\begin{table}%T4
\caption{\label{mag_col_int}Magnitude and color values for the boundaries of the intervals considered to fit the RGB of each cluster.}
\small
%\centering
\par
\begin{tabular} {l c c c c}
\hline\hline
Cluster & lower~mag & upper~mag & lower color & upper color   \\
\hline
G78     &  $-$2.2     &  0.685      &  none       &     0.8       \\
G213    &  $-$2.2     &  0.685      &  $-$0.7       &     0.5       \\
G280    &  $-$1.8     &  0.685      &  none       &     0.6       \\
\hline
\end{tabular}
\end{table}