Binary star system in the constellation Auriga
41 Aurigae Observation dataEpoch J2000 Equinox J2000 Constellation Auriga 41 Aur A Right ascension 06h 11m 36.59156s [ 1] Declination +48° 42′ 39.5603″[ 1] Apparent magnitude (V)6.15[ 2] 41 Aur B Right ascension 06h 11m 36.55589s [ 3] Declination +48° 42′ 47.0528″[ 3] Apparent magnitude (V)6.84[ 2] Characteristics 41 Aur A Evolutionary stage Main sequence Spectral type A2Va+[ 4] B−Vcolor index 0.06[ 2] 41 Aur B Evolutionary stage Am star Spectral type kA5hA5mF0(IV-V)[ 4] B−Vcolor index 0.15[ 2] Astrometry 41 Aur A Radial velocity (Rv )31[ 5] km/s Proper motion (μ)RA: +15.085[ 1] mas /yr Dec.: −55.907[ 1] mas /yr Parallax (π)10.5367± 0.0689 mas [ 1] Distance 310 ± 2 ly pc ) 41 Aur B Radial velocity (Rv )29[ 5] km/s Proper motion (μ)RA: +17.183[ 3] mas /yr Dec.: −53.536[ 3] mas /yr Parallax (π)10.3314 ± 0.0711 mas [ 3] Distance 316 ± 2 ly pc ) Details 41 Aur A Temperature +278 [ 1] K Rotational velocity (v sin i )138[ 6] 41 Aur B Mass ± 0.10[ 7] M ☉ Radius +0.12 [ 3] R ☉ Luminosity ± 0.1[ 3] L ☉ Temperature +421 [ 3] K Rotational velocity (v sin i )133[ 7] Other designations 41 Aur BD +48°1352HIP 29388ADS 4773WDS J06116+484341 Aur A :GC 7853HD 42127HR 2176SAO 40925[ 8] 41 Aur B :GC 7851HD 42126HR 2175SAO 40924[ 9] Database references SIMBAD data
41 Aurigae is abinary star [ 10] light years away from the Sun in the northernconstellation ofAuriga . It is visible to the naked eye as a dim, white-hued star with a combinedapparent visual magnitude of 5.83.[ 10] radial velocity of 31 km/s.[ 11] Hyades Supercluster .[ 12]
As of 2012, the pair had anangular separation of″ position angle of 357.7°.[ 13] A-type main-sequence star with astellar classification of A2Va+[ 4] [ 2] [ 2] Am star [ 14] stellar classification of kA5hA5mF0(IV-V),[ 4] calcium K line andhydrogen lines of anA5 star and themetal lines of anF0 star.
^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 c d e f Høg, E.; Fabricius, C.; Makarov, V. V.; Urban, S.; Corbin, T.; et al. (March 2000), "The Tycho-2 catalogue of the 2.5 million brightest stars",Astronomy and Astrophysics ,355 :L27 – L30 ,Bibcode :2000A&A...355L..27H ,doi :10.1888/0333750888/2862 . ^a b c d e f g h 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 c d Gray, R. O.; Garrison, R. F. (December 1987), "The Early A-Type Stars: Refined MK Classification, Confrontation with Stroemgren Photometry, and the Effects of Rotation",Astrophysical Journal Supplement ,65 : 581,Bibcode :1987ApJS...65..581G ,doi :10.1086/191237 ^a b Evans, D. S. (June 20–24, 1966). "The Revision of the General Catalogue of Radial Velocities". In Batten, Alan Henry; Heard, John Frederick (eds.).Determination of Radial Velocities and their Applications, Proceedings from IAU Symposium no. 30 . University of Toronto:International Astronomical Union .Bibcode :1967IAUS...30...57E . ^ Royer, F.; et al. (February 2007), "Rotational velocities of A-type stars. III. Velocity distributions",Astronomy and Astrophysics ,463 (2):671– 682,arXiv :astro-ph/0610785 Bibcode :2007A&A...463..671R ,doi :10.1051/0004-6361:20065224 ,S2CID 18475298 . ^a b Zorec, J.; Royer, F. (2012), "Rotational velocities of A-type stars. IV. Evolution of rotational velocities",Astronomy & Astrophysics ,537 : A120,arXiv :1201.2052 Bibcode :2012A&A...537A.120Z ,doi :10.1051/0004-6361/201117691 ,S2CID 55586789 , A120. ^ "41 Aur A" .SIMBAD Centre de données astronomiques de Strasbourg . Retrieved2019-05-23 .^ "41 Aur B" .SIMBAD Centre de données astronomiques de Strasbourg . Retrieved2019-05-23 .^a b 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 . ^ 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 . ^ Eggen, O. J. (June 1985), "A systematic search for members of the Hyades Supercluster. IV - The metallic-line stars and ultrashort-period Cepheids",Astronomical Journal ,90 : 1046−1059,Bibcode :1985AJ.....90.1046E ,doi :10.1086/113812 . ^ Mason, Brian D.; et al. (May 2012), "Speckle Interferometry at the U.S. Naval Observatory. XVIII",The Astronomical Journal ,143 (5): 6,Bibcode :2012AJ....143..124M ,doi :10.1088/0004-6256/143/5/124 , 124. ^ Renson, P.; Manfroid, J. (2009), "Catalogue of Ap, HgMn and Am stars",Astronomy and Astrophysics ,498 (3):961– 966,Bibcode :2009A&A...498..961R ,doi :10.1051/0004-6361/200810788
