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{{Night Sky
| image =
| designation =Rigil Kentaurus<br/>Alf Cen<br/>Gliese 559A
| rightascension =14<sup>h</sup> 39<sup>m</sup> 36.4940<sup>s</sup><ref name=simbad>{{cite web|url=http://simbad.u-strasbg.fr/simbad/sim-id?Ident=Alpha+Centauri+A|title=Alpha Centauri A|accessdate=June 29, 2020|work=Simbad Astronomical Database|publisher=simbad.u-strasbg.fr}}</ref><ref name=hip>
{{cite journal
|last1=Van Leeuwen |first1=F.
|display-authors=3
|title=Validation of the new Hipparcos reduction.
|journal=stronomy and Astrophysics
|volume=474
|issue=|page=653-664|date=2007
|doi=10.1051/0004-6361:20078357
|bibcode=2007A&A...474..653V
|ref=harv
}} {{arXiv|0708.1752}}
</ref>
| declination =-60° 50′ 02.3737″<ref name=simbad/><ref name=hip/>
| distance =4.32 ly<ref name=universeguide>{{cite web|url=https://www.universeguide.com/star/71683/rigilkentaurus|title=Rigil Kentaurus (Alpha Centauri) Star Facts|accessdate=June 29, 2020|publisher=universeguide.com}}</ref>
| constellation =Centaurus
| type =Star
| dimensions =
| magnitude =Apparent Mag: -0.01<ref name=universeguide/><br/>Absolute Mag: +4.34/+4.39<ref name=universeguide/>
| redshift =
| radvelocity =-21.40 ± 0.76<ref name=simbad/><ref>
{{cite journal
|last1=Valenti |first1=Jeff A.
|last2=Fischer |first2=Debra A.
|display-authors=3
|title=Spectroscopic Properties of Cool Stars (SPOCS). I. 1040 F, G, and K Dwarfs from Keck, Lick, and AAT Planet Search Programs
|journal=The Astrophysical Journal Supplement Series
|volume=159
|issue=1|page=141-166|date=2005
|doi=10.1086/430500
|bibcode=2005ApJS..159..141V
|ref=harv
}}
</ref>
| propmotion =RA: -3679.25 mas/yr<ref name=simbad/><ref name=hip/<br/>Dec: 473.67 mas/yr<ref name=simbad/><ref name=hip/>
| parallax =743 ± 1.3 mas<ref name=simbad/><ref>
{{cite journal
|last1=Pourbaix |first1=Dimitri
|last2=Boffin |first2=Henri M. J.
|display-authors=3
|title=Parallax and masses of α Centauri revisited.
|journal=Astronomy and Astrophysics
|volume=586A
|issue=|page=90-90|date=2016
|doi=10.1051/0004-6361/201527859
|bibcode=2016A&A...586A..90P
|ref=harv
}} {{arXiv|1601.01636 }}
</ref>
}}
'''Alpha Centauri''' is a star in the constellation Centaurus and the third brightest in the sky. Alpha Centauri is a double star system consisting of Alpha Centauri A and Alpha Centauri B. Alpha Centauri is between 4 and 5 [[light year]]s from the [[Solar System]]. [[Proxima Centauri]] is slightly closer to the [[Solar System]] than these 2 stars.
'''Alpha Centauri''' is a star in the constellation Centaurus and the third brightest in the sky. Alpha Centauri is a double star system consisting of Alpha Centauri A and Alpha Centauri B. Alpha Centauri is between 4 and 5 [[light year]]s from the [[Solar System]]. [[Proxima Centauri]] is slightly closer to the [[Solar System]] than these 2 stars.