\begin{table}%t3
  %\centering
\par
  \caption{Properties of the WDS~19312+3607 system.}
  \label{data.AB}
  \begin{tabular}{@{} lcl @{}}
  \hline
  \hline
            \noalign{\smallskip}
Quantity 			& Value 		& Unit		\\
            \noalign{\smallskip}
            \hline
            \noalign{\smallskip}
${\rho}$    			& $45.83\pm0.17$	& arcsec	\\
 				& $0.764\pm0.003$	& arcmin	\\
${\theta}$ 			& $347.5\pm0.4$		& deg		\\
$d$				& 26$^{+12}_{-7}$	& pc		\\
${\mu_\alpha \cos{\delta}}$	& $-116.3\pm2.0$	& mas~a$^{-1}$	\\
${\mu_\delta}$			& $-100.6\pm1.2$	& mas~a$^{-1}$	\\
$V_r$ 		   		& $-26\pm2$		& km~s$^{-1}$	\\
$U$ 		   		& $+7\pm8$		& km~s$^{-1}$	\\
$V$ 		   		& $-31\pm4$		& km~s$^{-1}$	\\
$W$ 		   		& $+3\pm4$		& km~s$^{-1}$	\\
$s$    				& 1200$^{+600}_{-300}$ 	& AU		\\
$\tau$    			& 0.6--5  		& 10$^{9}$~a	\\
${\mathcal M}_{\rm total}$ 	& $0.54\pm0.09$ 	& $M_\odot$	\\
$U_{\rm g}$    			& $-10\pm3$		& 10$^{34}$~J	\\
$P$    				& 57  			& 10$^{3}$~a	\\
            \noalign{\smallskip}
  \hline
\end{tabular}
\end{table}