\begin{table}%t6
\caption[]{\label{tab:feros}Log of the FEROS observations of V636~Cen.
}
\centerline {
\begin{tabular}{ccrr}
\hline
\hline\noalign{\smallskip}
HJD$-$2\,400\,000$^a$  & phase &$t_{\rm exp}$$^b$ & $S/N^c$\\
\noalign{\smallskip}
\hline
\noalign{\smallskip}
51210.8718         &  0.4017 & 2100 &  160   \\   %  f3682  o27 160
51211.8484         &  0.6296 & 2400 &  200   \\   
\hline
\end{tabular}}

\smallskip
$^a$ {Refers to mid-exposure}.
$^b$ {Exposure time in seconds}.
$^c$  {Signal-to-noise ratio measured around 6070~{\AA}}.

\end{table}