\begin{table}%t2
\caption{Studied subsample of Hickson Compact Groups$^\dag$.}\label{tab:hcg}
\small%\centerline
{
\begin{tabular}{c c c c c}
\hline \hline
HCG & RA (\degr) & Dec (\degr) & Major axis & Velocity\\
number & (J2000) & (J2000) & (\arcm) & (\kms)\\
\hline
 1 & 6.529708 & 25.725194 & 1.25 & 10237\\
 8 & 12.392292 & 23.578250 & 0.9 & 16077\\
10 & 21.590750 & 34.703028 & 3.0 & 5189\\
15 & 31.971167 & 2.167611 & 1.1 & 6967\\
17 & 33.52135 & 13.31104 & 0.36 & 18228\\
$\vdots$ & $\vdots$ & $\vdots$ & $\vdots$ & $\vdots$ \\
\hline
\end{tabular}}

$^\dag$ The full table is available in electronic form at CDS.
\end{table}