\begin{table}%t1
\caption{\label{tab:param}Some physical parameters of N66A.}
%%\centerline

{\small
\begin{tabular}{c c c c c c c c} 
\hline\hline\noalign{\smallskip}
$\theta$ & $r$  & $I$(\hb ){$^\dag $}        & {\it Te}    & {\it Ne}   & $\langle n_{\rm e}\rangle$  
&  $M_{\rm gas}$  & $N_{L}$ \\
(\frac~) & (pc) & erg s$^{-1}$ cm$^{-2}$   & (K) & cm$^{-3}$ & cm$^{-3}$ & (\sm ) & ph s$^{-1}$ \\
         &      & \x~10$^{-12}$ &      &      &      &        &  \x~10$^{48}$ \\
\hline
    5    &    1.5    &     3.6         &    12~770     &  220    &  200    &    90      & 3.4 \\
\hline 
\end{tabular}}
\tablefoot{{$\dag$} {Using a reddening coefficient {\it c}(\hb ) = 0.26.}}
\end{table}