\begin{table}%t1
%\centering
\par
\caption {General cluster properties. Column~(1): cluster name; Col.~(2): right ascension; Col.~(3): declination; Col.~(4): redshift; Col.~(5): luminosity distance; Col.~(6): hydrogen column density \citep{DL}; Col.~(7): X-ray emission mean temperature derived in this work; see Sect.~\ref{tempmod}; Col.~(8): $r_{500}$ values were derived in this work.\label{generalinfo}}
\begin{tabular}{cccccccc}
\hline\hline
 Cluster & RA & Dec & ${\it z}$ & $d_{\rm L}$ &$n$H & $\langle kT\rangle$ & $r_{500}$ \\
         & (J2000) & (J2000)& & ($h_{\rm 70}^{-1}$ Mpc) & $(10^{20}~\rm  cm^{-2})$ &  (keV) & ($h_{\rm 70}^{-1}$~kpc)\\
\hline\noalign{\smallskip}
%A267  & 01 52 52.2 & 01 02 46  & 0.231  & 1152.22 & 3.46 &  & \\
A496  & 04 33 37.1 & --13 14 46 & 0.033  & 144.902 & 4.45 &  3.96 $\pm$ 0.023 & 1480 \\  
A1689 & 13 11 34.2 & --01 21 56 & 0.1823 & 888.870 & 1.84 &  8.34 $\pm$ 0.32 & 2172\\
A2050 & 15 16 21.6 & +00 05 59 & 0.1183 & 551.167 & 4.67 &  5.85 $\pm$ 0.11 & 1785   \\
A2631 & 23 37 39.7 & +00 17 37 & 0.273  & 1393.23 & 3.82 &  6.89 $\pm$ 0.34  & 2153    \\
A2667 & 23 51 47.1 & --26 00 18 & 0.23   & 1146.59 & 1.64 &  6.56 $\pm$ 0.13  & 1976\\
\hline	  
\end{tabular}
\end{table}