MMT spectrum and best-fit model

MMT spectrum (in black) and best-fit model (red line). The strongest lines are indicated by tick marks. All the other numerous non-identified lines are from iron. They have not been marked for clarity. The fit of the star yields an effective temperature of 13,600 K, 0.91 solar mass, 0.97 Earth radius and a distance of 136 pc (or 445 light-years). The determined abundances are log H/He = -5.7, log O/He = -4.0, log Mg/He = -4.7, log Si/He = -4.9, log Ca/He = -6.8 and log Fe/He = -5.1.