\begin{table}%t3
%\centering
\par
  \caption{\label{list_teff_and_ad} Stellar parameters used to for the
calculation of {\em (1.)} the M{\sc arcs} model atmosphere spectra
(Cols.~2--5) and {\em (2.)}  the Engelke function and blackbody
(BB) (Cols.~6, 7) in Fig.~\ref{figcompare}. Effective
temperature, \Teff, is given in Kelvin, gravity, $g$, in cm/s$^2$, and
angular diameter, \ad, in mas.}
    \begin{tabular}{lcccccc}\hline \hline
      \rule[-0mm]{0mm}{5mm} & \multicolumn{4}{c}M{\sc arcs} &
      \multicolumn{2}{c}{Engelke and BB} \\
      \raisebox{1.5ex}[0pt]{target}& \Teff & $\log g$ & [Fe/H] & \ad & \Teff & \ad \\
      \hline
      \rule[-0mm]{0mm}{5mm}\object{$\xi$ Dra} & 4440 & 2.40 & 0.10 & 3.09 &  4440 & 3.09 \\
      \object{$\alpha$ Boo} & 4320 & 1.50 & $-0.50$ & 20.66 & 4362 & 21.12 \\
      \object{$\alpha$ Tuc} & 4300 & 1.35 & 0.00 & 5.90 & 4300 & 5.90 \\ 
      \rule[-3mm]{0mm}{3mm}\object{$\beta$ And} & 3880 & 0.95 & 0.00 & 13.48 & 3839 & 13.71 \\
      \hline
  \end{tabular}
\end{table}