\begin{table}%t6
\caption{The measured angular sizes of B~2005+403 at different frequencies. Column~1 shows the observing frequency, Col.~2 the observing epoch, Col.~3 the major axis size of the fitted 
Gaussian component. In Col.~4 references for previously published data are given.}\label{tab:scat}
%\centering
\par
\begin{tabular}{cccc}
\hline \hline 
$\nu {\rm  [GHz]}$ & Epoch & $\theta {\rm  [mas]}$ & Reference \\ 
\hline 
0.61 & Oct. 1986 & $225 \pm 58$ & \cite{fey} \\
1.6 & 1998.14 & $29.8 \pm 0.5$ & this paper \\
1.66 & Mar. 1986 & $26.4 \pm 4.7$ & \cite{fey} \\
1.7 & Jan. 1997 & $31 \pm 0.8$ & \cite{desai} \\
2.3 & Jan. 1997 & $17.6 \pm 0.5$ & \cite{desai} \\
4.99 & Oct. 1985 & $3.5 \pm 0.4$ & \cite{fey} \\
5 & 1996.82 & $3.5 \pm 0.1$ & this paper \\
5 & Jan. 1997 & $3.4 \pm 0.1$ & \cite{desai} \\
8 & 1996.83 & $1.6 \pm 0.1$ & this paper \\
15 & 1996.73 & $0.8 \pm 0.1$ & this paper \\
22 & 1996.73 & $0.6 \pm 0.1$ & this paper \\
43 & 1996.73 & $0.5 \pm 0.04$ & this paper \\
\hline
\end{tabular}
\end{table}