11 Canis Minoris

Star in the constellation Canis Minor Canis Minor constellation map.svg center 280 right Red circle.svg 10 11 Canis Minoris 358 542 Location of 11 Canis Minoris (circled in red) J2000.0 (ICRS) Canis Minor 07 46 16.20081 +10 46 05.7055 5.25 A1Vnn 0.018 0.008 +28.0 4.2 −29.902 −25.275 10.4262 0.2007 0.42 2.23 2.5 65.26 9972 339 commas 3.60 149 11 CMi +11°1670 1201 62832 37921 3008 97224 10463 3724 11+CMi 11 Canis Minoris is a single star in the equatorial constellation of Canis Minor, located around 313 light years away from the Sun. It is visible to the naked eye as a faint, white-hued star with an apparent visual magnitude of 5.25. This object is moving away from the Earth with a heliocentric radial velocity of +28 km/s, having come to within 48.06 pc ly 0 off out some 2.35 million years ago. This is an A-type main-sequence star with a stellar classification of A1Vnn, where the 'n' notation indicates (very) "nebulous" lines due to rapid rotation. However, Gray and Garrison (1987) found a class of A0.5 IVnn, which would instead match an evolving subgiant star. It is a suspected variable star of unknown type. This object is 149 million years old with 2.23 times the mass of the Sun and about 2.5 times the Sun's radius. It is radiating 65 times the Sun's luminosity from its photosphere at an effective temperature of 9,972 K. References 3149891532709008256 11 CMi 2019-04-02 XHIP: An extended hipparcos compilation Anderson E. Francis Ch. Astronomy Letters 38 5 331 2012 2012AstL...38..331A 10.1134/S1063773712050015 1108.4971 119257644 . Gontcharov G. A. Pulkovo Compilation of Radial Velocities for 35495 Hipparcos stars in a common system Astronomy Letters 32 11 759–771 November 2006 10.1134/S1063773706110065 2006AstL...32..759G 1606.08053 119231169 . 1 Cowley A. Cowley C. Jaschek M. Jaschek C. A study of the bright A stars. I. A catalogue of spectral classifications Astronomical Journal . 74 375–406 April 1969 10.1086/110819 1969AJ.....74..375C 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 . 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 1 Samus N. N. Kazarovets E. V. Durlevich O. V. Kireeva N. N. Pastukhova E. N. General Catalogue of Variable Stars 5.1 Astronomy Reports 2017 61 1 80–88 10.1134/S1063772917010085 2017ARep...61...80S 125853869 . The Early A-Type Stars: Refined MK Classification, Confrontation with Stroemgren Photometry, and the Effects of Rotation Gray R. O. Garrison R. F. Astrophysical Journal Supplement . 65 581 December 1987 10.1086/191237 1987ApJS...65..581G free Pasinetti Fracassini L. E. Pastori L. Covino S. Pozzi A. Catalogue of Apparent Diameters and Absolute Radii of Stars (CADARS) 1 Third Astronomy and Astrophysics 367 2 521–524 February 2001 10.1051/0004-6361:20000451 2001A&A...367..521P astro-ph/0012289 425754 . Category:A-type main-sequence stars Category:Suspected variables Category:Canis Minor BD+11 1670 Canis Minoris, 11 62832 037921 3008