\begin{table}%t1
%\centering
\par
\caption {Orbital parameters of the \gl\ planetary system, as derived
from the fit of \citet{udry07}.
\label{params}}
\begin{tabular}{lllllll}
\hline\hline
\noalign{\smallskip}
Planet & Period (days) & Semi-major axis (AU) & Eccentricity & $\omega$\ (deg)&
$t_{\rm p}$ (${\rm JD}-2~400~000$)& Mass ($M_\oplus$)\\
\noalign{\smallskip}\hline\noalign{\smallskip}
\gl~b & $5.36843\pm0.00031$  & $0.04061\pm0.16\times10^{-6}$ &
 $0.01374\pm0.01405$ & $273.21195\pm60.54198$ & $52998.74631\pm0.90393$ &
$15.82\pm0.25$ \\
\gl~c & $12.92648\pm0.00723$ & $0.07295\pm2.7\times10^{-4}$ &
 $0.15926\pm0.05981$ & $257.41189\pm24.37209$ & $52993.40770\pm1.00130$ &
$5.073\pm0.31$ \\
\gl~d & $83.22730\pm0.65845$ & $0.2525\pm0.013$              &
 $0.12118\pm0.12034$ & $317.01021\pm41.79575$ & $52946.80339\pm11.49888$ & 
$7.804\pm0.69$ \\
\noalign{\smallskip}\hline
\end{tabular}
\end{table}