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THE OUTBURST IN A KNOWN VARIABLE STAR – XM61HT

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 ~4.9 mag outburst in a known variable star ( 15.87 r ) which is 20.74 rmag in Pan-STARRS DR1 catalogue. The transient was discovered on several 120-s survey images ( limiting mag about 18.0 ) taken by Xing Gao at Xingming Observatory #3 ( N88 ) around Mar. 18.85420, 2021 UT using a unfiltered CCD ( 0.3-m f/3.6 reflector ). Images can be found at: http://xjltp.china-vo.org/xm61ht.html

XM61HT C2021 03 18.85420 19 11 22.39 +33 50 44.0 15.87 r N88

*Known VS ASASSN-15qf

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