\begin{table}%t3
\caption{Measured interstellar polarization parameters of the field stars and estimated foreground polarization toward \object{RY Tauri}.}
 \label{tbl:obs_rytauisp}
 \small
%\centering
\par
\begin{tabular}{ccccccc}
 \hline\hline
   Object & Parallax& Distance &  $p_{\rm max}$ &  $\lambda_{\rm max}$ & $\theta_{5500}$ &  $\theta'$\\
          & [mas] & [pc]     & [\%] & $[{\rm \AA}]$&[deg] & $[ 10^{-3 }\ {\rm deg\ \AA^{-1}}]$\\
 \hline
    \object{HIP 20728} & $7.45 \pm 1.48$ & $134.2\pm26.7$  & $0.44 \pm 0.02$ & $4735 \pm 573$  & $167.9 \pm  0.9$ & $ -1.2\pm 0.9$ \\
   \object{HIP 20250} &  $9.53 \pm 0.92$& $104.9\pm 10.1$ & $0.13 \pm 0.01$ & $5082 \pm 789$  & $ 3.8 \pm  1.8$ & $ -1.7\pm 1.2$ \\
       \object{HIP 20262}& $4.91 \pm 1.06$& $203.7\pm 44.0$ & $1.30 \pm 0.01$ & $5250 \pm 173$  & $  4.4 \pm  0.2$ & $ -2.2\pm 0.2$ \\
      \object{HIP 20324} & $4.62 \pm 0.97$& $216.5\pm 45.4$ & $2.93 \pm 0.01$ & $5752 \pm 35$   & $ 14.2 \pm  0.0$ & $ 0.1\pm 0.0$\\
     \object{HIP 20663} & $4.77 \pm 1.07$ & $209.6\pm 47.0$ & $0.95 \pm 0.01$ & $5301 \pm 1099$ & $ 19.8 \pm  0.2$ & $-0.2\pm 0.1$\\
 \hline
  \object{RY Tauri} (\object{HIP 20387}) Foreground & $7.49\pm 2.18$ & $139^{+10}_{-9}~^{a}$ & $0.73 \pm 0.36$ & $5244 \pm 373$  & $  6.0 \pm 12.0$ & $ -1.0\pm 1.0$ \\
 \hline
\end{tabular}
\begin{list}{}{}
 \item[$^{a}$] Distance to Taurus-Auriga complex by Bertout et~al. (1999).
\end{list}
\par
\end{table}