\begin{table}%t1
\caption {\label{table1}Magnitudes of the observed objects: The labels fs, bg, c indicate
respectively: ``foreground star'', ``backgroung galaxy'', ``condensation''. The typical rms errors 
for the magnitudes are 0.1~mag.}
%\centering
 % used for centering table
\begin{tabular}{c c c c c c} % centered columns (4 columns)
\hline\hline 
\noalign{\smallskip}
Obj. ID & RA & Dec $(J2000)$ & $m_{v}$ (mag) & Type \\ % table heading
\hline % inserts single horizontal line
1  & 02:47:00 & --30:13:04 & 21.3 & fs\\ 
2  & 02:47:01 & --30:12:59 & 19.9 & bg\\
3  & 02:46:59 & --30:11:55 & 21.4 & fs\\
4  & 02:47:01 & --30:11:48 & 21.2 & bg\\
5(knot A)  & 02:47:00 &  --30:10:08 & 19.9 & c\\
6  & 02:47:04 & --30:09:30 &  20.0 & bg\\
7  & 02:47:04 & --30:09:22 &  21.5 & bg\\
8(knot. B)  & 02:47:05 & --30:09:07 &  20.4 & c\\
9  & 02:47:07 & --30:08:38 & 22.1 & fs\\
10  & 02:47:12 & --30:06:58  & 23.4 & bg\\
11  & 02:47:11 & --30:06:57  & 23.6 & bg\\
\hline  
\end{tabular}
\end{table}