Line diagnostics for two regions of NGC 5077: the Hα blob to the north-east and the X-ray point source west of the nucleus. Left panel: regions studied, superimposed on the Hα flux map of Fig. 4. The red square indicates the Hα blob and the cyan circle the X-ray point source. The lines and labels in the central and right panels are similar to those in Fig. 10. The Hα emission region matches the line ratios expected for a star-forming region, while the X-ray point source matches AGN excitation conditions.