12 Vulpeculae

Star in the constellation Vulpecula Vulpecula constellation map.svg center 280 right Red circle.svg 10 12 Vulpeculae 632 454 Location of 12 Vulpeculae (circled) J2000 Vulpecula 19 51 04.1083 +22 36 36.173 4.78 - 4.972009yCat....102025S VizieR Online Data Catalog: General Catalogue of Variable Stars (Samus+ 2007-2013) VizieR On-line Data Catalog: B/GCVS. Originally Published in: 2009yCat....102025S 1 etal Samus N. N. Durlevich O. V. 2009 main sequence B2.5V97679 U 4.104 0.020 B 4.759 0.017 Be star −24.9010.1134/S1063773706110065 2006AstL...32..759G Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system Astronomy Letters 32 11 759–771 2006 Gontcharov G. A. 1606.08053 119231169 23.404 0.068 −15.797 0.099 5.1710 0.1070 −1.52 6.82011MNRAS.410..190T 10.1111/j.1365-2966.2010.17434.x 1007.4883 A catalogue of young runaway Hipparcos stars within 3 kpc from the Sun Monthly Notices of the Royal Astronomical Society 410 190–200 2011 Tetzlaff N. Neuhäuser R. Hohle M. M. 1 free 118629873 Vizier catalog entry 18,8592011A&A...525A..71W 10.1051/0004-6361/201015014 1009.1491 Coudé-feed stellar spectral library – atmospheric parameters Astronomy & Astrophysics 525 A71 2010 Wu Yue Singh H. P. Prugniel P. Gupta R. Koleva M. 53480665 963 1952002ApJ...573..359A 10.1086/340590 Rotational Velocities of B Stars The Astrophysical Journal 573 359–365 2002 Abt Helmut A. Levato Hugo Grosso Monica 1 free 3.36 −0.01 12 Vul +22°3833 3585 27493 187811 97679 7565 87813 V395 Vul 12 Vul 2018-11-19 12+Vulpeculae 12 Vulpeculae is a star in the northern constellation of Vulpecula, located approximately 630 light years away based on parallax. It has the variable star designation V395 Vul; 12 Vulpeculae is the Flamsteed designation. This object is visible to the naked eye as a faint, blue-white hued star with an apparent visual magnitude of about 4.9. It is moving closer to the Earth with a heliocentric radial velocity of -25 km/s. This is a variable Be star with a stellar classification of B2.5V; its brightness ranges from magnitude 4.78 down to 4.97. As is true with other Be stars, it has a high rate of rotation with a projected rotational velocity of 195 km/s. The star has 6.8 times the mass of the Sun and is radiating 963 times the Sun's luminosity from its photosphere at an effective temperature of 18,859 K. References 1827977186901985024 A new study of the spectroscopic binary 7 Vul with a Be star primary Harmanec P. Lipták J. Koubský P. Božić H. Labadie-Bartz J. Šlechta M. Yang S. Harmanec A. 1 Astronomy and Astrophysics 639 Table A.1 2020 2005.11089 2020A&A...639A..32H 10.1051/0004-6361/202037964 218862853 Category:B-type main-sequence stars Category:Be stars Category:Vulpecula Category:Durchmusterung objects Vulpeculae, 12 187811 097679 7565