\begin{table}%t2
\caption{\label{AR_migration}Relative migration rates $\Delta \Omega / \Omega$ of the active longitudes for different facular-to-spotted area ratio $Q$ and rotation period $P_{\rm rot}$.}
%\centering
\par
\small\begin{tabular}{ccccc}
\hline\hline
$Q$ & $P_{\rm rot}$ & AR$_{1}$ & AR$_{2}$ & AR$_{3}$ \\
& (days)  &  &  &  \\
\hline
0.0  & 9.202 & $0.106 \pm 0.025$ & $0.034 \pm 0.008$  &  $0.070 \pm 0.024$ \\ 
4.5  & 9.202 & $0.108 \pm 0.008$ & $0.052 \pm 0.009$ & $0.100 \pm 0.024$ \\
 4.5  & 8.870 & $0.063 \pm 0.011$ & $0.010 \pm 0.010$ & $0.073 \pm 0.036$ \\
7.0 & 9.202 &  $0.100 \pm 0.011$ & $0.046 \pm 0.010$ & $0.128 \pm 0.010$ \\
\hline
\end{tabular}%\vspace*{4mm}
\end{table}