Profile of the mean B-field orientation in the direction of the right ascension (|〈θ_B〉|_RA) as a function of angular offsets along the direction of the declination (θ_dec) from the HMC position. The dotted red line represents the location of the HMC. Each average B-field orientation was computed by taking the angle average in the RA direction at each declination position. The shaded region represents the dispersion of the B-field orientation.