RAT J195327.17+185914.4 outburst Gaia detection. SU UMa-type candidate. Gaia18dbx AT2018hmd 2018-10-18 03:03:00 298.36311 18.98726 15.59 19.55 0.29 CV 2018-10-19 10:27:52 known CV RAT J1953+1859 brightens by 4 mag