15 Trianguli

Star in the constellation Triangulum 15 Trianguli Triangulum constellation map.svg center 280 right Red circle.svg 10 1t Trianguli 305 325 Location of 15 Trianguli (circled) J2000.0 (ICRS) Triangulum 02 35 46.821 +34 41 15.18 5.396 AGB M3 III suspected -8.646 2.407 4.8075 0.2721 26.689 0.361 -48.894 0.233 1.689 0.084 118.453 5.923 1,668 3,572 0.489 0.08 15 Trianguli +34°259 +34°469 3103 16058 12086 750 55687 866 15+Tri 15 Trianguli is a suspected variable star located in the northern constellation Triangulum, with an apparent magnitude of 5.4 making it faintly visible to the naked eye under ideal conditions, although it is suspected of being an irregular variable with a range of 0.14 magnitudes. The star is situated about 480 light years away but is approaching with a heliocentric radial velocity of -8.646 km/s. 15 Trianguli has a stellar classification of M3 III. It has 1.7 times the mass of the Sun and 118 times the radius of the Sun. It has an effective temperature of 3572 K commas and shines at 1,668 times the luminosity of the Sun from its photosphere, giving it an orange glow. It is an asymptotic giant branch star, which means it is fusing hydrogen and helium in separate shells around an inert carbon core. References 135039063187620864 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 Kervella Pierre Arenou Frédéric Mignard François Thévenin Frédéric Stellar and substellar companions of nearby stars from Gaia DR2 - Binarity from proper motion anomaly Astronomy & Astrophysics March 2019 623 623 10.1051/0004-6361/201834371 2019A&A...623A..72K 1811.08902 free Ghosh Supriyo Mondal Soumen Das Ramkrishna Khata Dhrimadri Spectral calibration of K-M giants from medium-resolution near-infrared HK-band spectra Monthly Notices of the Royal Astronomical Society 2019 484 4 4619–4634 10.1093/mnras/stz299 2019MNRAS.484.4619G 1901.09170 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 McDonald I. Zijlstra A.A. Boyer M.L. Fundamental parameters and infrared excesses of Tycho-Gaia stars Monthly Notices of the Royal Astronomical Society 21 November 2012 427 1 343–357 10.1111/j.1365-2966.2012.21873.x 2012MNRAS.427..343M 1208.2037 free 2004yCat.2250....0S VizieR Online Data Catalog: Combined General Catalogue of Variable Stars (Samus+ 2004) VizieR On-line Data Catalog: II/250. Originally Published in: 2004yCat.2250....0S 2250 Samus N. N. Durlevich O. V. etal 2004 1992AJ....104..275E Asymptotic Giant Branch Stars Near the Sun The Astronomical Journal 104 275 Eggen Olin J. 1992 10.1086/116239 Category:M3III stars Category:Triangulum Trianguli, 15 016058 012086 0750 Category:Durchmusterung objects Category:Asymptotic-giant-branch stars