\begin{table}%T4
\caption{Structural parameters for the best fitting model.}\label{tab4}
%\centering
\par
\small
\begin{tabular}{cc}
\hline \hline
Stellar mass & $M_{\star} = 0.638$ ($\pm $0.007) $M_{\odot}$ \\ Temperature & $T_{\rm eff}$ = 12~280 ($\pm $80) K \\  H-layer mass & $M(\rm H) = 1.70$ ($\pm $0.10)$~\times ~10^{-4}~M_{\star}$ \\  He-layer mass & $M({\rm He}) = 10^{-2}~M_{\star}$ \\  Luminosity & $L = 0.00461~ L_{\odot}$ \\ Stellar radius & $R = 0.01531 ~R_{\odot}$ \\ \hline 
\end{tabular}
\end{table}