\begin{table}%t3
\caption{\label{tab:comp}Photometry of reference stars near NRAO~150.}
%\centering
\par
\begin{tabular}{lccccc}
\hline
\hline
\noalign{\smallskip}
ID & 2MASS--ID & RA & Dec (J2000)          & $r'$  & $i'$ \\
   &           & (03:59:ss) & (+50:$'$:$''$) &       &       \\
\hline
1 & J03593205+5057513 & 32.05 & 57:51.4 & $20.12\pm 0.04$ & $19.10 \pm 0.07$ \\
2 & J03593386+5057522 & 33.87 & 57:52.2 & $20.12\pm 0.02$ & $18.48 \pm 0.01$ \\
3 &    ...            & 31.86 & 57:45.0 & $20.86\pm 0.10$ & $19.79 \pm 0.14$ \\
4 & J03592824+5058196 & 28.24 & 58:19.6 & $19.62\pm 0.01$ & $18.66 \pm 0.07$ \\
5 &    ...            & 56.58 & 57:47.3 & $21.00\pm 0.07$ & $19.75 \pm 0.14$ \\
6 & J03592625+5057054 & 26.26 & 57:05.1 & $18.98\pm 0.01$ & $18.04 \pm 0.09$ \\
7 & J03592814+5058277 & 28.18 & 58:27.7 & $18.76\pm 0.01$ & $17.70 \pm 0.04$ \\
\hline                                                           
\end{tabular}\vspace*{1.5mm}
\end{table}