Composite three-color image showing the Herschel/SPIRE intensities for the region considered, where available (with the 250 μm, 350 μm, and 500 μm bands shown in blue, green, and red). For regions outside the Herschel coverage, we used the Planck/IRAS dust model (τ₈₅₀,T,β) to predict the intensity that would be observed at the SPIRE passbands. Note that the transition from Herschel to Planck is only visible because of the different resolution, and that otherwise there is no obvious discontinuity in the intensities.