\begin{table}%t1
\caption{\label{table1}The list of Vilnius photoelectric standard stars
observed  in the studied fields and used for calibration.}
\small%\centering
\par
\begin{tabular}{c| c| c| c c c c}
 \hline\hline
  N.Zda &   S66  &M92C&   $V$   & $P-X$ & $X-Y$ & $V-S$   \\
   \hline
   4    &  IX-13 & 38 & 14.00 & 0.58& 0.88& 0.75  \\
   8    &  X-49  & 2  & 12.21 & 0.91& 1.22& 0.90  \\
   9    &  III-65& 7  & 12.47 & 0.89& 1.28& 0.91  \\
   6    &  IV-40 & 35 & 13.88 & 0.58& 0.88& 0.75  \\
    \hline
        &        &M92W&   $V$   & $P-X $& $X-Y$ & $V-S$   \\ 
        \hline
   1    &  VI-7  & 10 &   13.50 &  0.60&  0.81&    0.59        \\
   2    &  VII-18& 2  &   12.15 &  1.04&  1.37&    0.93        \\
   6    &  IV-40 &15(35C)& 13.88 &  0.58&  0.88&    0.72    \\ 
   \hline
\end{tabular}
\end{table}