Xiyu Chen, Wenjie Zhou, Leiming Tang, Mi Zhang, Guoyou Sun, Jianlin Xu, Yanxi Li, Jiangao Ruan, Jingyuan Zhao, Yi Ding, Xing Gao (Xingming Obs), report the discovery of a variable star candidate (16.8 G). The source appears to correspond to object Gaia EDR3 203354301899547136 (G=15.79) in the Gaia EDR3. Discovery was made on one 30-s survey image (limiting mag about 19.0) taken by Xing Gao around 2021 Dec. 04.83356 UT at Xingming Observatory #2 (N89) using a unfiltered CCD (0.5-m f/4 reflector). Images can be found at: http://xjltp.china-vo.org/psp21ak.html
NET Gaia DR2
PSP21ak C2021 09 05.90602 04 45 57.36 +41 27 31.7 15.5 G N89
PSP21ak C2021 09 08.87317 04 45 57.34 +41 27 32.2 15.6 G N89
PSP21ak C2021 10 16.81227 04 45 57.39 +41 27 32.0 15.6 G N89
PSP21ak C2021 10 27.98646 04 45 57.07 +41 27 32.0 15.5 G N89
PSP21ak C2021 10 28.95979 04 45 57.23 +41 27 31.6 15.6 G N89
PSP21ak C2021 11 01.94095 04 45 57.08 +41 27 31.9 15.6 G N89
PSP21ak C2021 11 09.92054 04 45 57.12 +41 27 32.3 16.7 G N89
PSP21ak C2021 12 04.83356 04 45 57.35 +41 27 32.5 16.8 G N89
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| Discovery image taken by N89 around 2021 Dec. 04.83356 UT | Archival image taken by N89 around 2021 Sep. 05.90602 UT | PS image |
Gaia EDR3 position. Type, period, epoch, eclipse duration and range from ZTF data.
