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THE OUTBURST IN A VARIABLE STAR CANDIDATE – XM72HT

Hanjie Tan (Institute of Astronomy, National Central University), Mi Zhang, Guoyou Sun, Jingyuan Zhao (Xingming Observatory), Quanzhi Ye (Department of Astronomy, University of Maryland), Xing Gao (Xingming Observatory), report ~0.3 mag outburst in a variable star candidate (G=15.72+-0.04). The source appears to correspond to object Gaia DR2 2166160025533404800 (G=16.03) in the Gaia DR2. Discovery was made on several 120-s survey images (limiting mag about 18.0) taken by Xing Gao at Xingming Observatory #3 (N88) around Sep. 24.80773, 2021 UT using a unfiltered CCD (0.3-m f/3.6 reflector). Images can be found at: http://xjltp.china-vo.org/xm72ht.html

XM72HT C2021 09 24.80773 21 15 08.45 +50 44 46.7 15.72 G N88

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