MASTER OT J085854.16-274030.7 outburst Relatively rare outburst. YYYYMMDD(UT) mag observer 20211104.7833 <142c (Yutaka Maeda) 20211106.7903 <141c (Yutaka Maeda) 20211114.7974 <136c (Yutaka Maeda) 20211116.7767 <137c (Yutaka Maeda) 20211118.8015 <143c (Yutaka Maeda) 20211119.8017 141:cG (Yutaka Maeda)