Images of the centre of Eridanus 2, shown at the same scale. Left: image of public HST data, cut to the same size as our MUSE observations. The sources inside the green circle are possible members of the putative star cluster. Right: composite colour image of the same area seen with MUSE, using Cousins R, Johnson V, and Johnson B filters for red, green, and blue, respectively. The angular and physical scales are indicated, as are north and west.