25 NAC images from a sequence acquired on 12 April 2015 from a distance of 149 km and a sub-spacecraft latitude of –48°. The sequence shows the diurnal variation of activity over a full period. Each view is separated from the previous one by about 30 min (15° of nucleus rotation). There is a four-hour gap between the last two observations. The Sun and the comet’s north pole are pointing up in these images. Brightness levels are stretched linearly to emphasize the 5% least bright pixel values.