VSNET CV Circular 2012.4 (JD 0d = 2456018) edited by T. Ohshima Dwarf Novae EM Cyg (UGZ) 136(1) PSD RZ LMi (UGSU(ER)) 153(1) PSD ER UMa (UGSU(ER)) 153(1) PSD VW Vul (UGZ) 154(1) PSD Other Cataclysmic and Peculiar Objects CH Cyg (ZAND+E:) 73(1) PSD Key to observers PSD Stefano Padovan