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We report observations of the known cataclysmic variable star (CV) V704 And,and also confirm that the optical counterpart of the ROSAT Galactic PlaneSurvey source RX J2338+431 is a heretofore-neglected CV. Photometric andspectroscopic observations from MDM Observatory show both systems to benovalike variables that exhibit dips of 4-5 magnitudes from their meanbrightnesses, establishing them as members of the VY~Scl subclass. Fromhigh-state emission-line radial velocities, we determine orbital periods of0.151424(3) d (3.63 hr) for V704 And and 0.130400(1) d (3.13 hr) for RXJ2338+431. In V704 And, we find that the H-alpha emission-line measures clusterinto distinct regions on a plot of equivalent width versus full width athalf-maximum, which evidently correspond to high, intermediate, and lowphotometric states. This allows us to assign spectra to photometric states whencontemporaneous photometry is not available, an apparently novel method thatmay be useful in studies of other novalikes. Our low-state spectra of RXJ2338+431 show features of an M-type secondary star, from which we estimate adistance of 890 +- 200 pc, in good agreement with the Gaia DR2 parallax.

An Optical Study of Two VY Sculptoris-Type Cataclysmic Binary Stars: V704 And and RX J2338+431