13 Andromedae

Star in the constellation Andromeda Andromeda constellation map.svg center 260 right Red circle.svg 10 13 Andromedae 964 304 Location of 13 Andromedae (circled) J2000 Andromeda 23 27 07.40 +42 54 43.2 5.75 main sequence B9 III or B9 Mn −0.007 0.004 α2 CVn −8.1 1.6 +87.132 +17.127 10.3618 0.0465 0.98 2.5 2.4 48 9,790 4.08 75 339 V388 Andromedae 13 And +42°4672 220885 115755 8913 53039 64250 13+And thumb|left|The visual band light curve of 13 Andromedae, adapted from Adelman (2005) 13 Andromedae, abbreviated 13 And, is a single, blue-white hued variable star in the northern constellation of Andromeda. 13 Andromedae is the Flamsteed designation, while it bears the variable star designation V388 Andromedae. With a typical apparent visual magnitude of around 5.75, it is dimly visible to the naked eye under good seeing conditions. The distance to this star can be directly estimated from its annual parallax shift of 10.4 mas, yielding a range of 315 light years. At that distance, its brightness is diminished by an extinction of 0.13 magnitude due to interstellar dust. The star is moving closer to the Earth with a heliocentric radial velocity of −8 km/s. The variability of 13 Andromedae was first detected in Hipparcos satellite data, and it received its variable star designation in 1999. This is a magnetic chemically peculiar star that has been assigned stellar classifications of B9 III or B9 Mn. It is a variable star of the Alpha2 Canum Venaticorum type, ranging in magnitude from 5.73 down to 5.77 with a period of 1.47946 days. The star has a high rate of spin, showing a projected rotational velocity of 75 km/s. 13 Andromedae is around 339 million years old and shines with 48 times the Sun's luminosity. References Adelman Saul J. uvby FCAPT Photometry of the Magnetic Chemically Peculiar Stars 36 Aurigae, HR 2722, 13 Andromedae, and HD 220147 Publications of the Astronomical Society of the Pacific May 2005 117 831 476–482 10.1086/429640 2005PASP..117..476A 120788302 free 13 And September 19, 2018 1925017677944306176 115755 Stassun Keivan G. Oelkers Ryan J. Paegert Martin Torres Guillermo Pepper Joshua De Lee Nathan Collins Kevin Latham David W. Muirhead Philip S. Chittidi Jay Rojas-Ayala Bárbara Fleming Scott W. Rose Mark E. Tenenbaum Peter Ting Eric B. Kane Stephen R. Barclay Thomas Bean Jacob L. Brassuer C. E. Charbonneau David Ge Jian Lissauer Jack J. Mann Andrew W. McLean Brian Mullally Susan Narita Norio Plavchan Peter Ricker George R. Sasselov Dimitar Seager S. 1 The Revised TESS Input Catalog and Candidate Target List The Astronomical Journal 2019 158 4 138 10.3847/1538-3881/ab3467 free 1905.10694 2019AJ....158..138S Kazarovets E. V. Samus N. N. Durlevich O. V. Frolov M. S. Antipin S. V. Kireeva N. N. Pastukhova E. N. The 74th Special Name-list of Variable Stars Information Bulletin on Variable Stars January 1999 4659 1 1999IBVS.4659....1K https://ibvs.konkoly.hu/pub/ibvs/4601/4659.pdf 5 November 2024 uvby FCAPT Photometry of the Magnetic Chemically Peculiar Stars 36 Aurigae, HR 2722, 13 Andromedae, and HD 220147 Adelman Saul J. . The Publications of the Astronomical Society of the Pacific 117 831 476–482 May 2005 10.1086/429640 2005PASP..117..476A free Paunzen E. Maitzen H. M. New variable chemically peculiar stars identified in the HIPPARCOS archive Astronomy and Astrophysics Supplement November 1998 133 1–6 10.1051/aas:1998305 1998A&AS..133....1P https://aas.aanda.org/articles/aas/pdf/1998/19/ds1554.pdf 5 November 2024 General catalogue of variable stars: Version GCVS 5.1 Samus' N. N Kazarovets E. V Durlevich O. V Kireeva N. N Pastukhova E. N Astronomy Reports 61 1 80 2017 . 10.1134/S1063772917010085 2017ARep...61...80S 125853869 Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system Gontcharov G. A. Astronomy Letters 32 11 759–771 2006 2006AstL...32..759G 10.1134/S1063773706110065 1606.08053 119231169 . Spatial distribution and kinematics of OB stars Gontcharov G. A. Astronomy Letters 38 11 694–706 November 2012 10.1134/S1063773712110035 2012AstL...38..694G 1606.09028 119108982 . 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 Abt Helmut A. Levato Hugo Grosso Monica Rotational Velocities of B Stars The Astrophysical Journal . 573 359–365 2002 1 2002ApJ...573..359A 10.1086/340590 free External links Image 13 Andromedae Category:B-type main-sequence stars Category:Magnetic chemically peculiar stars Category:Alpha2 Canum Venaticorum variables Category:Andromeda (constellation) Category:Durchmusterung objects Andromedae, 13 220885 115755 8913 Andromedae, V388 Category:B9III stars