GY Cnc in outburst The eclipsing UGSS type dwarf nova GY Cnc is undergoing an outburst. We have received observations of an eclipse from K. Nakajima. With the minimum obtained from this data and the orbital period given in Kato et al. (PASJ 54,1023), the forecast of eclipsing is following; HJDmin = 2454497.1533+0.17544251*n