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谭瀚杰 XM30HT = AT 2021du 已知变星

Hanjie Tan, Guoyou Sun, Mi Zhang, Xing Gao (Xingming Observatory), report ~0.5 mag outburst in a known variable star ( 17.56 r ) which is 18.08 rmag in Pan-STARRS DR1 catalogue. The transient was discovered on several 120-s survey images ( limiting mag about 18.5 ) taken by Xing Gao at Xingming Observatory #3 ( N88 ) around Jan. 03.80527, 2021 UT using a unfiltered CCD ( 0.3-m f/3.6 reflector ). Images can be found at: http://xjltp.china-vo.org/xm30ht.html

XM30HT C2021 01 03.80527 05 53 57.51 +42 56 30.0 17.56 r N88
XM30HT C2021 01 03.82259 05 53 57.52 +42 56 29.9 17.49 r N88

*Known VS MGAB-V527

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