\begin{table}%T2
      \caption{\label{clusters}Heliocentric distances and galactic coordinates of three
      representative young open clusters.} 
         \small%\centering
\par
               \begin{tabular}{l c c c}
            \hline
            \hline
      Region  		& $d$	& $l$ 	& $b$ 		\\
			& (pc)	& (deg) & (deg) 	\\
                  \hline
      Upper Scorpius    	&  145  & 350 	&   +20 	\\
$\sigma$ Orionis    	&  385  & 207 	&  --17 	\\ 
Pleiades   		&  130  & 167 	&  --24 	\\ 
            \hline
         \end{tabular}
	   \end{table}