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THE DISCOVERY OF A VARIABLE STAR CANDIDATE – PSP21S

Fei Du, Jiangao Ruan, Mi Zhang, Xing Gao (Xingming Observatory), report the discovery of a variable star candidate (18.10 G). The source appears to correspond to object Gaia DR2 2259975232394205056 (G=19.65) in the Gaia DR2. Discovery was made on one 30-s survey image (limiting mag about 19.0) taken by Xing Gao around 2021 Oct. 13.58934 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/psp21s.html

NET Gaia DR2
PSP21S   C2021 09 23.71617 18 11 41.09 +69 03 51.6          18.8 G      N89
PSP21S   C2021 09 26.71661 18 11 41.06 +69 03 51.1       >19.0 G      N89
PSP21S   C2021 09 27.69059 18 11 41.06 +69 03 51.3          17.7 G      N89
PSP21S   C2021 10 10.60787 18 11 41.05 +69 03 51.2          17.8 G      N89
PSP21S   C2021 10 13.58934 18 11 41.09 +69 03 51.5          18.1 G      N89

Discovery image taken around 2021 Oct. 13.58934 UT at N89 Archival image taken around 2021 Sep. 26.71661 UT at N89 PS Image

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