16 Cephei

Star in the constellation Cepheus J2000 21 59 14.96721 +73 10 47.6222 5.036 Cepheus main sequence F5V 0.41 −20.17 0.13 -67.994 -160.076 27.2259 0.0708 2.17 1.563 0.061 2.452 0.067 11.264 0.085 6754 93 commas 3.84 0.05 -0.24 0.10 26.4 2 16 Cep +72°1009 209369 108535 8400 10216 30800 16 Cep 2018-01-27 16+Cep 16 Cephei is a single star located about 119 light years away from the Sun in the constellation of Cepheus. It is visible to the naked eye as a faint, yellow-white hued star with an apparent visual magnitude of 5.036. The star has a relatively high proper motion, traversing the celestial sphere at the rate of 0.174 arc seconds per annum. It is moving closer to the Earth with a heliocentric radial velocity of −20 km/s. This is an ordinary F-type main-sequence star, somewhat hotter than the sun, with a stellar classification of F5 V. It is around two billion years old with a projected rotational velocity of 26.4 km/s. The star has an estimated 1.563 times the mass of the Sun and 2.452 times the Sun's radius. It is radiating 11 times the luminosity of the Sun from its photosphere at an effective temperature of 6,754 K. The star is a source of X-ray emission. There are several 11th and 12th magnitude stars within a few arc-minutes of 16 Cephei, all of them distant background objects.2278918344568877056 Only one of these is listed in the Washington Double Star Catalog and Catalog of Components of Double and Multiple Stars as a companion. References 2278918344568877056 2001AJ....122.3466M The 2001 US Naval Observatory Double Star CD-ROM. I. The Washington Double Star Catalog The Astronomical Journal 122 6 3466 Mason Brian D. Wycoff Gary L. Hartkopf William I. Douglass Geoffrey G. Worley Charles E. 2001 10.1086/323920 free 2000A&A...355L..27H The Tycho-2 catalogue of the 2.5 million brightest stars Astronomy and Astrophysics 355 L27 Høg E. Fabricius C. Makarov V. V. Urban S. Corbin T. Wycoff G. Bastian U. Schwekendiek P. Wicenec A. 2000 Eggen O. J. Space-velocity vectors for 3483 stars with proper motion and radial velocity Royal Observatory Bulletin 51 79 1962 1962RGOB...51...79E Soubiran C. Creevey O. L. Lagarde N. Brouillet N. Jofré P. Casamiquela L. Heiter U. Aguilera-Gómez C. Vitali S. Worley C. de Brito Silva D. 2024-02-01 Gaia FGK benchmark stars: Fundamental Teff and log g of the third version 2024A&A...682A.145S Astronomy and Astrophysics 682 A145 10.1051/0004-6361/202347136 free 2310.11302 0004-6361 16 Cephei database entry at VizieR. Griffin, R. F. Suchkov, A. A. 2003 The Nature of Overluminous F Stars Observed in a Radial-Velocity Survey The Astrophysical Journal Supplement Series 147 1 103–44 2003ApJS..147..103G 10.1086/367855 free Schröder C. Reiners Ansgar Schmitt Jürgen H. M. M. Ca II HK emission in rapidly rotating stars. Evidence for an onset of the solar-type dynamo Astronomy and Astrophysics 493 3 1099–1107 January 2009 10.1051/0004-6361:200810377 2009A&A...493.1099S free http://goedoc.uni-goettingen.de/goescholar/bitstream/handle/1/9690/aa10377-08.pdf?sequence=2 2017-09-22 2018-11-04 https://web.archive.org/web/20170922162905/https://goedoc.uni-goettingen.de/bitstream/handle/1/9690/aa10377-08.pdf?sequence=2 dead 2011A&A...530A.138C New constraints on the chemical evolution of the solar neighbourhood and Galactic disc(s). Improved astrophysical parameters for the Geneva-Copenhagen Survey Astronomy and Astrophysics 530 A138 Casagrande L. Schönrich R. Asplund M. Cassisi S. Ramírez I. Meléndez J. Bensby T. Feltzing S. Sofia Feltzing 2011 1103.4651 10.1051/0004-6361/201016276 free 56118016 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 free 2008MNRAS.389..869E 0806.2878 14878976 Lépine Sébastien Shara Michael M. A Catalog of Northern Stars with Annual Proper Motions Larger than 0.15" (LSPM-NORTH Catalog) The Astronomical Journal 129 3 1483–1522 March 2005 10.1086/427854 2005AJ....129.1483L astro-ph/0412070 2603568 Haakonsen Christian Bernt Rutledge Robert E. XID II: Statistical Cross-Association of ROSAT Bright Source Catalog X-ray Sources with 2MASS Point Source Catalog Near-Infrared Sources The Astrophysical Journal Supplement 184 1 138–151 September 2009 10.1088/0067-0049/184/1/138 2009ApJS..184..138H 0910.3229 119267456 Category:F5V stars Category:Double stars Category:Cepheus (constellation) Category:Durchmusterung objects Cephei, 16 108535 209369 8400