41 Aurigae
{{Short description|Binary star system in the constellation Auriga}}
{{Starbox begin}}
{{Starbox observe 2s
| epoch = J2000
| constell = Auriga
| component1 = 41 Aur A
| dec1 = {{DEC|+48|42|39.5603}}
| component2 = 41 Aur B
| dec2 = {{DEC|+48|42|47.0528}}
}}
{{Starbox character
| component1 = 41 Aur A
| type = Main sequence
| u-b =
| variable =
| component2 = 41 Aur B
| type2 = Am star
| u-b2 =
| variable2 =
}}
{{Starbox astrometry
| component1 = 41 Aur A
| parallax = 10.5367
| p_error = 0.0689
| absmag_v =
| component2 = 41 Aur B
| parallax2 = 10.3314
| p_error2 = 0.0711
| absmag_v2 =
}}
{{Starbox detail
| source =
| component1 = 41 Aur A
| mass =
| radius =
| luminosity =
| temperature = {{Val|9000|278|596|fmt=commas}}
| metal_fe =
| gravity =
| age_gyr =
| component2 = 41 Aur B
| radius2 = {{Val|1.78|0.12|0.18}}
| luminosity2 = {{Val|11.2|0.1}}
| temperature2 = {{Val|7925|421|260|fmt=commas}}
| metal_fe2 =
| gravity2 =
| age_gyr2 =
}}
{{Starbox catalog
| names = {{odlist | F=41 Aur | BD=+48°1352 | HIP=29388 | ADS=4773 | WDS=J06116+4843 }}
| component1 = 41 Aur A
| names1 = {{odlist | HD=42127 | HR=2176 | SAO=40925 | GC=7853 }}
| component2 = 41 Aur B
| names2 = {{odlist | HD=42126 | HR=2175 | SAO=40924 | GC=7851 }}
}}
{{Starbox reference
| Simbad = 41+Aur
}}
{{Starbox end}}
41 Aurigae is a binary star system located around 310–316 light years away from the Sun in the northern constellation of Auriga. It is visible to the naked eye as a dim, white-hued star with a combined apparent visual magnitude of 5.83. This system is moving further from the Earth with a heliocentric radial velocity of 31 km/s. It is a probable member of the Hyades Supercluster.
As of 2012, the pair had an angular separation of {{Val|7.39|ul=arcsecond}} along a position angle of 357.7°. The primary component is an A-type main-sequence star with a stellar classification of A2Va+ and a visual magnitude of 6.15. The magnitude 6.84 secondary companion is a possible Am star with a stellar classification of kA5hA5mF0(IV-V), showing the calcium K line and hydrogen lines of an A5 star and the metal lines of an F0 star.
References
{{Reflist|refs=
{{cite simbad | title=41 Aur A | access-date=2019-05-23 }}
{{cite simbad | title=41 Aur B | access-date=2019-05-23 }}
{{cite DR2|970003524691958528}}
{{cite DR2|970003524691852928}}
| title=XHIP: An extended hipparcos compilation
| last1=Anderson | first1=E. | last2=Francis | first2=Ch.
| journal=Astronomy Letters | postscript=.
| volume=38 | issue=5 | pages=331 | year=2012
| bibcode=2012AstL...38..331A | arxiv=1108.4971
| doi=10.1134/S1063773712050015 | s2cid=119257644 }}
| last=Evans |first=D. S. | date=June 20–24, 1966
| editor1-last=Batten | editor1-first=Alan Henry
| editor2-last=Heard | editor2-first=John Frederick
| title=The Revision of the General Catalogue of Radial Velocities
| book-title=Determination of Radial Velocities and their Applications, Proceedings from IAU Symposium no. 30
| location=University of Toronto
| publisher=International Astronomical Union
| bibcode=1967IAUS...30...57E }}
| title=The Early A-Type Stars: Refined MK Classification, Confrontation with Stroemgren Photometry, and the Effects of Rotation
| last1=Gray | first1=R. O. | last2=Garrison | first2=R. F.
| journal=Astrophysical Journal Supplement
| volume=65 | page=581 | date=December 1987
| doi=10.1086/191237 | bibcode=1987ApJS...65..581G | doi-access=free }}
| last1=Høg | first1=E. | last2=Fabricius | first2=C.
| last3=Makarov | first3=V. V. | last4=Urban | first4=S.
| last5=Corbin | first5=T. | last6=Wycoff | first6=G.
| last7=Bastian | first7=U. | last8=Schwekendiek | first8=P.
| last9=Wicenec | first9=A. | display-authors=5
| title=The Tycho-2 catalogue of the 2.5 million brightest stars
| journal=Astronomy and Astrophysics | postscript=.
| volume=355 | pages=L27–L30 | date=March 2000
| bibcode=2000A&A...355L..27H | doi=10.1888/0333750888/2862}}
| display-authors=1 | last1=Royer | first1=F.
| last2=Zorec | first2=J. | last3=Gómez | first3=A. E.
| title=Rotational velocities of A-type stars. III. Velocity distributions
| journal=Astronomy and Astrophysics
| volume=463 | issue=2 | pages=671–682 | date=February 2007
| doi=10.1051/0004-6361:20065224 | bibcode=2007A&A...463..671R
| arxiv=astro-ph/0610785 | s2cid=18475298 | postscript=. }}
| display-authors=1 | last1=Mason | first1=Brian D.
| last2=Hartkopf | first2=William I. | last3=Friedman | first3=Elizabeth A.
| title=Speckle Interferometry at the U.S. Naval Observatory. XVIII
| journal=The Astronomical Journal | postscript=.
| volume=143 | issue=5 | id=124 | pages=6 | date=May 2012
| doi=10.1088/0004-6256/143/5/124 | bibcode=2012AJ....143..124M }}
| last1=Eggleton | first1=P. P. | last2=Tokovinin | first2=A. A.
| title=A catalogue of multiplicity among bright stellar systems
| journal=Monthly Notices of the Royal Astronomical Society
| volume=389 | issue=2 | pages=869–879 | date=September 2008
| doi=10.1111/j.1365-2966.2008.13596.x | doi-access=free | postscript=.
| bibcode=2008MNRAS.389..869E | arxiv=0806.2878 | s2cid=14878976 }}
| title=Rotational velocities of A-type stars. IV. Evolution of rotational velocities
| journal=Astronomy & Astrophysics
| volume=537 | id=A120 | year=2012
| last1=Zorec | first1=J. | last2=Royer | first2=F.
| pages=A120
| doi=10.1051/0004-6361/201117691 | bibcode=2012A&A...537A.120Z
| arxiv=1201.2052 | s2cid=55586789
| postscript=. }}
| title=Catalogue of Ap, HgMn and Am stars
| last1=Renson | first1=P. | last2=Manfroid | first2=J.
| journal=Astronomy and Astrophysics
| volume=498 | issue=3 | pages=961–966 | year=2009
| bibcode=2009A&A...498..961R | postscript=. | doi=10.1051/0004-6361/200810788| doi-access=free }}
| title=A systematic search for members of the Hyades Supercluster. IV - The metallic-line stars and ultrashort-period Cepheids
| last1=Eggen | first1=O. J.
| journal=Astronomical Journal | postscript=.
| volume=90 | pages=1046−1059 | date=June 1985
| doi=10.1086/113812 | bibcode=1985AJ.....90.1046E }}
}}
{{Stars of Auriga}}
{{DEFAULTSORT:41 Aurigae}}
Category:A-type main-sequence stars