\begin{table}%t2
    \caption{\label{orb_par}The orbital parameters of $\psi$ Cen found with the first
    (Cols.~2 and~3) and the final solution (Cols.~4 and~5).}
        %\centering
\par
    \small\begin{tabular}{c c c c c}
    \hline
    \hline\noalign{\smallskip}
    Parameters & First values & Errors & Final values & Errors\\
    \hline
    $K1$ & $48.982$ & $0.074$~km~s$^{-1}$ & $49.01$ & $0.11$~km~s$^{-1}$\\
    $K2$ & $80.716$ & $0.471$~km~s$^{-1}$ & $79.92$ & $0.15$~km~s$^{-1}$\\
    $\mu_0$ & $0.3517$ & $0.0012$~rad & $0.3531$ & $0.0014$~rad\\
    $e$ & $0.5575$ & $0.0014$ & $0.55408$ & $0.00024$\\
    $\omega_0$ & $0.3549$ & $0.0029$~rad & $0.3507$ & $0.0017$~rad\\
    $V_{\rm bary}$ & -- & -- & $5$ & $2$~km~s$^{-1}$\\
    $P_{ \rm phot}$ & -- & -- & $38.81252$ & $0.00029$~d\\
    \hline
    \end{tabular}\vspace*{3mm}
    \end{table}