Editing Alpha Centauri (section)

==== Alpha Centauri C ====
{{Main|Proxima Centauri}}

Alpha Centauri C, better known as Proxima Centauri, is a small main-sequence [[red dwarf]] of spectral class M6-Ve. It has an [[absolute magnitude]] of +15.60, over 20,000 times fainter than the Sun. Its mass is calculated to be {{Solar mass|{{val|0.1221}}}}.<ref name="KervellaThévenin2017">{{cite journal|last1=Kervella|first1=P.|last2=Thévenin|first2=F.|last3=Lovis|first3=C.|title=Proxima's orbit around α Centauri |journal=Astronomy & Astrophysics|volume=598|year=2017|pages=L7|issn=0004-6361|doi=10.1051/0004-6361/201629930|arxiv=1611.03495|bibcode=2017A&A...598L...7K|s2cid=50867264}}</ref> It is the closest star to the Sun but is too faint to be visible to the naked eye.<ref name=ESA>{{cite web |title=Proxima Centauri UV flux distribution |url=http://sdc.cab.inta-csic.es/ines/Ines_PCentre/Demos/Fluxdist/pcentauri.html |access-date=July 11, 2007 |publisher=[[ESA]]|work=The Astronomical Data Centre}}</ref>

<div style="overflow:auto;">[[File:Relative positions of Sun, Alpha Centauri AB and Proxima Centauri.png|thumb|upright=5|center|Relative positions of Sun, Alpha Centauri AB and Proxima Centauri. Grey dot is projection of Proxima Centauri, located at the same distance as Alpha Centauri AB.|alt=Very wide rectangle with a dot labelled "Sun" on the left and two dots respectively labelled "Alpha Centauri AB" and "Proxima Centauri" on the right side, joined by lines labelled with distances and angles]]</div>