\begin{table}%t4
\caption{\label{tab:summary}Summary data for 8 clusters within 250~pc.}
%\centerline
 {
\small \begin{tabular}{lrrrrrrrrrr}
\hline\hline
Cluster & $\alpha,\delta$ & Diam. & $\log({\rm Age})$ &  $V_{\rm R}$ & $\mu_{\alpha,*}$ & $\mu_\delta$ & $\varpi$ & DM & Dist. & Std\\
& degr. & Stars & ${E(B-V)}$ & (km~s$^{-1}$) & \multicolumn{2}{c}{(mas~yr$^{-1}$)} & (mas) & & (pc) & Rej. \\ 
\hline
Coma~Ber & $186.0$ & 7\fdg5 & 8.78 & $-1.2$ & $-11.75$ & $-8.69$ & 11.53 & 4.69 & 86.7 & 0.87 \\
C1222+263 & $26.0$ & 27 &  0.00 &  & $\pm$0.27 & $\pm$0.25 & $\pm$0.12 & $\pm$0.02 & $\pm$0.9 & 0 \\
%& & & & & & & & & &\\
Pleiades & $56.5$ & 8\fdg6 &  8.08 & 5.7 & $20.10$ & $-45.39$ & 8.32 & 5.40 & 120.2 & 1.45 \\
C0344+239 & $24.1$ & 53 & 0.04 &  & $\pm$0.28 & $\pm$0.27 & $\pm$0.13 & $\pm$0.03 & $\pm$1.9 & 0 \\
%& & & & & & & & & &\\
Praesepe & $130.0$ & 4\fdg5 & 8.90 &  $33.6$ & $-35.81$ & $-12.85$ & 5.49 & 6.30 & 181.5 & 1.29 \\
C0937+201 & $19.7$ & 24 & 0.01 & & $\pm$0.29 & $\pm$0.24 & $\pm$0.18 & $\pm$0.07 & $\pm$6.0 & 0 \\
%& & & & & & & & & &\\
$\alpha$~Per & $52.5$ & 8\fdg0 & 7.55 & $-1.6$ & 22.73 & $-26.51$ & 5.80 & 6.18 & 172.4 & 1.28 \\
C0318+484 & $49.0$ & 50 & 0.09 &  & $\pm$0.17 & $\pm$0.17 & $\pm$0.09 & $\pm$0.03 & $\pm$2.7 & 0 \\
%& & & & & & & & & &\\
IC~2391 & $130.0$ & 2\fdg0 & 7.88 & 19.0 & $-24.69$ & 22.96 & 6.90 & 5.80 & 144.9 & 1.12 \\
C0838-528 & $-53.1$ & 11 & 0.01 &  & $\pm$0.32 & $\pm$0.31 & $\pm$0.12 & $\pm$0.04 & $\pm$2.5 & 0 \\
%& & & & & & & & & &\\
IC~2602 & $160.2$ & 2\fdg9 & 7.83 & 16.0 & $-17.02$ & 11.15 & 6.73 & 5.86 & 148.6 & 0.99 \\ 
C1041-641 & $-64.4$ & 15 & 0.03 &  & $\pm$0.24 & $\pm$0.23 & $\pm$0.09 & $\pm$0.03 & $\pm$2.0 & 0 \\
%& & & & & & & & & &\\ 
Blanco~1 & $1.1$ & 2\fdg5 & 8.32 &  3.5 & 20.11 & 2.43 & 4.83 & 6.58 & 207.0 & 1.24 \\
C0001-302 & $-30.1$ & 13 &  0.01 & & $\pm$0.35 & $\pm$0.25 & $\pm$0.27 & $\pm$0.12 & $\pm$12.0 & 0 \\
%& & & & & & & & & &\\
NGC~2451 & $115.3$ & 2\fdg0 & 7.76 & 21.7 & $-21.41$ & 15.61 & 5.45 & 6.32 & 183.5 & 1.42 \\ 
C0743-378 & $-38.5$ & 14 & 0.00 &  & $\pm$0.28 & $\pm$0.29 & $\pm$0.11 & $\pm$0.04 & $\pm$3.7 & 0 \\
\hline
\end{tabular}}
\medskip
The first column identifies the cluster;  Cols.~2 to~4 provide external input data, such as reddening, radial velocity, position on the sky;  Cols.~5 to~7 provide the data obtained in the current study for the astrometric parameters of each cluster;  Cols.~8 and~9 provide the derived parameters of the distance and distance modulus;  Col.~10 gives the solution statistics, the unit-weight standard deviation of the residuals and the percentage of rejected observations. There are always three observations per star.
\end{table}