\begin{table}%t1
\caption{Photometry of \obj\ and of reference star~\#5, as in 
Fig.~\ref{lightcurve}. The Julian date corresponds to HJD-2~450~000~days. 
The five~points marked by an~asterisk are not used in the determination
of the time delay.}
\label{data}
%\centering
\small
\begin{tabular}{cccccccc}
\hline\hline
HJD & seeing [$''$] & mag A & $\sigma_A$ & mag B & $\sigma_B$ & mag star \#5 & $\sigma_{\rm star \#5}$ \\
\hline
3~133.412 & 1.5 & 0.273 & 0.006 & 2.244 & 0.016 & $-$0.175 & 0.013 \\
3~134.362 & 1.1 & 0.291 & 0.002 & 2.241 & 0.011 & $-$0.166 & 0.004 \\
3~135.385 & 0.9 & 0.282 & 0.004 & 2.268 & 0.012 & $-$0.177 & 0.008 \\
3~142.386 & 1.3 & 0.287 & 0.002 & 2.273 & 0.007 & $-$0.167 & 0.003 \\
3~146.415 & 1.2 & 0.276 & 0.001 & 2.264 & 0.006 & $-$0.178 & 0.002 \\
3~150.406 & 0.9 & 0.264 & 0.001 & 2.300 & 0.006 & $-$0.176 & 0.001 \\
3~152.367 & 1.0 & 0.279 & 0.004 & 2.231 & 0.011 & $-$0.172 & 0.008 \\
3~154.407 & 0.9 & 0.267 & 0.002 & 2.252 & 0.007 & $-$0.175 & 0.003 \\
3~159.364 & 1.1 & 0.253 & 0.003 & 2.254 & 0.018 & $-$0.174 & 0.005 \\
3~163.315 & 1.7 & 0.249 & 0.002 & 2.301 & 0.010 & $-$0.173 & 0.003 \\
3~166.425 & 1.0 & 0.248 & 0.002 & 2.244 & 0.008 & $-$0.177 & 0.003 \\
3~169.393 & 1.1 & 0.222 & 0.003 & 2.317 & 0.011 & $-$0.189 & 0.006 \\
3~171.430 & 1.5 & 0.234 & 0.002 & 2.284 & 0.008 & $-$0.172 & 0.004 \\
3~173.298 & 1.1 & 0.233 & 0.001 & 2.275 & 0.006 & $-$0.168 & 0.002 \\
3~175.300 & 1.1 & 0.230 & 0.001 & 2.279 & 0.006 & $-$0.178 & 0.001 \\
3~189.265 & 1.1 & 0.208 & 0.007 & 2.236 & 0.023 & $-$0.172 & 0.012 \\
3~191.360 & 1.1 & 0.215 & 0.003 & 2.255 & 0.018 & $-$0.167 & 0.004 \\
3~193.304 & 1.3 & 0.194 & 0.006 & 2.246 & 0.018 & $-$0.166 & 0.012 \\
3~195.252 & 1.0 & 0.217 & 0.002 & 2.239 & 0.007 & $-$0.170 & 0.004 \\
3~203.314* & 1.4 & 0.186 & 0.001 & 2.345 & 0.007 & $-$0.173 & 0.002 \\
3~209.256 & 1.0 & 0.189 & 0.003 & 2.198 & 0.010 & $-$0.167 & 0.007 \\
3~213.256 & 1.0 & 0.166 & 0.003 & 2.190 & 0.010 & $-$0.183 & 0.007 \\
3~216.310 & 1.7 & 0.149 & 0.006 & 2.189 & 0.018 & $-$0.163 & 0.011 \\
3~219.281 & 1.6 & 0.151 & 0.004 & 2.198 & 0.018 & $-$0.155 & 0.008 \\
3~221.234 & 1.0 & 0.178 & 0.002 & 2.241 & 0.009 & $-$0.179 & 0.003 \\
3~224.209 & 1.2 & 0.140 & 0.005 & 2.228 & 0.015 & $-$0.166 & 0.010 \\
3~232.187 & 1.1 & 0.215 & 0.003 & 2.198 & 0.009 & $-$0.168 & 0.005 \\
3~246.163 & 1.3 & 0.133 & 0.013 & 2.148 & 0.035 & $-$0.142 & 0.026 \\
