\begin{table}%T5
\caption{\label{tab_res_num}Numerical results of the star-by-star analysis of the cluster. The
parenthesized age ranges indicate the 90\%~confidence limits.}
%\centering
\par
\begin{tabular}{cccc}
\hline\hline
 & $Z=0.004$ & Observed & $Z=0.008$ \\
\hline
$\chi_{\rm isoc}^{2}$ & 5.2 & & 2.3 \\
$W({\rm H}\beta)$ (\AA) & 602 & 330 $\pm$ 30 & 342 \\
$R_{\rm B}$ & 1.10 & 1.12 $\pm$ 0.08 & 1.10 \\
\hline
Age (Myr) & 3.7 (3.7--3.7) & & 4.2 (3.6--4.4) \\
\hline
\end{tabular}
\end{table}