Selected portions of the Magellan/MIKE spectrum of Gaia DR3 4373465352415301632 (from left-hand to right-hand: the Mg triplet lines, Hα, and the Ca triplet). The spectrum of HD 126053, which has a spectral type of G1.5V (Gray et al. 2003), is overplotted in pink as a comparison. The close resemblance between the two stars in terms of line strengths and profiles is evident. The stellar parameters of HD 126053 are T _eff = 5700 K, ﹩\mathrm{log}g=4.5﹩, [Fe/H]= − 0.35 (e.g., Brewer et al. 2016,Casali20). The small deviations in the wings of some strong lines are likely caused by a combination of continuum normalization uncertainties and the ∼200 K difference in temperature between the two stars.