Evolution of the Hα line profiles in the nova spectrum from 68 to 93 days after outburst. All profiles are plotted in velocity space, corrected for the LMC velocity (278 km s⁻¹; O. G. Richter et al. 1987). The vertical dashed black line marks the zero velocity. A discrete absorption feature is highlighted by a shaded region, centered at approximately +300 km s⁻¹ and marked by a vertical dashed blue line, corresponding to the disappearance of the redward part of the profile near the onset of the photometric minimum.