  We obtained spectra of ASASSN-V J205543.90+240033.5 (J2055), a system that
shows photometric variations similar to the white dwarf (WD) pulsar AR Scorpii
(Kato et al. arXiv:2109.03979). Our spectra display a continuum rising steeply
toward the blue as well as an array of emission lines. Resolved Balmer and
Paschen lines are seen with H$\alpha$ and H$\beta$ having central absorption
features. The strongest lines are unresolved CII, CIII, and NIII as well as
doubly ionized helium. The spectra are similar to that of YY Hya (Kimeswenger
et al. arXiv:2110.03935), and suggest that J2055 is a post-common envelope
binary consisting of a hot compact star irradiating the face of a secondary of
unknown spectral type. Velocity variations detected from the emission lines
confirm the binary nature of J2055. The origin of the 10 minute photometric
variation remains uncertain.
