HW Boo superhump period Tonny Vanmunster, Itoh-san and Kiyota-san have reported observations. stage A: 0.0639(3) d since Feb. 4 stage B: 0.06236(4) d since Feb. 5 The early development of ordinary superhumps excludes a WZ Sge-type object. The published orbital period 0.06435 d is probably in error.