\begin{table}%t5
%\centering
\par
\caption{\label{tab:rv4}HD120780 radial-velocity data.} 
\begin{tabular}{ccc}
\hline\hline \noalign{\smallskip}
\multicolumn{1}{c}{JD}& \multicolumn{1}{c}{$RV$~(m/s)}& \multicolumn{1}{c}{$\sigma$$_{\rm{rv}}$~(m/s)} \\
\hline
& & \\
2452389.145 &    85.9 &  1.4  \\
2452390.076 &    79.7 &  1.3 \\
2452422.026 &    42.3 &  1.4 \\
2452452.991 &     3.8 &  1.1 \\
2452454.920 &    --0.3 &  1.0 \\
2452455.936 &    --0.1 &  1.1 \\
2452509.881 &   --59.6 &  1.7 \\
2452655.135 &  --230.7 &  2.8 \\
2452748.038 &  --345.9 &  1.4 \\
2453217.880 &  --923.7 &  1.9 \\
2453489.100 & --1268.8 &  1.5 \\
\hline
\end{tabular}
\end{table}