\begin{table}%t5
%\centering
\par
   \caption{\label{redshifts}Heliocentric redshifts for CL0056.03, taken from CHM98. Here,
   $v$ denotes the radial velocity in ${\rm km~s^{-1}}$ together with its measurement errors
   $\sigma_v$, and the index~$m$ indicates whether a galaxy is closer to the eastern cD galaxy 
   (${\rm ID}=6$), or to the western one (${\rm ID}=16$).}
   \scriptsize
   \begin{tabular}{lllllll}
   \hline 
   \hline 
   \noalign{\smallskip}
    ID & RA (2000.0)& DEC (2000.0)& $v$ & $\sigma_{\rm v}$ & $z$ & $m$\\
   \noalign{\smallskip}
   \hline 
   \noalign{\smallskip}
    1  &  00:56:10.23  &  --37:34:07.9  &  51570  &  282  &  0.17202  &  1 \\
    2  &  00:56:09.22  &  --37:33:59.5  &  50799  &   51  &  0.16945  &  1\\
    3  &  00:56:07.07  &  --37:33:49.4  &  51628  &  138  &  0.17221  &  1 \\
    4  &  00:56:09.71  &  --37:33:39.9  &  50709  &  120  &  0.16915  &  1 \\
    5  &  00:56:01.49  &  --37:33:31.6  &  49315  &  111  &  0.16450  &  1 \\
    6  &  00:56:06.41  &  --37:33:18.0  &  49754  &  154  &  0.16596  &  cD 1 \\
    7  &  00:55:57.50  &  --37:32:51.5  &  46839  &   38  &  0.15624  &  2 \\
    8  &  00:55:58.90  &  --37:33:00.7  &  48490  &   50  &  0.16175  &  2 \\
    9  &  00:56:02.76  &  --37:33:03.9  &  49588  &  192  &  0.16541  &  1 \\
   10  &  00:56:04.76  &  --37:33:00.3  &  50394  &  117  &  0.16810  &  1 \\
   11  &  00:56:04.75  &  --37:32:51.0  &  51594  &   84  &  0.17210  &  1 \\
   12  &  00:55:55.59  &  --37:32:20.2  &  48514  &  145  &  0.16183  &  2 \\
   13  &  00:55:56.74  &  --37:32:35.4  &  49555  &  123  &  0.16530  &  2 \\
   14  &  00:55:57.74  &  --37:32:23.4  &  48256  &  101  &  0.16096  &  2 \\
   15  &  00:55:59.32  &  --37:32:35.2  &  49041  &  145  &  0.16358  &  2 \\
   16  &  00:55:59.09  &  --37:32:18.2  &  48888  &  117  &  0.16307  &  cD 2 \\
   17  &  00:56:01.32  &  --37:32:41.9  &  50168  &  187  &  0.16734  &  2 \\
   18  &  00:56:02.45  &  --37:32:18.0  &  47381  &  138  &  0.15805  &  2 \\
   19  &  00:56:02.41  &  --37:32:05.7  &  49097  &  113  &  0.16377  &  2 \\
   20  &  00:55:56.18  &  --37:31:48.3  &  49439  &   14  &  0.16491  &  2 \\
   21  &  00:56:09.54  &  --37:31:49.0  &  49863  &  107  &  0.16633  &  1 \\
   \hline 
   \end{tabular}
   \small
\end{table}