\begin{table}%t4
\caption{\label{table04}Dispersion of proper motions for each open cluster studied.}
%\centerline
 {\small \begin{tabular}{lrrrr}
\hline \hline
Cluster  &  $N_{*{\rm s}}$ & $\sigma_{\mu_{\alpha}\cos\delta}$
&  $\sigma_{\delta}$  & $V_{\rm range}$\\
\hline
\noalign{\smallskip}
 ALESSI 21 &      59  &  2.4 & 2.6  &   9.8--12.6\\
 ASCC 24   &      13  &  2.1&  3.4  &   7.5--11.7 \\
 ASCC 27   &      13  &  2.6&  2.1  &   8.8--12.1\\
 ASCC 30   &      33  &  1.5&  1.8  &   8.9--12.2\\
 BOCHUM 3  &       5  &  1.5&  0.7  &  11.9--13.7\\
 NGC 2184  &       8  &  2.6&  2.1  &   9.6--12.2 \\
 NGC 2215  &       9  &  0.8&  0.9  &  10.6--12.9\\
 NGC 2232  &       9  &  1.2&  2.3  &   7.8--10.6\\
 NGC 2286  &      31  &  2.4&  2.0  &   9.7--14.3\\
 NGC 2302  &      20  &  0.8&  2.1  &  10.8--12.5\\
 NGC 2306  &      11  &  1.4&  2.3  &  10.1--12.5\\
 NGC 2311  &      14  &  1.4&  1.4  &  10.2--12.6 \\
 NGC 2323  &     126  &  1.1&  1.3  &   8.9--13.6 \\
 NGC 2335  &       8  &  2.1&  1.1  &  10.7--12.7 \\
 NGC 2548  &      86  &  1.1&  1.4  &   8.5--15.6\\
\hline
\end{tabular}}
\medskip
Number of stars and magnitude range is also given.
\end{table}