\begin{table}%t2
%\centering
\par
\caption {\label{sjs2}Coefficients $M_{j,k}$ of the Lagrange-Laplace solution 
for the Jupiter-Saturn system. The coefficients of the terms with
frequencies other than~$g_5$ and $g_6$ are omitted.
}
\begin{tabular}{ccc}
\hline\hline
$_j\setminus^k$\quad\hbox{} & 5& 6  
\\\hline 
5 & 0.0442& 0.0157\\ 
6 &  0.0330& 0.0482   
 \\\hline  
\end{tabular}
\end{table}