THE OUTBURST IN A KNOWN VARIABLE STAR – XM17HT

Hanjie Tan and Xing Gao, report ~2.8 mag outburst in a known variable star ( 15.77 r ) which is 18.62 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 Sep. 02.72564 UT using a unfiltered CCD ( 0.3-m f/3.6 reflector ). Images can be found at: http://xjltp.china-vo.org/xm17ht.html

XM17HT C2020 12 02.72564 01 29 27.46 +65 11 48.2 15.77 r N88
XM17HT C2021 01 25.64547 01 29 27.41 +65 11 47.9 14.70 r N88
XM17HT C2021 01 25.66242 01 29 27.39 +65 11 47.8 14.69 r N88

*Known VS Dauban V269



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