\begin{table}%tA.2
\caption{\label{tabdisp} Dispersion values in the comparison between
synthetic magnitudes and photoelectric photometry from the Lausanne
database.}
\setlength{\tabcolsep}{10pt}
\renewcommand{\arraystretch}{1.1}
%%%%\centering


\par
\begin{tabular}{lrclr}
\hline\hline
   quantity &  rms & \hspace{0.5cm}   &   quantity &  rms \\
\hline
$\Delta U$    &     0.145 &    &  $\Delta U-B$  &     0.156 \\
$\Delta B$    &     0.044 &    &  $\Delta B-V$  &     0.083 \\
$\Delta V$    &     0.072 &    &  $\Delta V-R$  &     0.135 \\
$\Delta R$    &     0.172 &    &  $\Delta R-I$  &     0.177 \\
$\Delta I$    &     0.249 &    &               &          \\
\hline
\end{tabular}
\end{table}