\begin{table}%t5 \caption{\label{OMCresults}Median $V$ magnitude, the average of error estimates $\langle \sigma_V \rangle$, luminosity in the Johnson $V$~filter, \aox, the number of photometric points and contamination flag (``Y'' indicates potential contamination by a nearby star up to 0.2~mag; see text for details).} %\centering \small \begin{tabular}{lccccrc} \hline\hline %&&&&&& \\[-8pt] Name & $V$ [mag] & $\langle \sigma_V \rangle$ [mag] & $\log$~\lv\ [erg s$^{-1}$] & \aox & $N$& Cont. flag \\ \hline Mrk 348 & 13.76 & 0.05 & 42.71 & 1.01 & 81 & Y \\ NGC 788 & 12.60 & 0.04 & 43.09 & 1.14 & 1342 & \\ NGC 985 & 13.73 & 0.05 & 43.66 & 1.13 & 644 & \\ NGC 1052 & 11.38 & 0.03 & 42.70 & 1.31 & 1004 & \\ NGC 1068 & 9.99 & 0.02 & 44.80 & 1.38 & 693 & \\ NGC 1275 & 12.51 & 0.04 & 43.27 & 1.21 & 856 &\\ NGC 1365 & 11.51 & 0.05 & 42.72 & 1.27 & 35 & \\ 3C 120 & 14.00 & 0.05 & 43.31 & 1.02 & 216 & \\ UGC 3142 & 15.12 & 0.22 & 43.49 & 0.93 & 259 & \\ ESO 33-2 & 13.99 & 0.09 & 42.78 & 1.09 & 40 & \\ Mrk 3 & 12.88 & 0.04 & 42.95 & 1.08 & 425 & Y \\ Mrk 6 & 13.68 & 0.06 & 42.94 & 1.07 & 657 & \\ QSO B0716+714 & 14.27 & 0.09 & 45.26 & 1.19 & 1116 & \\ ESO 209-12 & 14.60 & 0.21 & 43.24 & 1.07 & 387 & \\ PG 0804+761 & 14.07 & 0.08 & 44.28 & 1.09 & 299 & \\ 4U 0937-12 & 12.66 & 0.03 & 42.56 & 1.12 & 443 & \\ MCG-05-23-016 & 13.12 & 0.05 & 42.47 & 1.03 & 1514 & \\ NGC 3227 & 12.06 & 0.04 & 42.21 & 1.11 & 12 & \\ NGC 3281 & 12.67 & 0.04 & 42.85 & 1.16 & 316 & \\ Mrk 421 & 13.05 & 0.06 & 43.58 & 0.91 & 3112 & \\ NGC 4051 & 12.26 & 0.04 & 41.67 & 1.20 & 76 & \\ NGC 4138 & 11.87 & 0.04 & 42.06 & 1.26 & 585 & \\ NGC 4151 & 11.52 & 0.04 & 42.28 & 1.03 & 7461 & \\ Mrk 50 & 14.47 & 0.09 & 42.86 & 1.11 & 774 & Y \\ NGC 4388 & 12.26 & 0.06 & 42.80 & 1.05 & 509 & \\ NGC 4395 & 14.09 & 0.11 & 40.23 & 1.05 & 7 & \\ 3C 273 & 12.58 & 0.04 & 45.31 & 1.05 & 2010 & Y \\ IGR J12391-1612 & 14.15 & 0.06 & 43.34 & 1.05 & 104 & \\ NGC 4593 & 12.24 & 0.04 & 42.83 & 1.14 & 1204 & \\ ESO 323-32 & 13.11 & 0.07 & 43.03 & 1.20 & 158 & Y \\ 3C 279 & 15.52 & 0.11 & 45.29 & 1.01 & 294 & \\ Mrk 783 & 15.39 & 0.16 & 43.39 & 1.01 & 37 & \\ NGC 4945 & 12.44 & 0.17 & 41.43 & 1.04 & 327 & \\ IGR J13091+1137 & 13.70 & 0.05 & 43.18 & 1.07 & 15 & \\ NGC 5033 & 11.57 & 0.03 & 42.16 & 1.33 & 55 & \\ ESO 383-18 & 14.33 & 0.08 & 42.32 & 1.09 & 673 & Y \\ MCG-06-30-015 & 13.23 & 0.07 & 42.36 & 1.09 & 1268 & Y \\ Mrk 268 & 14.30 & 0.06 & 43.37 & 1.08 & 7 & \\ IC 4329A & 13.20 & 0.05 & 43.00 & 0.98 & 501 & \\ NGC 5506 & 12.93 & 0.05 & 42.38 & 1.03 & 701 & \\ NGC 5548 & 13.14 & 0.05 & 43.08 & 1.17 & 256 & \\ H 1426+428 & 16.11 & 0.25 & 43.72 & 0.98 & 619 & \\ NGC 5995 & 13.47 & 0.07 & 43.29 & 1.05 & 118 & Y \\ ESO 138-1 & 13.59 & 0.11 & 42.34 & 1.20 & 12 & Y \\ NGC 6221 & 11.91 & 0.07 & 42.49 & 1.33 & 16 & \\ Mrk 501 & 13.21 & 0.04 & 43.65 & 1.07 & 567 & \\ NGC 6300 & 11.52 & 0.05 & 42.38 & 1.19 & 31 & \\ 3C 390.3 & 14.61 & 0.13 & 43.54 & 1.00 & 482 & Y \\ 1H 1934-063 & 13.35 & 0.05 & 42.59 & 1.10 & 12 & \\ NGC 6814 & 12.42 & 0.04 & 42.31 & 1.14 & 134 & \\ ESO 399-20 & 13.96 & 0.08 & 43.07 & 1.18 & 84 & \\ Mrk 509 & 13.38 & 0.05 & 43.60 & 1.03 & 400 & \\ NGC 7172 & 12.66 & 0.04 & 42.66 & 1.10 & 508 & \\ Mrk 915 & 14.10 & 0.09 & 42.75 & 1.09 & 40 & \\ 1H 2251-179 & 14.20 & 0.09 & 43.83 & 0.98 & 1570 & Y \\ NGC 7469 & 12.70 & 0.04 & 44.21 & 1.15 & 22 & \\ MCG-02-58-022 & 14.13 & 0.06 & 43.59 & 1.01 & 93 & \\ \hline \end{tabular} \end{table}