\begin{table}%T7
\par
\caption{\label{tabunica}{\it Top}: observed properties of Y Oph; {\it Bottom}: physical parameters of the best fit model.} 
%\centering
\par
\begin{tabular}{c c c c c c}
\hline
\hline
$P$&$\langle m_V\rangle $&$B-V$&$Z$   &$E(B-V)$&$A$\\
\hline
17.1268&6.169&1.377&0.05&0.655&0.483 \\
\hline
\par
$M$&$Y$&$Z$&$T_{\rm eff}$&$\frac{R}{R_{\odot}}$&$\log \frac{L}{L_{\odot}}$ \\
\hline
7~$M_{\odot}$&0.28&0.02&4720 K& 97.77&3.64 \\
\hline
\end{tabular}
\end{table}