\begin{table}%t1
\caption{\label{2007bg_sequence}Local standard stars used to calibrate the photometry of SN~2007bg to the {\it BVRI} standard Landolt system (Johnson-Cousins).}
\par
%\centering
\par
\begin{tabular}{c c c c c}
\hline\hline \noalign{\smallskip}
Star ID & {\it B} & {\it V} & {\it R} & {\it I}  \\
\hline
1	& 19.45  $\pm$	0.03		& 19.07  $\pm$	0.04		& 18.72  $\pm$ 0.03		& 18.53  $\pm$	0.04	 \\	
2	& 20.71  $\pm$	0.07 		& 19.36  $\pm$	0.04 		& 18.42   $\pm$ 0.05 		& 17.06   $\pm$	0.02 	 \\	
3	& 17.85   $\pm$	0.02 		& 17.29  $\pm$	0.02 		& 16.87   $\pm$ 0.02 		& 16.58   $\pm$	0.02 	 \\	
4	& 18.91   $\pm$	0.03 		& 18.03   $\pm$	0.02 		& 17.34   $\pm$ 0.03 		& 16.86   $\pm$	0.02 	\\	
5	& 19.68   $\pm$	0.04 		& 19.34   $\pm$	0.04 		& 19.08   $\pm$ 0.04 		& 18.82   $\pm$	0.04 	 \\	
6	& 16.00   $\pm$	0.02 		& 15.49   $\pm$	0.02 		& 15.02   $\pm$ 0.02 		& 14.72   $\pm$	0.02 	 \\
\hline
\end{tabular}
\end{table}