\begin{table}%t5
%\centering
\par
\caption{The main terms of LEA-406a harmonic development of lunar ecliptic latitude $U$.}
\label{Table5}
% %\centering
 % used for centering table
% \begin{tabular}{cccccccc} % centered columns (8 columns)
 \begin{tabular}{@{}cccccccc@{}} % centered columns (8 columns)
\hline\hline
\noalign{\smallskip}
\multicolumn{4}{c}{Argument} & Period & $A_0^{(U)}$ &  $A_1^{(U)}$ &  $A_2^{(U)}$ \\ % table heading
$l$ & $l'$ & $F$ & $D$ & 
% $\Omega$ & $\lambda_{Me}$ & $\lambda_{Ve}$ & $\lambda_{Ea}$ & $\lambda_{Ma}$ & 
% $\lambda_{Ju}$ & $\lambda_{Sa}$ & $\lambda_{Ur}$ &  $\lambda_{Ne}$ &  $p_A$ & 
[d] & [\arcsec] & [\arcsec/th.y] & [\arcsec/(th.y)$^2$] \\   
\noalign{\smallskip}
\hline % inserts single horizontal line
\noalign{\smallskip}
0  & 0  &1 &  0 &  
% 0  & 0  & 0  & 0 &  0  & 0&   0&   0 &  0 &  0&
27.21&18~461.241&0.062&3.965 \\
  1 &  0  & 1 &  0  & 
% 0  & 0 &  0 &  0 &  0 & 0  & 0  & 0 &  0 &  0&
13.69&1010.168&0.005&0.456 \\
  1 &  0 & --1 &  0 &  
% 0 &  0  & 0 &  0 &  0  & 0 &  0  & 0 &  0 &  0&
2190.35&999.694&0.012&0.028 \\
  0 &  0 & --1&   2 &  
% 0  & 0  & 0 &  0 &  0  & 0 &  0 &  0 &  0 &  0&
32.28&623.656&0.028&0.210 \\
 --1 &  0 &  1 &  2 &  
% 0 &  0 &  0 &  0  & 0 &  0  & 0 &  0 & 0 &  0&
14.67&199.486&0.005&0.107 \\
 --1 &  0 & --1  & 2  & 
% 0 &  0 &  0 &  0  & 0 &  0  & 0  & 0  & 0 &  0&
188.20&166.576&0.004&0.021 \\
  0  & 0 &  1 &  2 &  
% 0  & 0  & 0 &  0 &  0 &  0  & 0  & 0 &  0 &  0&
9.57&117.262&0.005&0.089 \\
  2 &  0  & 1&   0 &  
% 0  & 0 &  0 &  0 &  0 &  0  & 0 &  0 &  0 &  0&
9.15&61.912&0.001&0.044 \\
\noalign{\smallskip}
\hline
\end{tabular} 
\end{table}