Both panels: comparison of our HIRES spectrum of TYC 4144 329 1 with δ Boo, τ Cet, and HD 171994 (G8 III, G8 V, and G8 IV, respectively). All spectra presented in this figure have been shifted to the Earth rest frame with wavelengths in air. Left panel: luminosity class sensitive features (such as Co i λ6450) indicate that TYC 4144 329 1 has a luminosity class in between that of a giant star and a dwarf star (Strassmeier & Fekel 1990). Right panel: TYC 4144 329 1 with HD 171994 overplotted, both spectra have R~ 40,000. A signal-to-noise ratio (S/N) ~190 HD 171994 spectrum was obtained from the ELODIE archive (Moultaka et al. 2004). We match our HIRES spectrum to the lower resolution pixel sampling of the ELODIE spectrum (pixel widths of ~1.3 km s ⁻¹ and ~3.1 km s ⁻¹ for HIRES and ELODIE, respectively). HD 171994 is our qualitative best match to TYC 4144 329 1, and hence we adopt its metallicity and absolute visual magnitude (Soubiran et al. 2008) for TYC 4144 329 1. From the adopted absolute visual magnitude, we estimate a distance of ~550 pc to the TYC 4144 329 system.