\begin{table} %T4   
\caption[]{\label{tab:v636_phel}Adopted photometric elements for V636~Cen.
}
  \centerline {\begin{tabular}{ll} 
\hline            
\hline\noalign{\smallskip}             
$i$              & $89{\fdg}65 \pm 0{\fdg}10$ \\
$r_{\rm p}$            & $0.0740 \pm 0.0003$ \\       
$r_{\rm s}$            & $0.0603 \pm 0.0003$ \\       
\noalign{\smallskip}             
\hline
\end{tabular}  }
            
            \smallskip
\centerline {\begin{tabular}{lrrrr}  
\hline           
                 & $y$    & $b$    & $v$   & $u$  \\   
                 \hline        
\noalign{\smallskip}             
$L_{\rm s}/L_{\rm p}$        & 0.269  & 0.237  & 0.178 & 0.152\vspace{-0.8mm} \\  
                 &$\pm$15 &$\pm$15 &$\pm$15&$\pm$15\\  
\hline             
\end{tabular} }

\smallskip             

{Note:} The individual luminosity ratios are based
on the mean stellar and orbital parameters and include the
average activity level (spots) in 1987 and 1988.
\end{table}