Binary star system in the constellation Auriga
53 Aurigae Observation dataEpoch J2000 Equinox J2000 Constellation Auriga Right ascension 06h 38m 23.01009s [ 1] Declination +28° 59′ 03.6220″[ 1] Apparent magnitude (V)5.744[ 2] Characteristics Spectral type B9 Mn + F0m[ 3] U−Bcolor index −0.07[ 4] B−Vcolor index −0.02[ 4] Astrometry Radial velocity (Rv )± 5.0[ 5] km/s Proper motion (μ)RA: −16.390[ 1] mas /yr Dec.: −14.305[ 1] mas /yr Parallax (π)8.5139± 0.1372 mas [ 1] Distance 383 ± 6 ly pc ) Absolute magnitude (MV )+0.48[ 6] Orbit [ 7] Period (P)38.90yr Semi-major axis (a)0.159″ Eccentricity (e)0.557 Inclination (i)119.5° Longitude of the node (Ω)113.5° Periastron epoch (T)B 1976.73Argument of periastron (ω)343.3° Details 53 Aur A Mass ± 0.13[ 8] M ☉ Surface gravity (log g )4.0[ 3] cgs Temperature 10750[ 3] K Rotational velocity (v sin i )25[ 3] 53 Aur B Surface gravity (log g )4.0[ 3] cgs Temperature 7,250[ 3] K Rotational velocity (v sin i )0[ 3] Other designations BD +29°1293GC 8649HD 47152HIP 31737HR 2425SAO 78571PPM 96293CCDM J06384+2859WDS J06384+2859TYC 1892-236-1GSC 01892-00236Database references SIMBAD data
53 Aurigae is abinary star system in the northernconstellation ofAuriga . It is visible to the naked eye as a dim star with a combinedapparent visual magnitude of 5.74.[ 2] Parallax estimates put it at a distance of 383light-years (117parsecs ) away.[ 1] radial velocity of 13 km/s.[ 5]
The two components of 53 Aurigae orbit each other every 39 years with aneccentricity of 0.557.[ 7] chemically peculiar since it contains higher-than-normal amounts ofmanganese ,[ 3] europium ,chromium , andmercury .[ 8] B-type main-sequence mercury-manganese star,[ 8] F-type main-sequence star .[ 8] M ☉ .[ 8]
^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 atVizieR .^a b Høg, E.; et al. (2000). "The Tycho-2 catalogue of the 2.5 million brightest stars".Astronomy and Astrophysics .355 :L27 – L30 .Bibcode :2000A&A...355L..27H . ^a b c d e f g h Zverko, J.; Žižňovský, J.; Mikulášek, Z.; Iliev, I. Kh. (2008). "53 Aurigae revisited: a B9Mn + F0m composite spectrum".Contributions of the Astronomical Observatory Skalnaté Pleso .38 (2):467– 468.Bibcode :2008CoSka..38..467Z . ^a b Mermilliod, J.-C. (1986)."Compilation of Eggen's UBV data, transformed to UBV (unpublished)" .Catalogue of Eggen's UBV Data .Bibcode :1986EgUBV........0M . ^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 . ^ Murphy, Simon J.; Corbally, Christopher J.; Gray, Richard O.; Cheng, Kwang-Ping; Neff, James E.; Koen, Chris; Kuehn, Charles A.; Newsome, Ian; Riggs, Quinlin (2015). "An Evaluation of the Membership Probability of 212 λ Boo Stars. I. A Catalogue".Publications of the Astronomical Society of Australia .32 : e036.arXiv :1508.03633 Bibcode :2015PASA...32...36M .doi :10.1017/pasa.2015.34 .S2CID 59405545 . ^a b "Sixth Catalog of Orbits of Visual Binary Stars" . United States Naval Observatory. Archived fromthe original on 1 August 2017. Retrieved28 May 2017 .^a b c d e Wraight, K. T.; Fossati, L.; Netopil, M.; Paunzen, E.; Rode-Paunzen, M.; Bewsher, D.; Norton, A. J.; White, Glenn J. (2012)."A photometric study of chemically peculiar stars with the STEREO satellites - I. Magnetic chemically peculiar stars★" .Monthly Notices of the Royal Astronomical Society .420 (1):757– 772.arXiv :1110.6283 Bibcode :2012MNRAS.420..757W .doi :10.1111/j.1365-2966.2011.20090.x S2CID 14811051 .
