53 Aurigae

{{Short description|Binary star system in the constellation Auriga}}

{{Starbox begin}}

{{Starbox observe

| epoch=J2000

| ra={{RA|06|38|23.01009}}{{cite DR2|3434580588066944512}}

| dec={{DEC|+28|59|03.6220}}

| appmag_v=5.744{{cite journal|title=The Tycho-2 catalogue of the 2.5 million brightest stars|author1=Høg, E.|display-authors=etal|date=2000|journal=Astronomy and Astrophysics|volume=355|pages=L27–L30|bibcode=2000A&A...355L..27H}}

| constell=Auriga

}}

{{Starbox character

| class=B9 Mn + F0m{{cite journal|title=53 Aurigae revisited: a B9Mn + F0m composite spectrum|author1=Zverko, J.|author2=Žižňovský, J.|author3=Mikulášek, Z.|author4=Iliev, I. Kh.|journal=Contributions of the Astronomical Observatory Skalnaté Pleso|volume=38|number=2|pages=467–468|date=2008|bibcode=2008CoSka..38..467Z}}

| b-v = −0.02{{cite journal|author1=Mermilliod, J.-C.|title=Compilation of Eggen's UBV data, transformed to UBV (unpublished)|journal=Catalogue of Eggen's UBV Data|url=http://cdsads.u-strasbg.fr/cgi-bin/nph-bib_query?1986EgUBV........0M&db_key=AST&nosetcookie=1|date=1986|bibcode= 1986EgUBV........0M}}

| u-b = −0.07

| variable=

}}

{{Starbox astrometry

| radial_v={{Val|13.1|5.0}}{{citation | 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 }}

| prop_mo_ra=−16.390

| prop_mo_dec=−14.305

| parallax=8.5139

| p_error=0.1372

| parallax_footnote=

| absmag_v=+0.48{{cite journal|bibcode=2015PASA...32...36M |title=An Evaluation of the Membership Probability of 212 λ Boo Stars. I. A Catalogue |journal=Publications of the Astronomical Society of Australia |volume=32 |pages=e036 |last1=Murphy |first1=Simon J. |last2=Corbally |first2=Christopher J. |last3=Gray |first3=Richard O. |last4=Cheng |first4=Kwang-Ping |last5=Neff |first5=James E. |last6=Koen |first6=Chris |last7=Kuehn |first7=Charles A. |last8=Newsome |first8=Ian |last9=Riggs |first9=Quinlin |year=2015 |arxiv=1508.03633 |doi=10.1017/pasa.2015.34 |s2cid=59405545 }}

}}

{{Starbox orbit

| reference = {{cite web|url=http://www.usno.navy.mil/USNO/astrometry/optical-IR-prod/wds/orb6|title=Sixth Catalog of Orbits of Visual Binary Stars|publisher=United States Naval Observatory|access-date=28 May 2017|archive-date=1 August 2017|archive-url=https://web.archive.org/web/20170801102553/http://www.usno.navy.mil/USNO/astrometry/optical-IR-prod/wds/orb6|url-status=dead}}

| period = 38.90

| axis = 0.159

| eccentricity = 0.557

| inclination = 119.5

| node = 113.5

| periastron = B 1976.73

| periarg = 343.3

}}

{{Starbox detail

| component1=53 Aur A

| mass={{Val|2.49|0.13}}{{cite journal|bibcode=2012MNRAS.420..757W|doi=10.1111/j.1365-2966.2011.20090.x|arxiv=1110.6283|title=A photometric study of chemically peculiar stars with the STEREO satellites - I. Magnetic chemically peculiar stars★|journal=Monthly Notices of the Royal Astronomical Society|volume=420|pages=757–772|year=2012|last1=Wraight|first1=K. T.|last2=Fossati|first2=L.|last3=Netopil|first3=M.|last4=Paunzen|first4=E.|last5=Rode-Paunzen|first5=M.|last6=Bewsher|first6=D.|last7=Norton|first7=A. J.|last8=White|first8=Glenn J.|issue=1|doi-access=free |s2cid=14811051}}

| radius=

| temperature=10750

| gravity=4.0

| rotational_velocity=25

| component2=53 Aur B

| temperature2=7,250

| metal2=

| gravity2=4.0

| rotational_velocity2=0

}}

{{Starbox catalog

| names={{odlist|CCDM=J06384+2859|PPM=96293|GSC=01892-00236|HD=47152|SAO=78571|WDS=J06384+2859|BD=+29°1293|HIP=31737|GC=8649|HR=2425|TYC=1892-236-1}}

}}

{{Starbox reference

| Simbad=53+Aur

}}

{{Starbox end}}

53 Aurigae is a binary star system in the northern constellation of Auriga. It is visible to the naked eye as a dim star with a combined apparent visual magnitude of 5.74. Parallax estimates put it at a distance of {{Convert|383|ly|pc|abbr=off|lk=on}} away. The system is receding from the Earth with a heliocentric radial velocity of 13 km/s.

The two components of 53 Aurigae orbit each other every 39 years with an eccentricity of 0.557. The primary component, 53 Aurigae A, is chemically peculiar since it contains higher-than-normal amounts of manganese, but also europium, chromium, and mercury. It is a B-type main-sequence mercury-manganese star, while the secondary component, 53 Aurigae B, is an early F-type main-sequence star. The total mass of the system is estimated to be {{solar mass|4.8}}.