}}{{Starbox detail
| mass = 0.871[8]
| radius =
| luminosity =
| temperature = 5,257[8]
| metal_fe = +0.16[15]
| gravity = 4.55[8]
| rotation = 11 days[15]
| rotational_velocity = 2.80[7]
| age_gyr = 3.76[8]
}}{{Starbox catalog
| names=BD+53° 934, GJ 211, HD 37394, HIP 26779, HR 1925, NSV 16618.[20]
}}{{Starbox reference
| Simbad=V538+Aur
}}{{Starbox end}}V538 Aurigae is a star in the northern constellation of Auriga. With an apparent visual magnitude of 6.23, this star requires good dark sky conditions to view with the naked eye. It is located at a distance of {{Convert|40.0|ly|pc|lk=on}} from Earth.
This is a BY Draconis variable,[7] which means it undergoes changes in luminosity because regions of pronounced surface magnetic activity are moved into and out of the line of sight from the Earth as the star rotates (once every 11 days).[15] This has a spectral class of K1 V, indicating that it is a K-type main sequence star. It is a member of the Local Association,[4] and is most likely a thin disk star.[8]
References
1. ^1 2 3 4 5 {{citation | last1=van Leeuwen | first1=F. | title=Validation of the new Hipparcos reduction | journal=Astronomy and Astrophysics | volume=474 | issue=2 | pages=653–664 | date=2007 | arxiv=0708.1752 | bibcode=2007A&A...474..653V | doi=10.1051/0004-6361:20078357 | postscript=.}}
2. ^1 2 {{citation | display-authors=1 | last1=Montes | first1=D. | last2=López-Santiago | first2=J. | last3=Gálvez | first3=M. C. | last4=Fernández-Figueroa | first4=M. J. | last5=De Castro | first5=E. | last6=Cornide | first6=M. | title=Late-type members of young stellar kinematic groups - I. Single stars | journal=Monthly Notices of the Royal Astronomical Society | volume=328 | issue=1 | pages=45–63 | date=November 2001 | doi=10.1046/j.1365-8711.2001.04781.x | bibcode=2001MNRAS.328...45M | arxiv=astro-ph/0106537 | postscript=.| url=http://eprints.ucm.es/30941/1/castrorubio18libre.pdf}}
3. ^1 2 3 4 5 6 {{citation | display-authors=1 | last1=Ramírez | first1=I. | last2=Allende Prieto | first2=C. | last3=Lambert | first3=D. L. | title=Oxygen abundances in nearby FGK stars and the galactic chemical evolution of the local disk and halo | journal=The Astrophysical Journal | volume=764 | issue=1 | page=78 | date=February 2013 | doi=10.1088/0004-637X/764/1/78 | bibcode=2013ApJ...764...78R | arxiv=1301.1582 | postscript=.}}
4. ^1 2 3 {{citation | display-authors=1 | last1=Maldonado | first1=J. | last2=Martínez-Arnáiz | first2=R. M. | last3=Eiroa | first3=C. | last4=Montes | first4=D. | last5=Montesinos | first5=B. | title=A spectroscopy study of nearby late-type stars, possible members of stellar kinematic groups | journal=Astronomy and Astrophysics | volume=521 | page=A12 | date=October 2010 | doi=10.1051/0004-6361/201014948 | bibcode=2010A&A...521A..12M | arxiv = 1007.1132 | postscript=.}}
5. ^1 2 3 {{citation | display-authors=1 | last1=Mishenina | first1=T. V. | last2=Soubiran | first2=C. | last3=Kovtyukh | first3=V. V. | last4=Katsova | first4=M. M. | last5=Livshits | first5=M. A. | title=Activity and the Li abundances in the FGK dwarfs | journal=Astronomy & Astrophysics | volume=547 | id=A106 | pages=8 |date=November 2012 | doi=10.1051/0004-6361/201118412 | bibcode=2012A&A...547A.106M | arxiv=1210.6843}}
6. ^1 2 3 {{citation | last1=Mermilliod | first1=J.-C. | title=Compilation of Eggen's UBV data, transformed to UBV (unpublished) | journal=Catalogue of Eggen's UBV data. SIMBAD | date=1986 | bibcode=1986EgUBV........0M | postscript=.}}
7. ^1 {{citation | title=HR 1925 -- Variable of BY Dra type | work=SIMBAD Astronomical Database | publisher=Centre de Données astronomiques de Strasbourg | url=http://simbad.u-strasbg.fr/simbad/sim-id?Ident=HD+37394 | accessdate=2016-01-17 | postscript=.}}