\begin{table}%t2
\caption{Measurement of the {\it EW} of strong absorption lines (without 
obvious variability and presumably photospheric) in the spectrum of~\object{BD~$+53\degr$2790}.}
\label{tab:ews}
%\centering
\par
\begin{tabular}{lc}
\hline\hline
Line & {\it EW} (\AA)\\
\hline
\ion{He}{ii}~$\lambda$4200~\AA & 0.4\\
H$\gamma$ & 2.2\\
\ion{He}{i}~$\lambda$4471~\AA & 1.3\\
\ion{He}{ii}~$\lambda$4541~\AA & 0.4\\
\ion{He}{i}~$\lambda$4713~\AA & 0.5\\
\ion{He}{i}~$\lambda$4923~\AA & 0.7\\
\hline
\end{tabular}
\end{table}