\begin{table}%t3
%\centering
\par
\caption{Photometry and estimated component parameters.\label{tab:mass}}
\begin{tabular}{ l ccc c c c }
\hline \hline
Comp. & $J$ & $H$ & $K_{\rm s}$    & $Hp$ & Mass &  Sp.\\
\hline
A & 6.891 & 6.250  & 6.072 & 9.09  & 0.65 & K5V \\
B & 7.427 & 6.770  & 6.553 & 10.05 &0.52 & M0V \\ 
C & 6.542 & 6.012  & 5.882 & 8.79  & 0.69 & K4V \\
E & 9.193 & 8.733  & 8.524 & --     &0.2: & M4V? \\
\hline
\end{tabular}
\end{table}