Jiangao Ruan, Mi Zhang, Xing Gao (Xingming Obs), report the discovery of a possible nova (mag approximately 18.9) on several 300-s survey image (limiting mag about 19.5) taken by Xing Gao at Xingming Observatory #3 (N88) around Nov. 20.58753 UTC using a unfiltered CCD (+ 0.6-m f/8 Ritchey-Chretien telescope). The transient approximately located at R.A.=00h42m07.60s +41d09’12”.3 (equinox 2000.0). Which is about 414.0″ west and 416.2″ south of the center of the NGC224(M31). Nothing is visible at this position on archival images taken on Nov. 18.70709 (limiting mag 19.5) . Images can be found at: http://xjltp.china-vo.org/xn04jr.html
NET Gaia DR2
XN04JR C2021 11 20.58753 00 42 07.60 +41 09 12.3 18.9 G N88
XN04JR C2021 11 20.59128 00 42 07.56 +41 09 11.3 18.7 G N88
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| Discovery image taken by N88 around 2021 Nov. 20.58753 UT | Archival image taken by N88 around 2021 Nov. 18.70709 UT | PS image |