Illustration of the measurement of the magnetopause standoff distance in our simulations. The black circle corresponds to the planet. The standoff distance is the radial distance (white line) to the projection of the last closed magnetic field of the planet (in red) on the line connecting the star and the planet (in blue). The simulation depicted here corresponds to a super-Alfvénic case, where the inclination of the magnetic axis of the planet with respect to the ecliptic is 30° (purple line) and B_p = 0.32 G.