Photometric data (grade A only) from the ASAS-3 catalogue for HE 0017+0055 = ASAS 002022+0112.1, folded on the 383 d period inferred from the radial-velocity variations. The span of the ordinate axis has been set to eliminate outlying data points. The red curve with error bars corresponds to the average values of the V magnitude in bins of width 0.1 in phase, after eliminating outlying points (i.e. those outside the graphical window). The error bars along that curve correspond to the error on the mean, i.e. the standard dispersion in the considered bin divided by , where N is the number of data points in the bin.