Alpha Herculis (α Her, α Herculis) is a multiple star system in the constellation Hercules. It has the traditional name Rasalgethi or Ras Algethi (Arabic:رأس الجاثي ra's al-jaθiyy‎ Head of the Kneeler), and the Flamsteed designation 64 Herculis. The traditional name "Head" comes from the fact that in antiquity Hercules was depicted upside down on the constellation maps.