V589 Her superoutburst? The data may be somewhat noisy. YYYYMMDD(UT) mag observer 20190414.6918 <133c (Yutaka Maeda) 20190415.6994 <145c (Yutaka Maeda) 20190417.7007 158cG (Yutaka Maeda) 20190503.6090 156c (Yutaka Maeda) 20190505.6216 148cG (Yutaka Maeda) 20190506.6639 151:c (Yutaka Maeda)