Upper row: observations of G031.03+00.76 taken at (left-right) Spitzer 8 μm (with 250 μm contours), PACS 70 and 160 μm and SPIRE 250, 350 and 500 μm. Lower row: model output for G031.03+00.76 at (left-right) 8 and 70 μm (example background only – showing core in absorption in middle) and 160, 250, 350 and 500 μm (in emission). Overlaid contours correspond to the observed data.