\begin{table}%t6
\caption{\label{met_disp}Metallicity dispersion for each cluster.}
\small
%\centering
\par
\begin{tabular} {l c c c c c c c }
\hline
\hline
Cluster ID & &  & G78  &  & G213 &  & G280  \\
\hline
$\sigma_{[\rm Fe/H]}$ & & & 0.9419      & & 0.8955      & & 1.0337  \\
error             & & & $\pm$0.3824 & & $\pm$0.1979 & & $\pm$0.2587 \\
 & &  &   &  &  &  &   \\
$\sigma_{[\rm Fe/H]} /\rm  [Fe/H]$ & & & 1.0238      & & 0.8292      & & 1.4767  \\
error                      & & & $\pm$0.4157 & & $\pm$0.1832 & & $\pm$0.3695 \\
\hline
\end{tabular}
\end{table}