\begin{table}%T2
%\centering
\par
\caption{Results of fitting a circle to the outer edge of the light echo
         of V838~Mon. Time of observations, $t_{\rm obs}$, is in days
         since 1~January~2002. Results are in arcsec.}
\label{echo_tab}
\begin{tabular}{c c c c c}
\hline\hline
  $t_{\rm obs}$ & $\theta$ & $x_{\rm c}$ & $y_{\rm c}$ &
  $\theta_{\rm c}$\\
\hline
  120.0 & 18.55 $\pm$ 0.62 & $-$0.83 $\pm$ 0.90 & 0.46 $\pm$ 0.86 & 0.95 $\pm$ 0.88 \\
  140.0 & 20.89 $\pm$ 0.61 & $-$1.12 $\pm$ 0.88 & 0.50 $\pm$ 0.84 & 1.23 $\pm$ 0.86 \\
  245.0 & 30.32 $\pm$ 0.83 & $-$2.27 $\pm$ 1.21 & 0.37 $\pm$ 1.15 & 2.30 $\pm$ 1.18 \\
  301.0 & 33.68 $\pm$ 0.84 & $-$2.36 $\pm$ 1.23 & 1.11 $\pm$ 1.17 & 2.60 $\pm$ 1.20 \\
  351.0 & 36.66 $\pm$ 0.90 & $-$2.61 $\pm$ 1.31 & 1.58 $\pm$ 1.23 & 3.05 $\pm$ 1.27 \\
  659.0 & 52.10 $\pm$ 1.15 & $-$6.05 $\pm$ 1.65 & 3.12 $\pm$ 1.61 & 6.80 $\pm$ 1.63 \\
  769.0 & 56.67 $\pm$ 1.19 & $-$5.91 $\pm$ 1.66 & 5.37 $\pm$ 1.71 & 7.99 $\pm$ 1.69 \\
\hline
\end{tabular}
\end{table}