KUV 01584-0939: A Helium-transferring Cataclysmic Variable with an   Orbital Period of 10 Minutes
  High speed photometry of KUV 01584-0939 (alias Cet3) shows that is has a period of 620.26 s. Combined with its hydrogen-deficient spectrum, this implies that it is an AM CVn star. The optical modulation is probably a superhump, in which case the orbital period will be slightly shorter than what we have observed. 
Brian Warner (Univ. of Cape Town) and Patrick A. Woudt (Univ. of Cape   Town)