At magnitude 1.5, Epsilon Canis Majoris (Adhara) is the second brightest star of the constellation, followed by Delta (Wezen) at 1.8, Beta (Mirzam) at 2.0 and Eta (Aludra) at 2.4.
At magnitude 1.5, Epsilon Canis Majoris (Adhara) is the second brightest star of the constellation and one of the brightest sources of ultraviolet radiation in the night sky. Next in brightness are Delta (Wezen) at 1.8, Beta (Mirzam) at 2.0 and Eta (Aludra) at 2.4.