\begin{table}%t1
\caption{\label{alfcen_params}Properties of $\alpha$~Cen A and B.}
\small%\centerline
{
\begin{tabular}{lcc}
\hline
\hline
& $\alpha$~Cen~A & $\alpha$~Cen~B \\
\hline
Other names & \object{HD 128620} & \object{HD 128621}  \\
& \object{HIP 71683} & \object{HIP 71681}  \\
\hline
$m_{V}$ & $-$0.01 & 1.33\\
$m_{J}$ & $-$1.16 & $-$0.01\\
$m_{H}$ & $-$1.39 & $-$0.49\\
$m_{K}$ & $-$1.50 & $-$0.60\\
Spectral type & G2V & K1V\\
$T_{{\rm eff}}$ (K)$^{{a}}$ & $5790 \pm 30$ & $5260 \pm 50$ \\
$\log g$$^{{a}}$  & $4.32 \pm 0.05$ & $4.51 \pm 0.08$ \\
$\left[ {\rm Fe/H} \right]$$^{{a}}$  & $0.20 \pm 0.02$ & $0.23 \pm 0.03$ \\
\hline
\end{tabular}}
\smallskip
 $^{{a}}$  From Morel et~al.~(\cite{morel00}) and references therein.
\end{table}