\begin{table}%t2 
%%\centering
\par
{\caption{Separation and position angle of the XZ~Tau binary. 
Errors in separation angles are estimated to be $\pm 0.005$.}\label{BinaryStar}}
 {\begin{tabular}{lll}
\hline\hline
Date of 	&Separation 	&Position angle		\\
observation	&(arcsec)	&(degrees)	 	\\ \hline
\par
1995 Jan. 5	&0.302   	&$146.35 \pm 0.38$  	\\
1998 Mar. 25	&0.299   	&$145.50 \pm 0.25$  	\\ 
1999 Feb. 3	&0.303   	&$144.85 \pm 0.26$  	\\ 
2000 Feb. 6	&0.300   	&$143.30 \pm 0.25$  	\\ 
2001 Feb. 10	&0.298   	&$142.38 \pm 0.24$  	\\ \hline
\end{tabular}}
 \end{table}