Epsilon Canis Majoris (ε CMa, ε Canis Majoris) is the second brightest star in the constellation Canis Major, and one of the brightest stars in the night sky. It has the Bayer designation "epsilon" despite being the second brightest and not the fifth brightest star in its constellation. It has the traditional name Adhara (sometimes spelled Adara). The name is from the Arabic word عذارى ‘aðāra’, "virgins". It was once the brightest star in the sky, with an apparent magnitude of -3.99.