\begin{table}% [!ht]%t5 
%\centering
\par
\caption{\label{tab5}Line strengths, sky line blends, emission line blends (H$\beta$ =
100).}
\vspace*{-2mm}
%%\begin{center}
\small
\begin{tabular}{lrrccccl} 
\hline
\hline\noalign{\smallskip}
& $n$ & P$n$ & $I$(P$n$)/H$\beta$ & Blend (sky)\tablefootmark{a} & H$n$ & $I$(H$n$)/H$\beta$ 
& Blend\tablefootmark{b} \\
& &  &  & OH~($ v'$--$ v''$) &        &  \\
\hline
& 6 & 10~938 & 9   &  & 4101 & 26 &  \\
& 7 & 10~049 & 5.5 &  & 3970 & 16 &  \\
& 8 &  9545 & 3.5 &  & 3889 & 10 & He~I 3889 (15.0)* \\
& 9 &  9229 & 2.5 &  & 3835 & 7  & He~I 3834 (0.06)\\
&10 &  9015 & 1.8 &  & 3798 & 5  & [SIII]~3799 (5.4)*\\
&11 &  8863 & 1.4 & 8867(7--3) & 3770 & 4 & He~I~3769 (0.02)\\
&12 &  8750 & 1.1 &            & 3750 & 3 & O~II~3749 (0.12) \\
&13 &  8665 & 0.8 &            & 3734 & 2.5 & He~I~3733 (0.05) \\
&14 &  8598 & 0.7 & 8597(6--2) & 3721 & 2 & [OII]~3726,3729 (56)* \\
&   &       &     &            &      &   & [SIII]~3721 \\
&15 &  8545 & 0.5 & 8549(6--2) & 3712 & 1.5 & O~II 3713 (0.03), Ne~II 3713
(0.05)    \\
&16 &  8502 & 0.45 & 8505(6--2) & 3703 & 1.3 & He~I 3705 (0.7)* \\
&17 &  8467 & 0.4 & 8465(6--2) & 3697 & 1.1 & \\
&18 &  8438 & 0.3 &            & 3691 & 1.0 & \\
&19 &  8413 & 0.3 & 8415(6--2) & 3686 & 0.8 & \\
&20 &  8392 & 0.25 &           & 3683 & 0.7 & \\
\hline    
 \end{tabular}
 \vspace*{-1.5mm}
\tablefoot{
\tablefoottext{a}{%
  From Osterbrock $\&$ Martel (\cite{Osterbrock1992}).}
\tablefoottext{b}{%
  Nebular emission line, strong line: *; 
 in brackets: line strength in the Orion nebula (Esteban et~al. \cite{Esteban2004}).}}
 \vspace*{4mm}
\end{table}