Light Curve and Fourier Transform of SDSS J090559.60+084324.9. Top: Phased-folded light curve for the new ZZ Ceti SDSS J090559.60+084324.9. The light curve was folded to the highest-amplitude pulsational period of about P = 377 s. The solid red line indicates a sinusoidal fit, depicted for a better visualisation of the variation. The ‘lined’ appearance in the folded light curve is attributed to the 337 s pulsation period being close to an alias of the cadence. Bottom: FT for the same star. The horizontal dashed red line indicates our detection limit, and the spectral window is depicted as an inset plot.