Kilkenny, D.Khangale, Z. N.Woudt, P. A.2021-02-112021-02-112020Kilkenny, D. et al. (2020). A spectroscopic analysis of the eclipsing nova-like EC 21178−5417 – discovery of spiral density structures. Monthly Notices of the Royal Astronomical Society, 495(1), 637–6491365-2966https://doi.org/10.1093/mnras/staa680http://hdl.handle.net/10566/5900We present phase-resolved optical spectroscopy of the eclipsing nova-like cataclysmic variable EC 21178−5417 obtained between 2002 and 2013. The average spectrum of EC 21178−5417 shows broad double-peaked emission lines from He II 4686 Å (strongest feature) and the Balmer series. The high-excitation feature, C III/N III at 4640–4650 Å, is also present and appears broad in emission. A number of other lines, mostly He I, are clearly present in absorption and/or emission.enAccretionAccretion discsBinaries: closeStars: individual: EC 21178−5417Cataclysmic variablesArticle