\begin{table}%t5
\begin{minipage}{180mm}
\caption{\label{result} Reddening-corrected H$\beta$ luminosity and 
results from dereddened line ratios of the nuclear spectra.}
%\centering
\small\def\footnoterule{}
\begin{tabular}{lcccccc}
\hline
\hline
& \rm{\object{IC~5063}} & \rm{\object{NGC~7212}} & \rm{\object{ESO~362-G008}}&  \rm{\object{NGC~3281}} & \rm{\object{NGC~5643}} &  \rm{\object{NGC~1386}} \\ 
\hline \noalign{\smallskip}
$F_{\rm H\beta}$ (10$^{-14}$~erg~s$^{-1}$~cm$^{-2}$) & 54 $\pm$ 1 & 12 $\pm$ 0.5 & 11.5 $\pm$ 2 & 36 $\pm$ 1 & 10 $\pm$ 0.5 & 99 $\pm$ 7\\
$L_{\rm H\beta}$ (10$^{39}$~erg~s$^{-1}$) & \hspace{-2mm}140 $\pm$ 3     & \hspace{-2mm}169 $\pm$ 5         & 65 $\pm$ 9&  \hspace{-5.5mm} 107 $\pm$ 4  & 4.8 $\pm$ 0.3     & \hspace{-5mm}14.2 $\pm$ 1       \\
$T_{\rm e, obs}$ (K)                                     & 13865 $\pm$ 1800             & 14635 $\pm$ 1500                 & \hspace{+4mm}--\footnote{Underlying absorption lines.}&  \hspace{-4mm}13715 $\pm$ 440 & \hspace{+2mm}--\footnote{Not covered by wavelength range.} & \hspace{-2mm}15650 $\pm$ 1500    \\
$E_{B - V}$ (mag)\footnote{Note that this central value is not necessarily representative for the reddening within the NLR; for more details on reddening see Table~\ref{reddening}.}                           & \hspace{+2mm}0.8 $\pm$ 0.01 & \hspace{+2mm}0.3 $\pm$ 0.01     & \hspace{+2mm}0.66 $\pm$ 0.05&  0.44 $\pm$ 0.01              & 0.65 $\pm$ 0.02 & 0.43 $\pm$ 0.02         \\
$n_{\rm e, obs}$ (cm$^{-3}$)                     & 635 $\pm$ 30                 & \hspace{-0.5mm}1420 $\pm$ 50\footnote{[\ion{S}{ii}]~$\lambda$6716~\AA~is slightly truncated by telluric absorption bands.} & \hspace{+2mm}1420 (1710) $\pm$ 70\footnote{Using $T_{\rm e}$ = 10~000~K and, in brackets, $\langle T_{\rm e}\rangle_{\rm 4 Sy2s}$ $\sim$
14~465, respectively.}&  \hspace{-2mm}540 $\pm$ 40    & 860 (1035) $\pm$ 30$^e$& \hspace{-4mm}1545 $\pm$ 50  \\
$U_{\rm log~(n_{\rm e}) = 3, obs}$ (10$^{-3}$)         & \hspace{+2mm}2.15 $\pm$ 0.01 & \hspace{+2mm}3.27 $\pm$ 0.02     & 2.76 $\pm$ 0.1&  \hspace{+2mm}2.3 $\pm$ 0.02  & \hspace{+2mm} --$^b$ & 2.83 $\pm$ 0.01    \\ 
\hline 
\end{tabular} 
\end{minipage}
\end{table}