\begin{table}%t5
%\centering
\par
\caption{The derived parameters for the two components of the 
binary star V20. We found the colours from Fig.~\ref{fig:v20_cmd}, and
in the text we explain how \teff\ was determined. 
The estimated errors are given in parenthesis.
\label{tab:v20}}
\begin{tabular}{c|cccc|l}
\hline\hline
Component   & $V$ & $V-I$ & $(V-I)_0$ &  \teff & \multicolumn{1}{c}{$BC_V$} \\ 
\hline
Primary     &  17.38(1) &    0.95(1) & 0.82(6) & 5200(200) & $-0.20$(5) \\ %& 3.77(12) \\
Secondary   &  20.94(1) &    1.61(1) & 1.48(6) & 4070(200) & $-0.96$(10) \\ 
\hline
\end{tabular}
\end{table}