Monthly Notices of the Royal Astronomical Society 389 2 869–879 September 2008 2008MNRAS.389..869E 0806.2878 10.1111/j.1365-2966.2008.13596.x free 14878976 Category:B9V stars Category:F-type main-sequence stars Category:Scorpius Scorpii, 12 Scorpii, c1 Category:Durchmusterung objects 145483 079399 6029