Slit positions of X-shooter. The slit is represented by a box of a size of 11″ × 12 and at PA = 13°. Positions corresponding to individual exposures are shown with green thin lines and their average position is shown with the red thick line. The background images are all in scale and coaligned. Left: average X-shooter acquisition image in R band. Right: image of the nebula in the Hα filter from Hajduk et al. (2013) with most point sources removed.