Hanjie Tan, Guoyou Sun, Mi Zhang, Jingyuan Zhao, Xing Gao (Xingming Observatory), report the outburst in a variable star candidate (16.93 r). Nothing is visible at this position on Pan-STARRS images. The transient was discovered on several 120-s survey images (limiting mag about 19.0) taken by Xing Gao at Xingming Observatory #3 (N88) around Feb. 28.93343, 2021 UT using a unfiltered CCD (0.3-m f/3.6 reflector). Images can be found at: http://xjltp.china-vo.org/xm55ht.html
XM55HT C2021 02 28.93343 20 07 59.98 +47 34 22.7 16.93 r N88
2021dzs 2021 03 02.88120 16.12 r N88
2021dzs 2021 03 02.88887 16.00 g N88
2021dzs 2021 03 02.89265 16.24 i N88
2021dzs 2021 03 04.96671 16.32 r N88
2021dzs 2021 03 04.97428 16.22 g N88
2021dzs 2021 03 04.98174 16.42 i N88
2021dzs 2021 03 05.87631 16.37 r N88
2021dzs 2021 03 06.97883 16.49 r N88
2021dzs 2021 03 06.98641 16.34 g N88
2021dzs 2021 03 06.99389 16.60 i N88
2021dzs 2021 03 07.95760 16.57 r N88
2021dzs 2021 03 07.96517 16.49 g N88
2021dzs 2021 03 07.99389 16.71 i N88
2021dzs 2021 03 09.93681 16.72 r N88
2021dzs 2021 03 09.94437 16.70 g N88
2021dzs 2021 03 09.95181 16.80 i N88
2021dzs 2021 03 10.93683 16.85 r N88
2021dzs 2021 03 10.94440 16.79 g N88
2021dzs 2021 03 10.95183 16.93 i N88
2021dzs 2021 03 18.92737 17.04 r N88
2021dzs 2021 03 18.93491 16.95 g N88
2021dzs 2021 03 18.94230 17.22 i N88
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| r-band image taken by N88 on Mar. 02.88120 UTC,2021 | g-band image taken by N88 on Mar. 02.88887 UTC,2021 | i-band image taken by N88 on Mar. 02.89265 UTC,2021 | PS Image |