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谭瀚杰 XM89HT = TCP J04344971+3914578 * 变星 UG

Hanjie Tan (AUUK), Guoyou Sun, Mi Zhang, Jingyuan Zhao, Jiangao Ruan (Xingming Obs), Quanzhi Ye (UMd), Xing Gao (Xingming Obs), report a variable star candidate (G=18.30+-0.14). Nothing is visible at this position on PanSTARRS-1 Image. The source appears to correspond to object Gaia EDR3 178950606957413888 (G=18.77) in the Gaia EDR3. Discovery was made on several 60-s survey images (limiting mag about 19.0) taken by Xing Gao at Xingming Observatory #3 (N88) around 2021 Dec. 27.73674 UT using a unfiltered CCD (0.3-m f/3.6 reflector). Images can be found at: http://xjltp.china-vo.org/xm89ht.html

2021-12-27 17-40-24 20211227.73674 04 34 49.71 +39 14 57.8 18.30+-0.14G
2021-12-27 17-56-19 20211227.74779 04 34 49.80 +39 14 56.7 18.18+-0.14G

NET Gaia DR2
XM89HT C2021 12 28.62341 04 34 49.71 +39 14 56.7 18.35+-0.04G N88
XM89HT C2021 12 28.62723 04 34 49.72 +39 14 56.8 18.43+-0.04G N88

Follow-up image taken by N88 on 2021 Dec. 28.62341 UT PS Image

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