\begin{table}%t5
\par
\caption{Parameters of the secondary star in EX Hya compared with
those of Gl551 (Proxima Cen).
%
\label{tab:secondary}}
%\centerline
 {\begin{tabular}{lll} 
\hline \hline \noalign{\smallskip}
Parameter &  EX~Hya~B  & Gl551$^{1}$ \\[0.5ex]
 \hline
\noalign{\medskip}
Spectral type  & dM$5.5\pm 0.5$   & dM5.5             \\
Temperature $T_{\rm eff}$ (K)   &                  & $3042\pm117$      \\
Distance $d$ (pc)  & $64.5\pm 1.2$    & $1.295\pm 0.007$  \\
$K$  (mag)     & $12.89\pm0.11$   & 4.36              \\
$M_{\rm K}$ (mag) &$8.83\pm 0.12$   & $8.80\pm 0.02$    \\
Mass $M$ (\msun)   & $0.108\pm 0.008$ & $0.123\pm 0.006$  \\
Radius $R$ (\rsun) & $0.1516\pm 0.0034$ & $0.145\pm 0.011$  \\
Velocity amplitude $K_2$ (\kms)   & $432.4\pm 4.8$      &                \\
Systemic velocity $\gamma$ (\kms)   & $-58.2\pm 1.0$      &                 \\[0.5ex]
\hline      
\end{tabular}}
\par
\smallskip
$^{1)}$ From S{\'e}gransan et~al. (2003). 
\end{table}