Positions of the two components of HD 74057 (primary: filled circle; secondary: open circle) in a theoretical H-R diagram compared with the Yonsei-Yale evolutionary tracks. The dashed line corresponds to a track for the mean mass of the components ( M = 1.134 M _☉) and solar metallicity, while the solid line results from the same mass but a metallicity of Z = 0.031 or [Fe/H] = 0.2.