HW Boo outburst Rapidly fading bright outburst. Possible precursor? YYYYMMDD(UT) mag observer 20230412.6022 <162c (Yutaka Maeda) 20230413.269 17.43V (Gary Poyner) 20230413.9139 <141 (Eddy Muyllaert) 20230415.6488 135c (Yutaka Maeda) 20230415.9229 <141 (Eddy Muyllaert) 20230415.9264 <137 (Jose Ripero) 20230416.5672 145:cG (Yutaka Maeda) 20230416.9222 <141 (Eddy Muyllaert) 20230416.9319 <141 (Jose Ripero) 20230417.038 15.12C (Gary Poyner)