19 Cephei

Star in the constellation Cepheus Cepheus constellation map.svg center 260 right Red circle.svg 10 19 Cep 674 942 Location of 19 Cephei (circled) J2000 22 05 08.78995 +62 16 47.3301 5.08 Cepheus O9Ib +0.06 −0.91 −12.8 0.9 −1.16 −2.96 1.58 0.19 3,910 1,200 2015AJ....149...26A The Multiplicity of Massive Stars: A High Angular Resolution Survey with the Guidance Sensor The Astronomical Journal 149 26 Aldoretta E. J. Caballero-Nieves S. M. Gies D. R. Nelan E. P. Wallace D. J. Hartkopf W. I. Henry T. J. Jao W.-C. Maíz Apellániz J. Mason B. D. Moffat A. F. J. Norris R. P. Richardson N. D. Williams S. J. 2015 1 10.1088/0004-6256/149/1/26 1410.0021 58911264 −5.452006A&A...454..625P astro-ph/0604372 Bright OB stars in the Galaxy. III. Constraints on the radial stratification of the clumping factor in hot star winds from a combined Hα, IR and radio analysis Astronomy and Astrophysics 454 2 625 Puls J. Markova N. Scuderi S. Stanghellini C. Taranova O. G. Burnley A. W. Howarth I. D. 2006 10.1051/0004-6361:20065073 free 18271791 47 Krticka J. Kubat J. 2010 Comoving frame models of hot star winds. I. Test of the Sobolev approximation in the case of pure line transitions Astronomy and Astrophysics 519 A50 1005.0258 2010A&A...519A..50K 10.1051/0004-6361/201014111 free 118589169 17.0 224,000 32983 1428 commas 0.06 0.08 3.40 0.08 48 19 Cep +61°2246 209975 109017 8428 19849 19+Cephei 19 Cephei is a supergiant star in the northern circumpolar constellation of Cepheus. It has a spectral class of O9 and is a member of Cep OB2, an OB association of massive stars located about 615 pc ly from the Sun. The spectrum of 19 Cephei shows line profile variability on an hourly and daily timescale. This is thought to be due to the changes in the stellar wind. Double star catalogues list several companions for 19 Cephei. The Washington Double Star Catalog describes four companions: 11th magnitude stars 20" and 56" away, and two 15th magnitude stars 4-5" away.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 The Catalog of Components of Double and Multiple Stars gives only the two 11th magnitude stars.1994CoORB.115....1D Catalogue des composantes d'etoiles doubles et multiples (CCDM) premiere edition - Catalogue of the components of double and multiple stars (CCDM) first edition Com. De l'Observ. Royal de Belgique 115 1 Dommanget J. Nys O. 1994 A scattered cluster of faint stars has been detected associated with 19 Cephei. The brightest likely members apart from 19 Cep itself are 10th magnitude stars. 2005A&A...440..403K 109 new Galactic open clusters Astronomy and Astrophysics 440 403–408 Kharchenko N. V. Piskunov A. E. Röser S. Schilbach E. Scholz R.-D. 2005 1 10.1051/0004-6361:20052740 free astro-ph/0505019 56292154 References Validation of the new Hipparcos reduction van Leeuwen F. Astronomy and Astrophysics 474 2 653–664 2007 0708.1752 2007A&A...474..653V 10.1051/0004-6361:20078357 18759600 Vizier catalog entry https://web.archive.org/web/20200901074941/http://webviz.u-strasbg.fr/viz-bin/VizieR-5?-out.add=.&-source=I%2F311%2Fhip2&recno=114184 2020-09-01 10.1134/S1063773706110065 2006AstL...32..759G Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system Astronomy Letters 32 11 759–771 November 2006 Gontcharov G. A. 1606.08053 119231169 10.1051/0004-6361/201116769 free The atmospheric parameters and spectral interpolator for the MILES stars Astronomy & Astrophysics 531 A165 2011 Prugniel P. Vauglin I. Koleva M. 1104.4952 2011A&A...531A.165P 54940439 2015A&A...574A.142M 1409.5057 Radial dependence of line profile variability in seven O9-B0.5 stars Astronomy & Astrophysics 574 A142 Martins F. Marcolino W. Hillier D. J. Donati J.-F. Bouret J.-C. 2015 10.1051/0004-6361/201423882 free 118365203 Mermilliod J.-C. Compilation of Eggen's UBV data, transformed to UBV (unpublished) Catalogue of Eggen's UBV Data. SIMBAD 1986 1986EgUBV........0M Category:Cepheus (constellation) Cephei, 19 109017 Category:O-type supergiants 209975 08428 BD+61 2246 Category:Population I stars