Tags: Star.
Eta Boötis (η Boo η Boötis) is a star in the constellation Boötes. It has the traditional names Muphrid and Saak and the Flamsteed designation 8 Boötis. Since 1943 the spectrum of this star has served as one of the stable anchor points by which other stars are classified.The name Muphrid is from the Arabic مفرد الرامح mufrid ar-rāmiħ the (single) one of the lancer.
