\begin{table}%t1
%\centering
\par
\caption{\label{basic_param}The coordinates, the distances and the bolometric luminosities of the sources of the sample.}
\begin{tabular}{llllll}
\hline\hline\noalign{\smallskip}
Source & CB3  & Cep E       & IC1396 N    & NGC7129     & Serpens     \\ 
& mm & mm   & BIMA 2      & FIRS 2      & FIRS~1      \\
\hline 
RA (2000)      & 00:28:42.1  & 23:03:12.7  & 21:40:41.8  & 21:43:01.5  & 18:29:49.8  \\  
Dec (2000)          & 56:41:59.4  & 61:42:27.4  & 58:16:13.5  & 66:03:25.0  & 01:15:18.4  \\  
Distance (pc)        & 2500   & 730 & 750 & 1250 & 230 \\
Luminosity ($L_{\odot}$) & 1000   & 100 & 150 & 500 & 33\\
\hline 
\end{tabular}
\end{table}