Star in the constellation Perseus
4 Persei is a single[ 10] star in the northern constellation of Perseus , located around 670 light years away from the Sun.[ 1] It is visible to the naked eye as a faint, blue-white hued star with an apparent visual magnitude of 5.04[ 2] The Bayer designation for this star is g Persei ; 4 Persei is the Flamsteed designation . This object has a peculiar velocity of 26.3 km/s and may be a runaway star .[ 11]
The stellar classification for 4 Persei is B8 III,[ 3] matching an aging B-type giant star that has evolved off the main sequence . It is spinning with a projected rotational velocity of 60 km/s[ 8] and has about 3.2[ 6] times the Sun's radius The star is radiating 670[ 5] times the luminosity of the Sun from its photosphere at an effective temperature of 12,230 K.[ 7] 4 Persei is embedded in a small, relatively dense dust cloud, which is resulting in infrared emission from the cold dust.[ 12]
^ a b c d e f 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 at VizieR .
^ a b c d Ducati, J. R. (2002). "VizieR Online Data Catalog: Catalogue of Stellar Photometry in Johnson's 11-color system". CDS/ADC Collection of Electronic Catalogues . 2237 . Bibcode :2002yCat.2237....0D .
^ 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 .
^ 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 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 Pasinetti Fracassini, L. E.; Pastori, L.; Covino, S.; Pozzi, A. (February 2001). "Catalogue of Apparent Diameters and Absolute Radii of Stars (CADARS)". Astronomy and Astrophysics . 367 (Third ed.): 521–524. arXiv :astro-ph/0012289 . Bibcode :2001A&A...367..521P . doi :10.1051/0004-6361:20000451 . S2CID 425754 .
^ a b c d Wu, Yue; Singh, H. P.; Prugniel, P.; Gupta, R.; Koleva, M. (2010). "Coudé-feed stellar spectral library – atmospheric parameters". Astronomy & Astrophysics . 525 : A71. arXiv :1009.1491 . Bibcode :2011A&A...525A..71W . doi :10.1051/0004-6361/201015014 . S2CID 53480665 .
^ a b Abt, Helmut A.; Levato, Hugo; Grosso, Monica (2002). "Rotational Velocities of B Stars" . The Astrophysical Journal . 573 (1): 359–365. Bibcode :2002ApJ...573..359A . doi :10.1086/340590 .
^ "4 Per" . SIMBAD . Centre de données astronomiques de Strasbourg . Retrieved 2018-03-27 .
^ Eggleton, P. P.; Tokovinin, A. A. (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 . {{citation }}
: CS1 maint: unflagged free DOI (link )
^ Tetzlaff, N.; Neuhäuser, R.; Hohle, M. M. (January 2011), "A catalogue of young runaway Hipparcos stars within 3 kpc from the Sun", Monthly Notices of the Royal Astronomical Society , 410 (1): 190–200, arXiv :1007.4883 , Bibcode :2011MNRAS.410..190T , doi :10.1111/j.1365-2966.2010.17434.x , S2CID 118629873 {{citation }}
: CS1 maint: unflagged free DOI (link )
^ Tovmassian, H. M.; et al. (February 1995), "Dust Shells of Distant Young Stars", Astrophysics and Space Science , 224 (1–2): 577–578, Bibcode :1995Ap&SS.224..577T , doi :10.1007/BF00667963 , S2CID 189848223