\begin{table}%t2
\caption{\label{prop}Summary of physical parameters of ULAS~0034.}
\small%\centering
\par
\begin{tabular}{ll}
\hline  \hline  \smallskip
 Distance (pc)     &    12.6 $\pm$ 0.6    \\
 $U$, $V$, $W$    (km~s$^{-1}$)      &    $23 \pm 3$, $-8 \pm 6$, $-9 \pm 13$ \\
 $T_{\rm eff}$ (K)  &   550--600 \\
 $\log g$       &  4.5 \\
 Mass ($M_{\rm J}$  )         & 13--20  \\
 Age  (Gyr)         & 1--2 \\
\hline 
\end{tabular}
\vspace*{2mm}
\end{table}