\begin{table}%t1
\caption{Distances and positions of the dense cores observed.
\label{tab:cores0}      }
%\centerline
 {\begin{tabular}{l c c c}
\hline\hline        
\noalign{\smallskip}
Core &$d$$^a$ 
 (pc) &RA$^b$ 
  (2000) & Dec $^b$ (2000)  \\
\noalign{\smallskip}\hline                        
\noalign{\smallskip}
L1582A &400&  $05^{\rm h}\ 32^{\rm m}\ 01.0^{\rm s}$ & $+12\degr\ 30^\prime\ 23^{\prime\prime}$\\
\noalign{\smallskip}
L1689A &130& $16^{\rm h}\ 32^{\rm m}\ 13.2^{\rm s}$ & $-25\degr\ 03^\prime\ 45^{\prime\prime}$\\
\noalign{\smallskip}
B133   &200& $19^{\rm h}\ 06^{\rm m}\ 08.4^{\rm s}$ & $-06\degr\ 52^\prime\ 52^{\prime\prime}$\\
\noalign{\smallskip}
B68    &130& $17^{\rm h}\ 22^{\rm m}\ 39.2^{\rm s}$ & $-23\degr\ 50^\prime\ 01^{\prime\prime}$\\
\hline                        
\end{tabular}}
$^a$ {Distances taken from Kirk et~al. (\cite{Kirk05})};
$^b$ {peak of the 450~$\micron$ \& 850~$\micron$ emission (Kirk et~al. \cite{Kirk05}).}
\par
\end{table}