Star in the constellation Perseus
31 Persei is a single[ 13] star in the northernconstellation ofPerseus . It is visible to the naked eye as a dim, blue-white hued point of light with anapparent visual magnitude of 5.05.[ 2] [ 14] radial velocity of −1.6 km/s.[ 5] Alpha Persei Cluster .[ 15]
This object is a massiveB-type main-sequence star with astellar classification of B5V[ 3] hydrogen fusion at itscore . It is around 234[ 9] projected rotational velocity of 260 km/s.[ 10] [ 7] mass of the Sun and about 3.4[ 8] radius of the Sun . It is radiating 950[ 6] luminosity of the Sun from itsphotosphere at aneffective temperature of 15,301 K.[ 6]
^a b c d e Brown, A. G. A. ; et al. (Gaia collaboration ) (August 2018)."Gaia Data Release 2: Summary of the contents and survey properties" .Astronomy & Astrophysics 616 . A1.arXiv :1804.09365 Bibcode :2018A&A...616A...1G doi :10.1051/0004-6361/201833051 Gaia DR2 record for this source atVizieR .^a b Anderson, E.; Francis, Ch. (2012). "XHIP: An extended hipparcos compilation".Astronomy Letters .38 (5): 331.arXiv :1108.4971 Bibcode :2012AstL...38..331A .doi :10.1134/S1063773712050015 .S2CID 119257644 . Vizier catalog entry ^a b Hoffleit, D.; Warren, W. H. (1995). "VizieR Online Data Catalog: Bright Star Catalogue, 5th Revised Ed. (Hoffleit+, 1991)".VizieR On-line Data Catalog: V/50. Originally Published in: 1964BS....C......0H .5050 .Bibcode :1995yCat.5050....0H . ^a b Mallama, A. (2014). "Sloan Magnitudes for the Brightest Stars".The Journal of the American Association of Variable Star Observers .42 (2): 443.Bibcode :2014JAVSO..42..443M . Vizier catalog entry ^a b Gontcharov, G. A. (2006). "Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system".Astronomy Letters .32 (11):759– 771.arXiv :1606.08053 Bibcode :2006AstL...32..759G .doi :10.1134/S1063773706110065 .S2CID 119231169 . ^a b c d e Silaj, J.; Landstreet, J. D. (2014). "Accurate age determinations of several nearby open clusters containing magnetic Ap stars".Astronomy & Astrophysics .566 : A132.arXiv :1407.4531 Bibcode :2014A&A...566A.132S .doi :10.1051/0004-6361/201321468 .S2CID 53370832 . ^a b Sheikhi, Najmeh; et al. (March 2016)."The binary fraction and mass segregation in Alpha Persei open cluster" .Monthly Notices of the Royal Astronomical Society .457 (1):1028– 1036.arXiv :1601.02186 Bibcode :2016MNRAS.457.1028S .doi :10.1093/mnras/stw059 ^a b Pasinetti Fracassini, L. E.; et al. (February 2001). "Catalogue of Apparent Diameters and Absolute Radii of Stars (CADARS)".Astronomy and Astrophysics .367 (2) (Third ed.):521– 524.arXiv :astro-ph/0012289 Bibcode :2001A&A...367..521P .doi :10.1051/0004-6361:20000451 .S2CID 425754 . ^a b Gontcharov, G. A. (2012). "Dependence of kinematics on the age of stars in the solar neighborhood".Astronomy Letters .38 (12):771– 782.arXiv :1606.08814 Bibcode :2012AstL...38..771G .doi :10.1134/S1063773712120031 .S2CID 118345778 . Vizier catalog entry ^a b Abt, Helmut A.; et al. (2002)."Rotational Velocities of B Stars" .The Astrophysical Journal .573 (1):359– 365.Bibcode :2002ApJ...573..359A .doi :10.1086/340590 ^ Gontcharov, G. A. (November 2012). "Spatial distribution and kinematics of OB stars".Astronomy Letters .38 (11):694– 706.arXiv :1606.09028 Bibcode :2012AstL...38..694G .doi :10.1134/S1063773712110035 .S2CID 119108982 . ^ "31 Per" .SIMBAD Centre de données astronomiques de Strasbourg . Retrieved2019-07-13 .^ Eggleton, P. P.; Tokovinin, A. A. (September 2008)."A catalogue of multiplicity among bright stellar systems" .Monthly Notices of the Royal Astronomical Society .389 (2):869– 879.arXiv :0806.2878 Bibcode :2008MNRAS.389..869E .doi :10.1111/j.1365-2966.2008.13596.x S2CID 14878976 . ^ Van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction".Astronomy and Astrophysics .474 (2):653– 664.arXiv :0708.1752 Bibcode :2007A&A...474..653V .doi :10.1051/0004-6361:20078357 .S2CID 18759600 . Vizier catalog entry ^ Zuckerman, B.; et al. (June 2012). "Stellar Membership and Dusty Debris Disks in the α Persei Cluster".The Astrophysical Journal .752 (1): 12.arXiv :1204.3950 Bibcode :2012ApJ...752...58Z .doi :10.1088/0004-637X/752/1/58 .S2CID 119207634 . 58.
