11 Trianguli

Star in the constellation Triangulum 11 Trianguli Triangulum constellation map.svg center 280 right Red circle.svg 10 11 Trianguli 368 442 Location of 11 Trianguli (circled) J2000.0 (ICRS) Triangulum 02 27 27.771 +31 48 04.61 5.55 horizontal branch K1 III +1.1 -41.614 0.163 11.6240 0.1293 −24.331 −27.845 0.836 2.446 0.122 12.055 0.603 54.6 3.8 4,572 2.2 −0.19 6.3 2.8 1.4 11 Trianguli +31° 231 +31°427 2943 15176 11432 712 55570 11+Tri 11 Trianguli is a solitary star located in the northern constellation Triangulum, with an apparent magnitude of 5.55. The star is situated 281 light years away but is approaching with a heliocentric radial velocity of -41.614 km/s. It is probably on the horizontal branch fusing helium in its core, and is calculated to be about 6.3 Gyr old. It has a stellar classification of K1 III. It has 2.446 times the mass of the Sun and 12.055 times the radius of the Sun. It shines at 54.6 times the luminosity of the Sun from its photosphere at an effective temperature of 4572 K commas. It was once designated d 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 References 132751808418537472 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 10.1051/0004-6361/201834371 2019A&A...623A..72K 1811.08902 free Soubiran Caroline Le Campion Jean-François Brouillet Nathalie Chemin Laurent The PASTEL catalogue: 2016 version Astronomy & Astrophysics 2016 591 A118 10.1051/0004-6361/201628497 2016A&A...591A.118S 1605.07384 free 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 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 Hinkel Natalie R. Unterborn Cayman Kane Stephen R. Somers Garrett Galvez Richard A Recommendation Algorithm to Predict Giant Exoplanet Host Stars Using Stellar Elemental Abundances The Astrophysical Journal 2019 880 1 49 10.3847/1538-4357/ab27c0 2019ApJ...880...49H 1805.12144 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 Reffert Sabine Bergmann Christoph Quirrenbach Andreas Trifonov Trifon Künstler Andreas Precise Radial Velocities of Giant Stars VII. Occurrence Rate of Giant Extrasolar Planets as a Function of Mass and Metallicity Astronomy and Astrophysics 2015 574 10.1051/0004-6361/201322360 2015A&A...574A.116R 1412.4634 free Soubiran C. Bienayme O. Mishenina T.V. Vertical distribution of Galactic disk stars. IV. AMR and AVR from clump giants. Astronomy & Astrophysics 2008 480 1 91–101 10.1051/0004-6361:20078788 2008A&A...480...91S 0712.1370 free Massarotti Alessandro Latham D.W. Stefanik R.P. Fogel Jeffrey Rotational and radial velocities for a sample of 761 Hipparcos giants and the role of binarity. The Astronomical Journal 2008 135 1 209 10.1051/0004-6361:20078788 2008AJ....135..209M free 0712.1370 Precise radial velocities of giant stars. X. Bayesian stellar parameters and evolutionary stages for 372 giant stars from the Lick planet search 1 Stock Stephan Reffert Sabine Quirrenbach Andreas Astronomy & Astrophysics 616 A33 15 August 2018 10.1051/0004-6361/201833111 1805.04094 2018A&A...616A..33S 119361866 . The Tycho-2 catalogue of the 2.5 million brightest stars Astronomy and Astrophysics Høg E. Fabricius C. Makarov V. V. Urban S. Corbin T. Wycoff G. Bastian U. Schwekendiek P. Wicenec A. 5 355 L27–L30 March 2000 2000A&A...355L..27H 10.1888/0333750888/2862 Category:K1III stars Category:Triangulum Trianguli, 11 015176 011432 0712 Category:Durchmusterung objects