Magnetic map obtained after grouping all data together (top). The three charts illustrate the radial, azimuthal and meridional components of the local magnetic vector. The field strength is expressed in gauss. The bottom map is obtained from the full data set, but limiting the spherical harmonics expansion to ℓ_max = 1. Note that the latitudinal extent of the maps is limited to the visible fraction of the stellar surface (at an inclination angle of 6.4°).