Two-dimensional spectrum of V1425 Aql. The identified emission lines have been labelled. The spatial orientation is such that the y-axis goes from southwest to northeast at an angle of north to east. The zero point of the spatial axis has been set to the position of the stellar continuum at a wavelength of λ = 580 nm. The colour map is in units of 10⁻¹⁸ W m⁻². Its scale is logarithmic in order to show the details of faint and bright features simultaneously.