Templates and full-sky template fitting model (see Sect. 4.1). Top left: the Haslam et al. (1982) 408 MHz map. Top middle: the Finkbeiner (2003) Hα map. Top right: the Finkbeiner et al. (1999) dust prediction at the Planck 30 GHz channel. Middle left: the elliptical Gaussian haze template. Center: the elliptical Gaussian disk template. Middle right: the mask used in the fit. Bottom left: the best-fit template linear combination model at Planck 30 GHz. Bottom middle: the CMB-subtracted Planck data at 30 GHz. Bottom right: the Planck 30 GHz data minus the 30 GHz model with the haze template component added back into the map.