\begin{table}%t1
\caption{\label{tab1}Observed positions in the Galactic Centre \sgra\ region.}
%\centering
\par
\begin{tabular}{lll}
\hline\hline\noalign{\smallskip}
      &  $\alpha$(1950.0)      &   $\delta$(1950.0) \\
\noalign{\smallskip}\hline\noalign{\smallskip}
\sgrastar\  Circumnuclear Disk & 17$^{\rm h}$42$^{\rm m}$29\fs3  &  $-28\degr$$59'$18\as \\
\sgra\  +20 \kms\  cloud  & 17$^{\rm h}$42$^{\rm m}$29\fs3
&  $-29\degr$$02'$18\as \\
\sgra\  +50 \kms\  cloud  & 17$^{\rm h}$42$^{\rm m}$41\fs0
&  $-28\degr$$58'$00\as \\
\noalign{\smallskip}\hline\end{tabular}
\end{table}