Beta Boötis Beta Boötis Beta Boötis (β Boötis, abbreviated Beta Boo, β Boo), also named Nekkar, is a star in the northern constellation of Boötes. It has an apparent visual magnitude of 3.5, making it one of the brighter members of the constellation. In the modern constellation, it marks the head of Boötis the herdsman. Based upon parallax measurements obtained during the Hipparcos mission, this star is approximately from the Sun. At that distance, the magnitude of the star is reduced by 0.06 from extinction caused by intervening gas and dust. "β Boötis" (Latinised to "Beta Boötis") is the star's Bayer designation.
Auriga (constellation) of three constellations which represented poles for horses to be tethered. They were formed by the triplets of Epsilon, Zeta, and Eta Aurigae; Nu, Tau, and Upsilon Aurigae; and Chi and 26 Aurigae, with one other undetermined star. "Xianchi", the pond where the sun set and "Tianhuang", a pond, bridge, or pier, were other constellations in Auriga, though the stars that composed them are undetermined. "Zuoqi", representing chairs for the emperor and other officials, was made up of nine stars in the east of the constellation. "Bagu", a constellation mostly formed from stars in Camelopardalis representing different types of crops,