Top left: cut out portion of our image centred on NGC 5457-DGSAT-1. Top right: our GALFIT model (see Table 3 for the results of the modelling). Bottom left: residual image obtained by subtracting the model image from the main image. Bottom right: same field from SDSS for comparison. In both of the bottom images, the red arrow points to USNO-A2.0 1425-08068454 and the yellow arrow points to an uncatalogued point source. The comparison of these two images with the main image (top left) helps to better see NGC 5457-DGSAT-1.