Color–magnitude diagram (CMD) of M 67 (photometry from Yadav et al. 2008) for probable members (P_μ > 60%, filled dots). Probable single stars within our sample are indicated with star symbols, and probable binaries with empty dots. The location of the Sun, as if it were within M 67, is marked with the  ⊙ . The 4-Gyr isochrones in red and blue are from the BaSTI library (Pietrinferni et al. 2004) for standard models and with overshooting, respectively. The isochrone in green is a 4.47 Gyr from Girardi et al. (2000).