Blue-white α Crucis (Acrux) is the most southerly member of the constellation and, at magnitude 0.8, also the brightest. The three remaining stars of the main cross asterism appear clockwise and in order of lessening magnitude: β Crucis (Mimosa), γ Crucis (Gacrux), and δ Crucis (Imai). ε Crucis (Ginan) also lies within the cross asterism. Many of these brighter stars are members of the Scorpius–Centaurus Association, a large but loose group of hot blue-white stars that appear to share common origins and motion across the southern Milky Way.