\begin{table}%t11
%\centering
\par
\caption{Ratio of the \pronaos to \dirbe
average brightnesses on extended sources.  The average value is
weighted using 1/$\sigma^2$.}
\label{tab_dirbe_extended} 
\begin{tabular}{lcc} 
\hline 
\hline
$\lambda$ [$\mic$] & 200 & 260 \\
\hline 
M~42             & 0.92~$\pm$~0.06 & 0.96~$\pm$~0.06\\
M~17             & 0.90~$\pm$~0.08 & 0.91~$\pm$~0.09\\
$\rho$-Ophiuchi & 0.97~$\pm$~0.07 & 0.98~$\pm$~0.07\\
CygnusB         & 1.03~$\pm$~0.07 & 1.02~$\pm$~0.08\\
\hline 
Average         & 0.95~$\pm$~0.07 & 0.97~$\pm$~0.07 \\
\hline 
\end{tabular}  
\end{table}