MM Hya superoutburst YYYYMMDD(UT) mag observer 20190122.5640 <145c (Yutaka Maeda) 20190123.5751 <146c (Yutaka Maeda) 20190126.5718 141cG (Yutaka Maeda) 20190127.5541 136cG (Yutaka Maeda) 20190128.532 136 (Rod Stubbings)