Evolutionary tracks (magenta solid lines) and isochrones (blue dots and dashed lines) from Yonsei-Yale, calculated for different values of metallicity, showing how to derive the stellar masses and ages. The ages in Gyr are indicated alongside the evolutionary tracks, for which the masses are indicated in M_⊙. The Sun’s position for T_eff = 5777 K is also shown in the solar metallicity panel (top-left corner).