\begin{table}%t2
%\centering
\par
\caption{Hydrodynamical models of Cepheids.} \label{Tab_Cepheids_Parameters}
\begin{tabular}{lccccc}
\hline \hline \noalign{\smallskip}
\par
Name     &  $P$     &   $T_{{\rm eff}}$  & $\frac{L}{L_{\odot}}$              &        $\frac{M}{M_{\odot}}$        &         $\frac{\overline{R}}{R_{\odot}}$                        \\
         &     [days]   &     [K]          &                              &                                   &                                                      \\
\hline
\par
S Cru       & 4.7  &   5900     &  1900         &       5.6               &               42  \\
$\delta$~Cep & 5.4 &  5877   &    1995 &        4.8 &     43 \\
Y Sgr        & 5.7   &   5850     &  2200         &       5.0               &            45    \\
$\beta$~Dor & 9.9   &   5500    &  3500         & 5.5                     & 65                \\
$\zeta$~Gem & 10.4  &   5500    &  3600         & 5.0                      & 64               \\
RZ Vel      & 21.6   &   5400    &  7450         & 7.0                     &  109              \\
$\ell$~Car      & 34.4   &   5225    &  21000    & 11.5                    &  180              \\
RS Pup      & 42.9   &   5100    &  22700         & 9.7                     &  186              \\
\hline 
\end{tabular}
\end{table}