\begin{table}%t2
\caption{Spectral lines that display similar behaviour to
         \ion{Fe}{i}~6141.7~\AA\ and \ion{Si}{i}~6155.1~\AA\ in the
         temperature range from 3750~K to 5250~K and that have previously
         been used for Doppler imaging.}
\label{tab:lines}
%\centering
\par
\begin{tabular}{lll}
\hline  \hline
\ion{Ti}{i}~5866.4~\AA&\ion{Fe}{i}~6180.2~\AA&\ion{Li}{i}~6707.9~\AA\\
\ion{Ca}{i}~6102.8~\AA&\ion{V}{i}~6199.2~\AA&\ion{Ca}{i}~6717.7~\AA\\
\ion{Ni}{i}~6108.1~\AA&\ion{Fe}{i}~6430.9~\AA&\ion{Ti}{i}~6743.1~\AA\\
\ion{Ca}{i}~6122.2~\AA&\ion{Ca}{i}~6439.1~\AA&\ion{Ca}{i}~7148.2~\AA\\
\ion{Fe}{i}~6151.6~\AA&\ion{Fe}{i}~6546.2~\AA&\ion{K}{i}~7699.0~\AA\\
\ion{Ca}{i}~6166.4~\AA&\ion{Ni}{i}~6643.6~\AA&\ion{Ti}{i}~8412.4~\AA\\
\ion{Fe}{i}~6173.3~\AA&& \\
\hline
\end{tabular}
\end{table}