\begin{table}%t1 \caption{\label{TableStar}Observed and inferred stellar parameters of the three stars of this study.} %\centering \par \begin{tabular}{l l r r r r r r} \hline\hline\noalign{\smallskip} \multicolumn{2}{l}{Parameter} & & HD~125612 & & HD~215497 & & HIP~5158\\\hline Spectral type & & & G3V & & K3V & & K5V \\ $V$ & [mag] & & 8.31 & & 8.96 & & 10.16\\ $B-V$ & [mag] & & 0.63 & & 0.95 & & 1.08 \\ $\pi$ & [mas] & & $18.45 \pm 1.09$ & & $22.97\pm 1.25$ & & $22.32\pm 2.12$\\ $d$ & [pc] & & $54 \pm 3$ & & 44$\pm$2 & & 45$\pm$4\\ $M_V$ & [mag] & & 4.64 & & 5.76 & & 7.08 \\ $T_{{\rm eff}}$ & [K] & & $5900 \pm 18$ & & $5113 \pm 93$ & & $4962 \pm 89$ \\ log $g$ & [cgs] & & $4.41 \pm 0.05$ & & $4.31 \pm 0.17$ & & $4.37 \pm 0.20$\\ ${\rm [Fe/H]}$ & [dex] & & $0.23 \pm 0.014$ & & $0.23 \pm 0.07$ & & $0.10 \pm 0.07$\\ $L$ & [$L_{\odot}$] & & 1.09 & & 0.39 & & 0.11 \\ $M_*$ & [$M_{\odot}$] & & $1.091 \pm 0.027$ & &$ 0.872\pm 0.023$ & & $0.780\pm 0.021$ \\ $v\sin{i}$ & [km s$^{-1}$] & & 3.11 & & 1.67 & &1.57 \\ $\log R'_{{\rm HK}}$ & & & $-4.83 \pm 0.14$ & & $-5.01 \pm 0.06$ & & $-4.80 \pm 0.07$ \\ $P_{{\rm rot}}$($\log R'_{{\rm HK}}$) & [days] & & 21.2 & & 49.7 & & 42.3 \\ age & [Gyr] & & ${<}3$ & & ${<}7$ & & ${<}6$\\ %age(model/$\log R'_{{\rm HK}}$) & [Gyr] & & $< 1$\\ \hline \end{tabular} \end{table}