Schematic vision of the evolution of the dust emission pattern of 41P along its orbit. The four inner planets in the solar system are also included. The configuration corresponds to the time of our last observation, that is, July 27, 2017. The two pairs of red crosses point out the changes in the emission pattern: first is from full isotropic to anisotropic during the inbound journey (February 24–March 14, 2017) and the second is from anisotropic to full isotropic during the outbound journey (June 7–28, 2017). The estimated start date of the activity (October 14, 2016) is marked with green dots, and perihelion (April 12, 2017) is marked with an orange triangle.