\begin{table}%t3
%\centering
\par
\caption{\label{doublerror}Parallaxes of two binary systems.}
\begin{tabular}{rrcr}
\hline \hline\noalign{\smallskip}  
Target  & $\omega $ mas~~~~ & $V$ & $V-I$ \\
\noalign{\smallskip} \hline \noalign{\smallskip}  
1840$-$111  &$34.9 \pm 5.1$& 14.18  &  0.38 \\
Companion   &$37.9 \pm 4.0$& 15.14  &  3.23 \\
1716$+$020  &$19.0 \pm 2.3$& 14.30  & --0.02 \\
Companion   &$21.6 \pm 1.3$& 14.28  &  2.93 \\
 \hline  
\end{tabular}
\end{table}