Editing Beta Centauri (section)

==Nomenclature==
''β Centauri'' (Latinised to ''Beta Centauri'') is the star system's [[Bayer designation]].

It bore the traditional names ''Hadar'' and ''Agena''. ''Hadar'' comes from the [[Arabic]] حضار (the root's meaning is "to be present" or "on the ground" or "settled, civilized area"<ref name=wehr/>), while the name ''Agena'' {{IPAc-en|@|'|dZ|iː|n|@}} is thought to be derived from the [[Latin]] ''genua'', meaning "knees", from the star's position on the left knee of the [[centaur]] depicted in the constellation [[Centaurus]]. In 2016, the [[International Astronomical Union]] organized a [[IAU Working Group on Star Names|Working Group on Star Names]] (WGSN)<ref name="WGSN"/> to catalog and standardize proper names for stars. The WGSN approved the name ''Hadar'' for the star β Centauri Aa on 21 August 2016 and it is now so entered in the IAU Catalog of Star Names.<ref name="IAU-CSN"/> 

The Chinese name for the star is 马腹一 ([[Standard Chinese|Mandarin]]: mǎ fù yī, "the First Star of the Horse's Abdomen").<ref>{{in lang|zh}} [http://aeea.nmns.edu.tw/2006/0607/ap060729.html AEEA (Activities of Exhibition and Education in Astronomy) 天文教育資訊網 2006 年 7 月 29 日] {{Webarchive|url=https://web.archive.org/web/20110522124325/http://aeea.nmns.edu.tw/2006/0607/ap060729.html |date=2011-05-22 }}</ref>

The [[Wergaia|Boorong]] people indigenous to what is now northwestern [[Victoria, Australia]] named it ''Bermbermgle'' (together with [[α Centauri]]),<ref name=hamacher/> two brothers who were noted for their courage and destructiveness, and who spear and kill Tchingal, "The Emu" ([[Coalsack Nebula]]).<ref name=stanbridge/> The [[Wotjobaluk people]] name the two brothers ''Bram-bram-bult''.<ref name=hamacher/>