\begin{table}%T5
%\centering
\par
\caption
{Parameters representing the best-fit model.}
\label{tab-5}
\begin{tabular}{ll}
\hline\hline
Parameter & Value\\
\hline
\par
{\it CSPN} &\\
{\it Model atmosphere} & Rauch (\cite{rauch})\\
$T_{\rm eff}  $ &159~000 K \\
Log $g$    & 7.0 \\
Luminosity & 690 $L_{\smallsun}$\\
\\
{\it Nebula}    & \\
Const. density & $N_{\rm H} = 7.86\times 10^3 ~\rm cm^{-3}$ \\
Abundance & H     \hskip 1.0cm He    \hskip 0.9cm C    \hskip 1.0cm N \\
          & 12.000\hskip 0.3cm 11.033\hskip 0.6cm 9.283\hskip 0.4cm 8.665 \\
          & O     \hskip 1.0cm Ne    \hskip 0.9cm Mg   \hskip 0.8cm Si \\
          & 8.892 \hskip 0.4cm 8.230\hskip 0.4cm 7.541 \hskip 0.4cm 7.322\\
          & S     \hskip 1.1cm Cl    \hskip 1.0cm Ar   \hskip 0.9cm K \\
          & 7.000 \hskip 0.4cm 5.342\hskip 0.4cm 6.301 \hskip 0.4cm 5.079\\
          & Ca    \hskip 1.0cm Fe  \\
          & 4.079 \hskip 0.4cm 5.699 \\
Size      &$4\farcs3$ (diameter)\\
Distance  & 2.55~kpc\\
Inner radius & 5.00e15 cm (${\sim}0.00162$~pc) \\
Outer radius & 8.201e16 cm (${\sim}0.02658$~pc)\\
Filling factor& 1\\
\hline
\end{tabular}
\end{table}