Star in the constellation Perseus
54 Persei Location of 54 Persei (circled)
Observation dataEpoch J2000 Equinox J2000 Constellation Perseus Right ascension 04h 20m 24.63885s [ 1] Declination 34° 34′ 00.2033″[ 1] Apparent magnitude (V)4.93[ 2] Characteristics Spectral type G8+ IIIb[ 3] U−Bcolor index +0.69[ 4] B−Vcolor index +0.95[ 4] Astrometry Radial velocity (Rv )−26.82[ 5] km/s Proper motion (μ)RA: −25.046[ 1] mas /yr Dec.: −6.420[ 1] mas /yr Parallax (π)14.8484± 0.1993 mas [ 1] Distance 220 ± 3 ly pc ) Absolute magnitude (MV )0.80[ 6] Details[ 7] Mass ± 0.10M ☉ Radius ± 0.22R ☉ Luminosity ± 2.0L ☉ Surface gravity (log g )± 0.03cgs Temperature ± 32K Metallicity [Fe/H] ± 0.10dex Rotational velocity (v sin i )1.8[ 8] Age ± 90Myr Other designations 54 Per ,BD +34°860FK5 158GC 5235HD 27348HIP 20252HR 1343SAO 57171CCDM J04204+3435AWDS J04204+3434A[ 9] Database references SIMBAD data
54 Persei is a single[ 10] star in the northernconstellation ofPerseus . It is visible to the naked eye as a faint, yellow-hued star with anapparent visual magnitude of 4.93.[ 2] light years away based onparallax , but is drifting closer with aradial velocity of −27 km/s.[ 5]
This is an aginggiant star with astellar classification of G8+ IIIb,[ 3] core and expanded to more than nine times the girth of the Sun. It is around 580 million years old with 2.6 times themass of the Sun . The star is radiating 51 times theluminosity of the Sun from its enlargedphotosphere at aneffective temperature of 5,036 K.[ 7] visual companion , designated component B, at anangular separation of″ [ 11]
^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 Keenan, Philip C.; McNeil, Raymond C. (1989). "The Perkins catalog of revised MK types for the cooler stars".Astrophysical Journal Supplement Series .71 : 245.Bibcode :1989ApJS...71..245K .doi :10.1086/191373 . ^a b Mermilliod, J. C. (2006). "Homogeneous Means in the UBV System (Mermilliod 1991)".VizieR On-line Data Catalog: II/168. Originally Published in: Institut d'Astronomie .2168 .Bibcode :2006yCat.2168....0M . Vizier catalog entry ^a b Jofré, E.; et al. (2015). "Stellar parameters and chemical abundances of 223 evolved stars with and without planets".Astronomy & Astrophysics .574 : A50.arXiv :1410.6422 Bibcode :2015A&A...574A..50J .doi :10.1051/0004-6361/201424474 .S2CID 53666931 . Vizier catalog entry ^ Da Silva, Ronaldo; et al. (2015). "Homogeneous abundance analysis of FGK dwarf, subgiant, and giant stars with and without giant planets".Astronomy & Astrophysics .580 : A24.arXiv :1505.01726 Bibcode :2015A&A...580A..24D .doi :10.1051/0004-6361/201525770 .S2CID 119216425 . Vizier catalog entry ^a b Reffert, Sabine; et al. (2015). "Precise radial velocities of giant stars".Astronomy & Astrophysics .574 : A116.arXiv :1412.4634 Bibcode :2015A&A...574A.116R .doi :10.1051/0004-6361/201322360 .hdl :10722/215277 .S2CID 59334290 . Vizier catalog entry ^ De Medeiros, J. R.; Mayor, M. (1999). "A catalog of rotational and radial velocities for evolved stars".Astronomy and Astrophysics Supplement Series .139 (3): 433.arXiv :astro-ph/0608248 Bibcode :1999A&AS..139..433D .doi :10.1051/aas:1999401 . Vizier catalog entry ^ "54 Per" .SIMBAD Centre de données astronomiques de Strasbourg . Retrieved2019-07-21 .^ 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 . ^ Mason, Brian D.; et al. (2001)."The 2001 US Naval Observatory Double Star CD-ROM. I. The Washington Double Star Catalog" .The Astronomical Journal .122 (6): 3466.Bibcode :2001AJ....122.3466M .doi :10.1086/323920 Vizier catalog entry
