Spectral variations between R71’s quiescent state in 2002 July (bottom spectrum) and its eruptive state in 2012 November (top spectrum). The 2002 UVES spectrum shows strong [Fe ii] emission. Hβ has a P Cyg profile, while higher Balmer lines and He i lines appear only in absorption. The 2012 X-shooter spectrum is dominated by strong metal absorption lines. (The continuum is normalized to unity. The wavelength region λλ4500–4750 Å is not displayed because of a gap in wavelength between the UVES blue and red settings.)