15 Delphini

Star in the constellation of Delphinus 15 Delphini J2000 Delphinus 20 49 37.7673 +12 32 42.459 5.990.01 main sequence F5 V −0.06 +0.42 4.10.4 33.0028 0.0322 +52.776 +97.020 +3.58 1.28 1.40 2.98 4.25 6,62450 −0.130.03 5.60.3 1.210.63 15 Del +12°2395 +12°4472 29037 198390 102805 7973 106536 J20496+1233A 15+Del 15 Delphini (15 Del) is a star in the northern constellation of Delphinus. It has an apparent magnitude of 5.99, allowing it to be faintly seen with the naked eye. The star is relatively close at a distance of 99 light years but is receding with a heliocentric radial velocity of 4.1 km/s. 15 Del has a stellar classification of F5 V, indicating that it is an ordinary F-type main-sequence star. It has 128% the mass of the Sun and a radius of 1.4 solar radius. It radiates at 3 times the luminosity of the Sun from its photosphere at an effective temperature of 6624 K commas, giving a yellow-white hue. 15 Del has an iron abundance 74% that of the Sun and at an age of 1.21 billion years — spins leisurely with a projected rotational velocity of 5.6 km/s. 15 Delphini has 3 companions listed below. Components B and D have different proper motions compared to the host. However, C appears to have a common proper motion, suggesting physical relation, but its parallax indicates a further distance compared to 15 Delphini. +15 Delphini's companionsCompanionmvPA (°)YearSep. (″)B14.1019201352.1C11.07862020105.5D11.892762020189.6 References 1760960887992601984 1760960922352325120 Stassun Keivan G. Oelkers Ryan J. Paegert Martin Torres Guillermo Pepper Joshua De Lee Nathan Collins Kevin Latham David W. Muirhead Philip S. Chittidi Jay Rojas-Ayala Bárbara Fleming Scott W. Rose Mark E. Tenenbaum Peter Ting Eric B. Kane Stephen R. Barclay Thomas Bean Jacob L. Brassuer C. E. Charbonneau David Ge Jian Lissauer Jack J. Mann Andrew W. McLean Brian Mullally Susan Narita Norio Plavchan Peter Ricker George R. Sasselov Dimitar Seager S. 1 The Revised TESS Input Catalog and Candidate Target List The Astronomical Journal 2019 158 4 138 10.3847/1538-3881/ab3467 free 1905.10694 2019AJ....158..138S Høg E. Fabricius C. Makarov V. V. Urban S. Corbin T. Wycoff G. Bastian U. Schwekendiek P. Wicenec A. The Tycho-2 catalogue of the 2.5 million brightest stars Astronomy and Astrophysics March 2000 355 L27–L30 0004-6361 2000A&A...355L..27H Chen Y. Q. Nissen P. E. Zhao G. Zhang H. W. Benoni T. Chemical composition of 90 F and G disk dwarfs Astronomy and Astrophysics Supplement Series February 2000 141 3 491–506 0365-0138 1286-4846 10.1051/aas:2000124 astro-ph/9912342 2000A&AS..141..491C free Mermilliod J. -C. Compilation of Eggen's UBV data, transformed to UBV (unpublished) Catalogue of Eggen's UBV Data 1986EgUBV........0M 1986 Gontcharov G. A. Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system Astronomy Letters November 2006 32 11 759–771 10.1134/S1063773706110065 1063-7737 2006AstL...32..759G 1606.08053 119231169 Anderson E. Francis Ch. XHIP: An extended hipparcos compilation Astronomy Letters May 2012 38 5 331–346 10.1134/S1063773712050015 en 1063-7737 2012AstL...38..331A 1108.4971 255204555 Gomes da Silva J. Santos N. C. Adibekyan V. Sousa S. G. Campante T. L. Figueira P. Bossini D. Delgado-Mena E. Monteiro M. J. P. F. G. de Laverny P. Recio-Blanco A. Lovis C. Stellar chromospheric activity of 1674 FGK stars from the AMBRE-HARPS sample Astronomy & Astrophysics February 2021 646 A77 0004-6361 1432-0746 10.1051/0004-6361/202039765 2021A&A...646A..77G 2012.10199 free Groot P. J. Piters A. J. M. Paradijs van Rotational velocities of F dwarfs; application of the Fourier-Bessel transformation method. Astronomy and Astrophysics Supplement Series 118 0365-0138 545–555 1996A&AS..118..545G September 1996 3 10.1051/aas:1996214 free 15 Del June 16, 2022 Mason Brian D. Wycoff Gary L. Hartkopf William I. Douglass Geoffrey G. Worley Charles E. The 2001 US Naval Observatory Double Star CD-ROM. I. The Washington Double Star Catalog The Astronomical Journal December 2001 122 6 3466–3471 10.1086/323920 0004-6256 2001AJ....122.3466M free Category:Delphinus Category:F5V stars BD+12 04472 198390 102805 7973 Category:Double stars