\begin{table}%t3
%\centering
\par
\caption{\label{binary}Basic physical properties of \but as a single-line binary based on elliptical-orbit solution for the \ha emission RVs -- (cf.
Table~\ref{elem13}). }
\begin{tabular}{lllcc}
\hline\hline\noalign{\smallskip}
$i$  & $M_2/M_1$  & $M_2$ & $A$ & $A_{\rm peri.}$ \\
($^\circ$)  &     & (\ms) & (\rs) & (\rs)\\
\noalign{\smallskip}\hline
90&0.0876&0.254&223.5&53.0\\
70&0.0936&0.272&223.9&53.1\\
50&0.1164&0.338&225.5&53.4\\
\hline\noalign{\smallskip}
\end{tabular}
\tablefoot{The estimates are derived assuming the primary mass
of $M_1=2.9$~\ms, $A$ and $A_{\rm peri.}$ denote the semi-major axis
and the binary separation at periastron, respectively.}
\vspace*{2.5mm}
\end{table}