\begin{table}%T3
\caption{\label{t3}Brightnesses of the comparison and check stars (``c'' and  ``d'', Goetz \cite{Goetz1985}) compiled from different publications.}
\small%\centering
\par
\begin{tabular}{cccccr}
\hline\hline
$U$&$B$&$V$&$R$&$I$&Ref.\\
\hline
\multicolumn{6}{c}{comparison star ``c'' = GSC 1207 1535}\\
12.04&11.72&11.01&10.41&9.97&Efimov et~al. (\cite{Efimov1998})\\
11.91&11.68&10.99&&&Shafter et~al. (\cite{Shafter1985})\\
''&''&''&&&Goetz (\cite{Goetz1985})\\
&11.74&11.05&10.66&10.3&Henden (\cite{Henden2007})\\
&11.82&11.17&&&VSNET (2005)\\
&&11.1&&&AAVSO (2007)\\
\multicolumn{6}{c}{check star ``d'' = GSC 1207 1562}\\
13.38&12.17&11.02&&&Goetz (\cite{Goetz1985})\\
&12.20&11.05&10.51&9.97&Henden (\cite{Henden2007})\\
&11.96&10.86&&&VSNET ({2005})\\
&&11.1&&&AAVSO ({2007})\\
\hline
\end{tabular}
\par
\end{table}