We have obtained differential time series photometry of the cataclysmic var
iable GS Pavonis over a timespan of 2 years. These show that this system is
deeply eclipsing (similar to 23.5 mag) with an orbital period of 3.72 hr.
The eclipse depth and out-of-eclipse light levels are correlated. From this
correlation we deduce that the disk radius is changing and that the eclips
es in the low state are total. The derived distance to GS Pav is 790+/-90 p
c, with a height above the galactic plane of 420+/-60 pc. We classify GS Pa
v as a novalike system.