\begin{table}%T2
%\centering
\par
\caption{\label{obs_AB_table} New observations of the wide pair 
 Gliese~22~AB obtained at the 3.5-m telescope on Calar Alto.}
\begin{tabular}{llllllll}
\hline\hline
No. & Date & Epoch & Position & Projected & Filter & Flux ratio 
 & Instrument \\ 
    &      &       &  angle [$^{\circ}$] & separation & & $F_{{\rm B}}/F_{{\rm A}}$ &  \\ \hline
1   & 30.09.1993 & 1993.7474 &  164.4 $\pm$ 0.5 & $4\farcs24 \pm 0\farcs09$ &
 $K$ & 0.199 $\pm$ 0.004 & MAGIC \\
2   & 28.01.1994 & 1994.0767 &  165.3 $\pm$ 0.6 & $4\farcs28 \pm 0\farcs06$ &
 $K$ & & MAGIC \\
3   & 15.09.1994 & 1994.7064 &  167.1 $\pm$ 0.4 & $4\farcs29 \pm 0\farcs04$ &
 $K$ & & MAGIC \\  
4   & 13.12.1994 & 1994.9501 &  166.9 $\pm$ 0.1 & $4\farcs29 \pm 0\farcs01$ &
 $K$ & 0.267 $\pm$ 0.004 & MAGIC \\
5   & 08.10.1995 & 1995.7693 &  167.4 $\pm$ 0.2 & $4\farcs29 \pm 0\farcs01$ &
 $K$ & & MAGIC \\  
6   & 28.09.1996 & 1996.7448 &  168.7 $\pm$ 0.1 & $4\farcs28 \pm 0\farcs01$ &
 $K$ & 0.245 $\pm$ 0.004 & MAGIC \\
7   & 17.11.1997 & 1997.8789 &  170.0 $\pm$ 0.3 & $4\farcs23 \pm 0\farcs01$ &
 $K$ & 0.325 $\pm$ 0.004 & MAGIC \\  
8   & 09.02.2001 & 2001.8406 &  172.8 $\pm$ 0.2 & $4\farcs00 \pm 0\farcs01$ &
 $K$ & 0.246 $\pm$ 0.006 & OMEGA Cass \\ 
9   & 03.11.2001 & 2001.8406 &  172.8 $\pm$ 0.1 & $3\farcs99 \pm 0\farcs01$ &
 $K$ & 0.270 $\pm$ 0.009 & OMEGA Cass \\
10  & 19.10.2002 & 2002.7994 &  173.0 $\pm$ 0.1 & $3\farcs956 \pm 0\farcs005$
 & $K$ & 0.298 $\pm$ 0.005 & OMEGA Cass \\\hline 
\end{tabular}
\end{table}