12 Trianguli

Star in the constellation Triangulum 12 Trianguli Triangulum constellation map.svg center 280 right Red circle.svg 10 12 Trianguli 359 527 Location of 12 Trianguli (circled) J2000.0 (ICRS) Triangulum 02 28 09.980 +29 40 09.59 5.37 F0 III +0.29 -24.8 2.8 20.4105 0.0942 −15.632 −86.097 1.6 14 7,199 3.79 0.27 85 2.19 12 Trianguli +29°296 +29°417 2956 15257 11486 717 75382 12+Tri 12 Trianguli is a solitary star located in the northern constellation Triangulum, with an apparent magnitude of 5.37, making it faintly visible to the naked eye under ideal conditions. The star is situated 160 light years away but is approaching with a heliocentric radial velocity of -24.8 km/s. It is calculated to be about 2.19 Gyr old with a stellar classification of F0 III, making it an F-type giant. It has 1.6 times the mass of the Sun and shines at 14 times the luminosity of the Sun from its photosphere at an effective temperature of 7199 K commas. It was once designated c Trianguli by John Flamsteed and was included in his Atlas Coelestis, but the designation is now dropped.Wagman M. Flamsteed's Missing Stars . Journal for the History of Astronomy 18 3 209–223 August 1987 1987JHA....18..209W 10.1177/002182868701800305 118445625 Together with ι Trianguli and 10 Trianguli, it forms part of the obsolete Triangulum Minus. References 131471770725205632 Brandt Timothy D. The Hipparcos-Gaia Catalog of Accelerations: Gaia EDR3 Edition The Astrophysical Journal Supplement Series 2021 254 2 42 10.3847/1538-4365/abf93c 2021ApJS..254...42B 2105.11662 free Reiners Ansgar Zechmeister Mathias Radial velocity photon limits for the dwarf stars of spectral classes F--M The Astrophysical Journal Supplement Series 2020 247 1 11 10.3847/1538-4365/ab609f 2020ApJS..247...11R 1912.04120 free Kervella Pierre Arenou Frédéric Mignard François Thévenin Frédéric Stellar and substellar companions of nearby stars from Gaia DR2 - Binarity from proper motion anomaly Astronomy and Astrophysics March 2019 623 623 10.1051/0004-6361/201834371 2019A&A...623A..72K 1811.08902 free 1 Cruzalèbes P. Petrov R.G. Robbe-Dubois S. Varga J. Burtscher J. Allouche F. Berio P. Hofmann K.-H. Hron J. Jaffe W. Lagarde S. Lopez B. Matter A. Meilland A. Meisenheimer K. Millour F. Schertl D. A catalogue of stellar diameters and fluxes for mid-infrared interferometry Monthly Notices of the Royal Astronomical Society 2019 490 3 10.1093/mnras/stz2803 3158–3176 2019MNRAS.490.3158C 1910.00542 free Netopil Martin Metallicity calibrations for dwarf stars and giants in the Geneva photometric system Monthly Notices of the Royal Astronomical Society 2017 469 3 3042–3055 10.1093/mnras/stx1077 2017MNRAS.469.3042N 1705.00883 free Luck R. Earle Abundances in the Local Region I: G and K Giants The Astronomical Journal 2015 150 3 88 10.1088/0004-6256/150/3/88 2015AJ....150...88L 1507.01466 free van Belle G.T. Interferometric observations of rapidly rotating stars The Astronomy and Astrophysics Review 2012 20 1 51 10.1007/s00159-012-0051-2 2012A&ARv..20...51V 1204.2572 free de Bruijne J.H.J. Eilers A.-C. Radial velocities for the HIPPARCOS-Gaia Hundred-Thousand-Proper-Motion project Astronomy & Astrophysics 2012 546 14 10.1051/0004-6361/201219219 2012A&A...546A..61D 1208.3048 free 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 10.1111/j.1365-2966.2008.13596.x 2008MNRAS.389..869E 0806.2878 14878976 free Category:Triangulum Trianguli, 12 15257 11486 0717 Category:Durchmusterung objects Category:F0III stars