Hanjie Tan (Institute of Astronomy, National Central University), Mi Zhang, Guoyou Sun, Jingyuan Zhao (Xingming Observatory), Quanzhi Ye , Xing Gao (Xingming Observatory), report ~4 mag outburst in a known variable star ( 16.38 r ) which is 19.63 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. 13.73978, 2021 UT using a unfiltered CCD ( 0.3-m f/3.6 reflector ). Images can be found at: http://xjltp.china-vo.org/xm60ht.html
XM60HT C2021 03 13.73978 06 51 59.58 +34 26 44.7 16.38 r N88
*Known VS ASASSN-16ap
