\begin{table}%t2
%\centering
\par
\caption{\label{dev1}Development of $\frac{1}{2} \left( \frac{a}{r} \right) ^3 $ of Venus (the corresponding values for the Earth are in square brackets). $t$ is counted in Julian centuries.}
\small \begin{tabular}{lcccc}
\hline\hline
 $M$  & $L_{S}$ & Period &&   \\
 & &days &  $\cos \times 10^{-7}$ & $t \cos \times  10^{-7}$  \\ 
\hline\noalign{\smallskip}
0& 0 & &$\frac{1}{2}\left(1+\frac{3}{2}e^2\right) =5000344~~[5002093]$ &--96 ~~[--105]\\
1 & 0 & 224,70~~[365,26] & $\frac{1}{2}\left(3e + \frac{27}{8}e^3\right)= 101584~~[250708]$  & --7164~~[--6305]\\
 2 & 0 & 112,350~~[182,63] & $\frac{9}{4}e^2=1032~~[6282]$ & --146~~[--316]\\
3&0&74.900~~[121.753]& $\frac{53}{8}e^3=200~~[308]$&-40~~ [--23]\\
\hline
\end{tabular}
\end{table}