\begin{table}%t1
%\centering
\par
\caption{Properties of the lensed quasar sample. Column 1: quasar name. Columns~2, 3: right ascension and declination of quasar image A (J2000). Column 4: quasar redshift. Column~5: lensing galaxy redshift, where "?'' means "unknown'' and  "(p)'' means "photometric redshift''.  
Column~6: size of the system corresponding to the maximal angular separation between the quasar images (in arcsecond). Column~7: system configuration. Column~8: predicted value of the external shear strength and position angle of the shear $^1$ Leh\'ar et~al. (2002), $^2$ 
Saha \& Williams (\cite{Saha03}), $^3$ Lopez et~al. (\cite{Lopez98}), $^4$ Rusin et~al. (\cite{Rusin01}). The symbol "-'' means that the system has never been modeled.     \label{castles}}
\begin{tabular}{clllllll c}
\hline\hline
Quasar & RA & Dec & $z_{\rm qso}$ & $z_{\rm lens}$ & Size &  Configuration & Ext. shear and & PA(deg) \\
\par
\hline
\ctq &01$^{\rm h}$58$^{\rm m}$41.43$^{\rm s}$ & --43$^\circ$25\arcmin3.4\arcsec  &1.29 & ? &1.22\arcsec  &double &-- & \\
\hezero&02$^{\rm h}$32$^{\rm m}$33.1$^{\rm s}$&--21$^\circ$17\arcmin26\arcsec& 2.16 & $\leq$1.6 &2.10\arcsec   & quadruple&-- &\\
\lbqs & 10$^{\rm h}$12$^{\rm m}$15.71$^{\rm s}$&--03$^\circ$07\arcmin02\arcsec&2.74&0.88(p)&1.54\arcsec & double& 0.053$^1$& --36  \\
\bdix & 10$^{\rm h}$33$^{\rm m}$34.08$^{\rm s}$ &+07$^\circ$11\arcmin25.5\arcsec&1.54 &0.599& 1.56\arcsec
 &double&0.09$^1$& --39   \\
\heonze& 11$^{\rm h}$06$^{\rm m}$33.45$^{\rm s}$ &--18$^\circ$21\arcmin24.2\arcsec &2.32 & 0.73&3.19\arcsec& double& 0.05$^1$ & --38  \\
\btreize&14$^{\rm h}$01$^{\rm m}$35.55$^{\rm s}$ & +15$^\circ$13\arcmin25.6\arcsec & 3.235 & ? &1.71\arcsec & sextuple& 0.12 to 0.26$^4$ & 71 to 97\\
\clover& 14$^{\rm h}$15$^{\rm m}$46.40$^{\rm s}$ &+11$^\circ$29\arcmin41.4\arcsec &2.55& 0.9(p) &1.10\arcsec& quadruple & 0.08$^2$ & 70\\
\hevingt&21$^{\rm h}$52$^{\rm m}$07.44$^{\rm s}$&  --27$^\circ$31\arcmin50.2\arcsec&2.03& 0.5(p)& 1.71\arcsec &double &  $>$0.21$^3$ & 58\\
\hline
\end{tabular}
\end{table}