\begin{table}%t14
%\centering
\par
\caption{Average UD angular diameter of $\eta$~Aql and $\zeta$~Gem
from the litterature, and the associated conversion factor
$\rho = \theta_{\rm LD} / \theta_{\rm UD}$ from the linear limb darkening
coefficients of Claret (\cite{claret00}). References:
(1) Armstrong et~al. (\cite{armstrong01})
and Nordgren et~al. (\cite{nordgren00}),
(2) Lane et~al. (\cite{lane02}),
(3) this work.}
\label{ea_zg_UD}
\begin{tabular}{lcccc}
\hline\hline
\noalign{\smallskip}
Ref. & $\lambda$~($\mu$m) & $\theta_{\rm UD}$~(mas) & $\rho$ & $\theta_{\rm LD}$~(mas) \\
\hline
\noalign{\smallskip}
$\eta$~Aql\\
(1) & 0.73 & $1.65 \pm 0.04$ & 1.048 & $1.73 \pm 0.04$ \\
(2) & 1.65 & $1.73 \pm 0.07$ & 1.024 & $1.77 \pm 0.07$ \\
(3) & 2.18 & $1.80 \pm 0.03$ & 1.021 & $1.84 \pm 0.03$\\
\hline
\noalign{\smallskip}
$\zeta$~Gem\\
(1) & 0.73 & $1.48 \pm 0.08$ & 1.051 & $1.56 \pm 0.08$\\
(2) & 1.65 & $1.61 \pm 0.03$ & 1.027 & $1.65 \pm 0.03$\\
(3) & 2.18 & $1.70 \pm 0.06$ & 1.023 & $1.75 \pm 0.06$\\
\hline
\end{tabular}
\end{table}