\begin{table}%t1
\caption{\label{tab1}Astrophysical parameters for $\eta$ And, V2291 Oph, SZ Cen (solar, K units, km~s$^{-1}$, days).}
%\centerline
{\begin{tabular}{llll}
\hline\hline
   &$\eta$ And&V2291 Oph&SZ Cen \\\hline
$M_1$                   &2.395 $\pm$ 0.087     &3.86  $\pm$  0.15  & 2.317  $\pm$  0.026\\
$M_2$                   &2.268 $\pm$ 0.082     &2.95 $\pm$ 0.09  & 2.277 $\pm$ 0.021\\
log ($L_1/L_{\odot}$) &1.81 $\pm$ 0.02       &2.73 $\pm$ 0.08  &1.77 $\pm$ 0.007\\
log ($L_2/L_{\odot}$) &1.60 $\pm$ 0.02       &2.07 $\pm$ 0.08  &1.64 $\pm$ 0.07\\
log $T_{{\rm eff1}}$    &3.703 $\pm$ 0.007     &3.686 $\pm$ 0.009&3.875 $\pm$ 0.017\\  
log $T_{{\rm eff2}}$    &3.700 $\pm$ 0.007     &4.041 $\pm$ 0.019&3.892 $\pm$ 0.017\\
 $R_1$                  &10.5& 32.9 $\pm$ 1.5  &4.554 $\pm$ 0.032\\
 $R_2$                  &8.5 & 3.0 $\pm$ 0.2   &3.624 $\pm$ 0.026\\
$e$                       &0.0034  $\pm$  0.0020 &0.311& 0.0\\
$P$                       &115.7 & 385& 4.11\\
$V_{\rm rotA}$	      & 9 & -- & 60 $\pm$ 5\\ 
$V_{\rm rotB}$	      & 9 & -- & 44 $\pm$ 4\\
Ref.              & 1, 2, 3, 6& 1, 2& 4, 5\\
\hline
\end{tabular}}
\medskip
References to Table~\ref{tab1}:
{\bf 1} Schr\"oder et~al. (\cite{Schroder1997});
{\bf 2} Iwamoto \& Saio (\cite{Iwamoto1999});
{\bf 3} Griffin (private comunication);
{\bf 4} Andersen (\cite{Andersen1975});
{\bf 5}~Andersen (\cite{Andersen1991});
{\bf 6} Massarotti et~al. (\cite{Massarotti2008}).
\end{table}