The geometry adopted for HD 133880. The vertical axis is the rotation axis of the star. The angle between the line of sight and the rotation axis is i= 55°. The angle between the rotation axis and the magnetic field axis is β= 78°. The left-hand panel depicts an orientation where the positive magnetic pole is closest to the line of sight (φ= 0.537) and the right-hand panel is when the negative magnetic pole is nearer alignment with the line of sight (φ= 0.037). The bands used for dividing the abundance distribution are shown as solid lines and are normal to the magnetic field axis.