Editing Alpha Herculis (section)

==Nomenclature==

''α Herculis'' ([[Latinisation of names|Latinised]] to ''Alpha Herculis'') is the system's [[Bayer designation]]; ''α<sup>1</sup>'' and ''α<sup>2</sup> Herculis'', those of its two visible components. ''64 Herculis'' is the system's [[Flamsteed designation]]. WDS J17146+1423 is the wider system's designation in the [[Washington Double Star Catalog]]. The designations of Alpha Herculis' main components as ''Alpha Herculis A'' and ''B'' and the wider system's four components as WDS J17146+1423A, B, C and D, together with the spectroscopic pair - ''Alpha Herculis Ba'' and ''Bb'' - derive from the convention used by the Washington Multiplicity Catalog (WMC) for [[Star system|multiple star system]]s, and adopted by the [[International Astronomical Union]] (IAU).<ref name="planetnaming"/>

Alpha Herculis bore the traditional name ''Rasalgethi'' or ''Ras Algethi'' ({{langx|ar|رأس الجاثي ra‘is al-jāthī}} 'Head of the Kneeler').<ref name="BBC1"/> 'Head' comes from the fact that in antiquity Hercules was depicted upside down on maps of the constellation. In 2016, the IAU 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 ''Rasalgethi'' for the component Alpha Herculis A (α<sup>1</sup>) on 30 June 2016 and it is now so included in the List of IAU-approved Star Names.<ref name="WGSN"/>

The term ''ra's al-jaθiyy'' or ''Ras al Djathi'' appeared in the catalogue of stars in the ''Calendarium'' of [[Al Achsasi al Mouakket]], which was translated into [[Latin]] as ''Caput Ingeniculi''.<ref name=Knobel/>

In [[Chinese astronomy]], Alpha Herculis is called 帝座, [[Pinyin]]: Dìzuò, meaning 'Emperor's Seat'. The star is seen as marking itself, and stands alone in the center of the ''Emperor's Seat'' [[Asterism (astronomy)|asterism]], [[Heavenly Market enclosure]] (see: [[Chinese constellations]]).<ref name=aeea/> 帝座 (Dìzuò) was westernized into ''Ti Tso'' by R.H. Allen, with the same meaning <ref name=RHA/>