a giant, orange, variable star in the constellation Boötes, the brightest star in the N celestial sphere: magnitude, ?0.05
Origin of ArcturusClassical Latin from Classical Greek Arktouros, guardian of the bear from arktos, a bear + ouros, a guard from Indo-European an unverified form woros, heedful from base an unverified form wer- (see warn): so named from its position behind the tail of Ursa Major in ancient diagrams of the constellation
The fourth brightest star in the sky and the brightest star in the constellation Boötes, approximately 36 light years from Earth.
Origin of ArcturusMiddle English from Latin Arctūrus from Greek Arktouros arktos bear ; see &rlowring;tko- in Indo-European roots. ouros guard (from its position behind Ursa Major) ; see wer-3 in Indo-European roots.
Borrowed from Latin Arctūrus.