Capella is the brightest star in the constellation Auriga , the sixth brightest in the night sky and the third brightest in the northern celestial hemisphere , after Arcturus and Vega .
Capella ( α Aurigae , α Aur , Alpha Aurigae ) is the brightest star in the constellation Auriga , the eleventh brightest star in the night sky and the third brightest star in the northern celestial hemisphere , after Arcturus and Vega .