ASASSN-17gf outburst SU UMa-type dwarf nova. Superoutburst in 2017 May. Gaia detection: Gaia18crr AT2018gqy 2018-09-18 07:40:43 147.88996 -61.31095 13.80 16.63 1.68 CV 2018-09-19 11:38:43 4 mag outburst of CV ASASSN-17gf