\begin{table}%t7
\caption{Mean standard colours and global atmospheric parameters of DG~Leo in two photometric systems.}\label{tab:uvbygen}
%\centering
\par
\begin{tabular}{lcccccccccccc}
\hline  \hline
a) Str\"omgren&  $V$           &   $b-y$        &    $m1$         &    $c1$        & $(b-y)_{0}$  & $m_{0}$      & $c_{0}$      & $\beta$      & $M_{V}$ & $T_{{\rm eff}}$ & log $g$ & [M/H] \struutup \\ 
              & {\small mag} & {\small mag} & {\small mag } & {\small mag} & {\small mag} & {\small mag} & {\small mag} & {\small mag} & mag     & K         & dex   & dex \struutdown \\
\cline{2-13}
              & 6.0788 & 0.1462 & 0.2210 & 0.9328 & 0.140 & 0.223 & 0.932 & 2.788 & 1.20 & 7540 & 3.59 & 0.32 \\
              & {\small (0.012)}&{\small (0.003)}&{\small (0.005)}&{\small (0.008)} &&&&& {\small (0.30)}&{\small (100)}&{\small (0.12)}&{\small (0.12)} \\
\hline
b) Geneva     & $V$  & [$U-B$] & [$V-B$] & $B1-B$ & $B2-B$ & $V1-B$ & $G-B$ && $M_{V}$ & $T_{{\rm eff}}$ & log $g$ & [M/H] \struutup \\
              & {\small mag} & {\small mag} & {\small mag } & {\small mag} & {\small mag} & {\small mag} & {\small mag} && {\small mag} & K & dex & dex \struutdown \\
\cline{2-13}
              & 6.0817 & 1.6083 & 0.6467 & 0.9625 & 1.4083 & 1.3656 & 1.7780 && 1.08 & 7340 & 3.90 & 0.21 \\
              & {\small (0.012)}&{\small (0.003)}&{\small (0.006)}&{\small (0.002)}&{\small (0.004)}&{\small (0.005)}&{\small (0.006)}&&{\small (0.31)}&{\small (100)}&{\small (0.12)}&{\small (0.12)} \\
\hline
\end{tabular}
\end{table}