\begin{table}%t2
%\centering
\par
\caption{Parameters of the  OGLE-TR-123 system (the primary mass and radius are estimated with the help of stellar evolution models).  }
\label{companion}
\label{table2}
\begin{tabular}{ll}
\hline\hline
Period [days]&  1.803865 $\pm$ 0.000001\\
Transit epoch [BJD]&  2453459.6096$\pm$ 0.0005 \\
Impact parameter & 0 $\pm$ 0.27 \\
Radius ratio & 0.0856 $\pm$ 0.0014 \\
Transit duration [days] & 0.1279 $\pm$ 0.0014\\
Eccentricity (fixed)            &  0.0\\
Inclination angle [degrees] & 86 -- 90 \\
Temperature of the primary [K]& 6700 $\pm$ 300 \\
Rotation velocity [km~s$^{-1}$]& 34 $\pm$ 3 \\
Systemic velocity [km~s$^{-1}$]     & 0.487 $\pm$ 0.204\\
Orbital semi-amplitude [km~s$^{-1}$]     & 11.967 $\pm$ 0.280\\
Mass function         & $(0.3210 \pm 0.0225)\times 10^{-3}$  \\
Residuals O--C [km~s$^{-1}$]   & 0.523 \\
Semi-major axis [AU] & 0.031 $\pm$ 0.002 \\
\ \\
Distance & 1600 $\pm$ 400 pc\\
\ \\
Primary mass & 1.29 $\pm$ 0.26 \Msol \\
Primary radius & 1.55  $\pm$  0.10 \Rsol \\
\ \\
Secondary mass & 0.085 $\pm$ 0.011 \Msol \\
Secondary radius & 0.133 $\pm$ 0.009 \Rsol \\
\hline
\end{tabular}
\end{table}