Left: composite image of the NGC 5291 collisional ring. Background is a FORS composite colour image obtained with the V,R, and I bands. HI data from the VLA is superimposed in blue. North is up and east left. The white square centred on NGC 5291N delineates the MUSE field of view. Upper right: FORS V,R,I composite colour image of the MUSE target. Lower right: MUSE composite colour image using three different emission lines: Red: [NII]λ6583, Green: Hα, Blue: [OIII]λ5007. Each pixel covers a 60 pc × 60 pc region, and the full image corresponds to 1′×1′, or about 18 kpc × 18 kpc at the distance of NGC 5291N, 63.1 Mpc.