\begin{table}%t11
%\centering
\par
\caption{{\bf Order 0.}
Cepheid average angular diameters and distances derived from the VINCI
interferometric measurements, assuming a constant diameter model ($\Delta D=0$),
The average diameter $\overline{D}$ is taken from Gieren et~al.~(\cite{gieren98}).
Two error bars are given in brackets for the angular diameter: the statistical dispersion
and the calibration systematics.
The uncertainty mentioned for the distance $d$ is the quadratic sum
of the statistical, calibration and P--R  a priori diameter errors, the last two
being systematic in nature. The three types of errors are also reported
separately in brackets.
The results for $\ell$~Car
are mentioned only for completeness, but are not meant to be used
for further analysis, as our observations are inconsistent with a constant
diameter model.
}
\label{results_cepheids0}
\begin{tabular}{lclc}
\hline\hline
\noalign{\smallskip}
Star & $\overline{\theta_{\rm LD 0}}$~(mas) & $d_0$~(pc) & $\chi^2_0$ \\
\noalign{\smallskip}
\hline
\noalign{\smallskip}
X~Sgr & $1.471 \pm 0.033_{[0.013\ 0.031]}$ & $324 \pm 18_{[3\ 7\ 17]}$ & 0.38 \\
\noalign{\smallskip}
$\eta$~Aql & $1.856 \pm 0.028_{[0.009\ 0.026]}$ & $261 \pm 14_{[1\ 4\ 14]}$ & 3.98 \\
\noalign{\smallskip}
W~Sgr & $1.348 \pm 0029_{[0.011\ 0.027]}$ & $376 \pm 22_{[3\ 8\ 21]}$ & 0.90\\
\noalign{\smallskip}
$\beta$~Dor & $1.926 \pm 0.024_{[0.014\ 0.020]}$ & $319 \pm 20_{[3\ 2\ 19]}$ & 1.31 \\
\noalign{\smallskip}
$\zeta$~Gem & $1.747 \pm 0.061_{[0.025\ 0.056]}$ & $360 \pm 25_{[5\ 12\ 22]}$ & 0.51\\
\noalign{\smallskip}
Y~Oph & $1.459 \pm 0.040_{[0.023\ 0.033]}$ & $638 \pm 50_{[10\ 14\ 47]}$ & 0.16 \\
\noalign{\smallskip}
($\ell$~Car) & $3.071 \pm 0.012_{[0.004\ 0.011]}$ & $524 \pm 49_{[1\ 2\ 49]}$ & 23.2 \\
\hline
\end{tabular}
\end{table}