\begin{table}%t2
\caption{\label{tab:opc}Physical data of the open clusters adopted from the literature or 
calculated in this work (see text).} 
%\centering
\par
\begin{tabular}{ccccccccccc}
\noalign{\smallskip}
\hline\hline
\noalign{\smallskip}
Cluster & ($m-M$) & $E(B-V)$ & $E(b-y)$ & Age & Distance & [Fe/H] & $M_{\rm
  blue\ TO}$ & $M_{\rm red\ TO}$ & $M_{\rm clump}$ & $R_{\rm GC}$ \\
 & (mag) & (mag) & (mag) & (log yrs) & (pc) & &  ($M_{\odot}$) &
 ($M_{\odot}$) & ($M_{\odot}$) & (kpc) \\
\hline
IC 2714 & 11.50 & 0.33 & -- & 8.60 & 1246 & +0.12 & 2.55 & 2.85 &
2.91 & 8.34 \\
IC 4756 &  9.00 & 0.20 & -- & 8.85 &  474 & +0.04 & 2.08 & 2.31 &
2.37 & 7.23 \\
NGC 2360 & 10.40 & 0.07 & -- & 9.06 & 1086 & +0.04 & 1.78 & 1.98 &
2.02 & 6.32 \\
NGC 2447 & 10.25 & 0.04 & -- & 8.65 & 1057 & $-$0.01 & 2.44 & 2.74 &
2.79 & 6.51 \\
NGC 3532 & 8.50 & 0.04 & -- & 8.55 &  473 & +0.04 & 2.67 & 2.96 &
3.03 & 7.87 \\
NGC 3680 & 10.07 & 0.07 & -- & 9.25 & 935 & +0.04 & 1.46 & 1.70 &
1.74 & 7.45 \\
NGC 5822 & 9.65 & 0.14 & -- & 8.95 & 697 & +0.04 & 1.89 & 2.14 &
2.19 & 8.10 \\
NGC 6134 & -- & -- & 0.263 & 8.85 & 1410 & +0.12 & 2.08 & 2.31 & 2.37 & 7.52 \\
NGC 6281 & 8.95 & 0.13 & --  & 8.50 & 512 & +0.05 & 2.78 & 3.09 & 3.18 & 8.47 \\
NGC 6633 & 8.50 & 0.18 & --  & 8.65 & 388 & +0.08 & 2.44 & 2.74 & 2.79 & 8.42 \\
\hline
\end{tabular}
\end{table}