\begin{table}%t1
\caption{Line parameters.}
%\centerline
{\begin{tabular}{llllll}\hline\hline\noalign{\smallskip}
Nr. & Ion  & $\lambda^1$& Exct. & log($gf$) & Transition\\
& & [nm] & pot. [eV] & &\\\hline\noalign{\smallskip}
1 & \ion{Cr}~I  & 396.36900  &    2.544 &  0.66 & 5G 6.0--5H 7.0  \\ 
2& \ion{Ti}~I   & 396.42700  & 0.021  &$-1.18$   &3F 3.0--3F 4.0  \\
3& \ion{Fe}~I   & 396.45530  &   2.839 & $-1.55$ &  3P 1.0--5P 2.0 \\
4& \ion{Fe}~I   & 396.55088  &  3.241  &$-1.778$ & 5D 3.0--5D 4.0 \\
$-$ & \ion{Fe}~I   & 396.59152  &    2.425&  $-3.550$&  3P 1.0--5D 1.0 \\
5 & \ion{Fe}~I   & 396.60617 &   1.605 & $-1.64$  & 3F 2.0--3D 3.0 \\
$-$ & \ion{Fe}~II  & 396.64260  &  1.724 & $-5.525$  &4P 0.5--6D 0.5  \\
6 & \ion{Fe}~I   & 396.66300 &   3.212 & $-0.360$ & 5D 4.0--5F 5.0  \\
$-$ & \ion{Fe}~I   & 396.68100 &   3.301 & $-1.949$ & 3D 2.0--3G 3.0  \\
7 & \ion{Fe}~I   & 396.74206  &   3.295 & $-0.41$  & 3H 4.0--1G 3.0  \\
$-$ & \ion{Fe}~I   & 396.79614  &  3.235  &$-0.87$  & 5D 3.0--3G 4.0  \\
8 & \ion{Ca}~II & 396.84900 &   0.000 & $-0.166$&  2S 0.5--2P 0.5 \\ 
9& \ion{Fe}~I & 396.93000  &  1.485  & $-0.42$  &3F 4.0--3F 3.0  \\\hline\noalign{\smallskip}
$-$&\ion{Fe}~I & 630.15012   &  3.654 & $-0.75$ &  5P 2.0--5D 2.0  \\
$-$&\ion{Fe}~I & 630.24936  &  3.686  &$-1.236$ & 5P 1.0--5D 0.0  \\\hline
\end{tabular}}
\medskip
\par
1: Wavelengths partly courtesy of J. Bruls, KIS (personal note), partly collected from the NIST Atomic Spectra Database \citep{martin+etal1998,reader+etal2002} and \citet{nave+etal1994}.
\end{table}