Illustration of synthetic spectra generated with iSpec from the new VALD3 HFS atomic data for V compared with the CARMENES telluric-corrected composite spectrum of J14257+236W (gray) in several hyperfine-split V lines. Red solid, blue dashed, and magenta dotted lines are generic models with T_eff = 4000 K, log g = 4.5, [M/H]= 0.0, and V abundances of solar (i.e., , Asplund et al. 2009), +0.3 dex, and –0.3 dex. The best-matching model in green dash-dotted lines takes the basic stellar parameters from Schw19: T_eff = 4024 K, log g = 4.64, [M/H] = +0.17, and A(V) = –7.87 (i.e., [V/H] = +0.24), which simultaneously reproduces the overall shape of all the features. We note that the feature at 891.98 nm is blended with an Fe I line at 892.0 nm.