16 Lyncis

Star in the constellation Lynx Psi Aurigaeψ Aurigae Lynx constellation map.svg center 240 right Red circle.svg 10 16 Lyncis 858 510 Location of 16 Lyncis (circled) J2000 Lynx 06 57 37.10709 +45 05 38.7404 4.90 A0Vn 0.03 suspected −11.90 1 −21.52 0.27 −3.12 0.17 13.54 0.23 0.56 2.38 56 10395 353 commas 4.02 229 181 Psi10 Aurigae 16 Lyn +45°1367 50973 33485 2585 41463 HD+50973 16 Lyncis is a star in the constellation Lynx. It is positioned next to the western constellation border with Auriga, and is also known as Psi10 Aurigae, which is Latinized from ψ10 Aurigae. The star has a white hue and is visible to the naked eye with an apparent visual magnitude of 4.90. The distance to this object is approximately 241 light-years based on parallax, but it is drifting closer to the Sun with a radial velocity of −12 km/s. It has an absolute magnitude of 0.56. This object is a solitary A-type main-sequence star with a stellar classification of A0Vn, a star that is currently fusing its core hydrogen. The 'n' suffix indicates "nebulous" absorption lines due to rapid rotation. It is around 181 million years old with a projected rotational velocity of 229 km/s. This spin rate is giving the star an oblate shape with an equatorial bulge that is an estimated 10% larger than the polar radius. 16 Lyncis has 2.38 times the mass of the Sun and is radiating 56 times the Sun's luminosity from its photosphere at an effective temperature of 10395 commas K. 16 Lyncis is suspected of being slightly variable, but this has not been confirmed. It was noted when 16 Lyncis was used as a comparison star for observing another variable, the peculiar HD 51418 (NY Aurigae). See also Psi Aurigae References psi10 Aur 2020-07-01 A catalogue of multiplicity among bright stellar systems Eggleton P. P. Tokovinin A. A. Monthly Notices of the Royal Astronomical Society 389 2 869 2008 10.1111/j.1365-2966.2008.13596.x free 0806.2878 2008MNRAS.389..869E 14878976 Interferometric observations of rapidly rotating stars Belle G. T. The Astronomy and Astrophysics Review 20 51 2012 1 2012A&ARv..20...51V 1204.2572 10.1007/s00159-012-0051-2 119273474 Bright Star Catalogue 5th VizieR On-line Data Catalog: V/50. Originally Published in: 1964BS....C......0H Hoffleit D. Warren W. H. 1995 5050 1995yCat.5050....0H NSV 3293 VSX 18 January 2010 AAVSO Website American Association of Variable Star Observers http://www.aavso.org/vsx/index.php?view=detail.top&oid=41917 11 October 2014 Gulliver A. F. Winzer J. E. Spectrum and light variations of the peculiar a star HD 51418 The Astrophysical Journal 183 701 1973 1973ApJ...183..701G 10.1086/152260 33485 David Trevor J. Hillenbrand Lynne A. The Ages of Early-Type Stars: Strömgren Photometric Methods Calibrated, Validated, Tested, and Applied to Hosts and Prospective Hosts of Directly Imaged Exoplanets The Astrophysical Journal 804 2 146 2015 2015ApJ...804..146D 10.1088/0004-637X/804/2/146 1501.03154 33401607 Van Leeuwen F. Validation of the new Hipparcos reduction Astronomy and Astrophysics 474 2 653–664 2007 0708.1752 2007A&A...474..653V 10.1051/0004-6361:20078357 18759600 Abt Helmut A. Morrell Nidia I. The Relation between Rotational Velocities and Spectral Peculiarities among A-Type Stars The Astrophysical Journal Supplement Series 99 135 1995 1995ApJS...99..135A 10.1086/192182 free Gontcharov G. A. Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system Astronomy Letters 32 11 759–771 November 2006 2006AstL...32..759G 1606.08053 10.1134/S1063773706110065 119231169 Category:A-type main-sequence stars Category:Suspected variables Category:Lynx (constellation) Aurigae, Psi10 Category:Durchmusterung objects Lyncis, 16 050973 033485 2585