Average of three SDSS spectra of J0846, including one obtained during the K2 observation, showing very strong He II λ4686 emission and single-peaked emission lines. Both are commonly observed features in spectra of polars. Overall, this spectrum is similar to the one reported in Szkody et al. (2006), except that He I emission is more pronounced here. The absorption feature near 5200 Å is attributable to MgH from the secondary. As discussed in Section 3.5, we estimate the secondary’s spectral type to be between K5 and M0, with K7 being the most likely classification.