3~248.138* & 1.5 & 0.172 & 0.004 & 2.054 & 0.013 & $-$0.114 & 0.007 \\
3~254.125 & 0.9 & 0.156 & 0.004 & 2.139 & 0.013 & $-$0.160 & 0.007 \\
3~256.135 & 1.0 & 0.188 & 0.001 & 2.181 & 0.005 & $-$0.173 & 0.003 \\
3~261.115 & 1.5 & 0.203 & 0.011 & 2.153 & 0.029 & $-$0.178 & 0.017 \\
3~271.109 & 1.3 & 0.191 & 0.005 & 2.167 & 0.014 & $-$0.183 & 0.009 \\
3~273.103 & 1.2 & 0.163 & 0.007 & 2.117 & 0.020 & $-$0.176 & 0.013 \\
3~277.104 & 1.0 & 0.190 & 0.004 & 2.179 & 0.014 & $-$0.191 & 0.007 \\
3~281.106 & 1.4 & 0.146 & 0.006 & 2.151 & 0.016 & $-$0.167 & 0.011 \\
3~283.100 & 1.2 & 0.146 & 0.004 & 2.129 & 0.012 & $-$0.164 & 0.008 \\
3~430.540 & 0.9 & 0.167 & 0.002 & 2.078 & 0.009 & $-$0.135 & 0.003 \\
3~434.546 & 0.8 & 0.175 & 0.007 & 2.088 & 0.019 & $-$0.143 & 0.009 \\
3~461.499 & 0.9 & 0.166 & 0.003 & 2.138 & 0.009 & $-$0.150 & 0.005 \\
3~475.491 & 0.9 & 0.175 & 0.004 & 2.120 & 0.012 & $-$0.179 & 0.008 \\
3~482.443 & 1.1 & 0.177 & 0.002 & 2.124 & 0.011 & $-$0.149 & 0.004 \\
3~500.415 & 1.3 & 0.206 & 0.004 & 2.147 & 0.011 & $-$0.168 & 0.008 \\
3~507.348 & 1.0 & 0.177 & 0.005 & 2.106 & 0.012 & $-$0.153 & 0.009 \\
3~508.403* & 0.9 & 0.199 & 0.003 & 2.222 & 0.009 & $-$0.171 & 0.006 \\
3~511.303 & 1.0 & 0.172 & 0.007 & 2.153 & 0.018 & $-$0.151 & 0.012 \\
3~517.383 & 0.8 & 0.163 & 0.004 & 2.146 & 0.012 & $-$0.168 & 0.007 \\
3~524.391 & 0.9 & 0.194 & 0.002 & 2.118 & 0.006 & $-$0.183 & 0.003 \\
3~533.412* & 1.6 & 0.193 & 0.002 & 2.002 & 0.007 & $-$0.171 & 0.004 \\
3~540.345 & 1.0 & 0.194 & 0.003 & 2.124 & 0.011 & $-$0.168 & 0.006 \\
3~542.323 & 1.1 & 0.172 & 0.007 & 2.132 & 0.020 & $-$0.194 & 0.014 \\
3~552.291 & 0.9 & 0.201 & 0.001 & 2.149 & 0.005 & $-$0.179 & 0.001 \\
3~556.295 & 0.9 & 0.204 & 0.003 & 2.185 & 0.008 & $-$0.176 & 0.005 \\
3~559.280 & 1.0 & 0.181 & 0.002 & 2.134 & 0.007 & $-$0.160 & 0.004 \\
3~564.295* & 1.3 & 0.228 & 0.001 & 2.300 & 0.007 & $-$0.167 & 0.003 \\
3~570.247 & 1.0 & 0.192 & 0.005 & 2.094 & 0.015 & $-$0.165 & 0.010 \\
3~575.323 & 1.3 & 0.198 & 0.010 & 2.084 & 0.026 & $-$0.172 & 0.019 \\
3~576.264 & 1.0 & 0.211 & 0.001 & 2.195 & 0.008 & $-$0.181 & 0.002 \\
3~578.275 & 1.2 & 0.189 & 0.002 & 2.133 & 0.007 & $-$0.177 & 0.003 \\
3~581.284 & 1.2 & 0.190 & 0.005 & 2.176 & 0.012 & $-$0.188 & 0.009 \\
3~611.225 & 1.2 & 0.188 & 0.003 & 2.161 & 0.008 & $-$0.165 & 0.005 \\
3~613.201 & 1.5 & 0.175 & 0.007 & 2.156 & 0.018 & $-$0.180 & 0.013 \\
\hline
\end{tabular}
\end{table}