\begin{table}%t1
\caption{\label{table 1}The compiled data for the NGC~3227.}
%\centerline
{
\small \begin{tabular}{ccccc}
\hline\hline
Date & Aperture & Nucleus & Sy type & References\\
& & brightness&&\\
\hline
1 &2&3&4&5\\
\hline
03.1967 & ? & deep minim.& Sy2 & 1\\            
01.1977 & $1\farcs0\times 1\farcs 5$ & flare in max. & Sy1 & 2\\      
01.1990& see Fig.~\ref{Fig4} & maximum& Sy1 &3\\       
01.1992& $5''\times 10''$ &flare in max.& Sy1 &4\\
03.1992& $5''\times 10''$ & maximum & Sy1&4\\
\hline
\end{tabular}}
\medskip
References: 1 --~Rubin, Ford (\cite{Rubin1968}); 2 -- Pronik, Metik (\cite{Pronik2004}, \cite{Pronik2005});  3~--~Salamanka et~al. (1994); 4 -- Winge et~al. (\cite{Winge1995}).
\end{table}