Mi Zhang and Xing Gao, report the discovery of a possible nova (mag approximately 18.4) on a 90-s survey image (limiting mag about 20.0) taken by Xing Gao at Xingming Observatory #3 (N88) around Sep. 22.90595 UTC using a r'(Sloan) filtered CCD (+ 0.6-m f/8 Ritchey-Chretien telescope). Confirmation was made on several 90-s survey images (limiting mag about 20.0) around Sep. 23.78 UTC using a unfiltered CCD (+ 0.6-m f/8 Ritchey-Chretien telescope). The transient approximately located at R.A.=04h29m16.44s +50d26’22”.6 (equinox 2000.0). Nothing is visible at this position on PanSTARRS-DR1. Images can be found at: http://xjltp.china-vo.org/xm34mz.html
NET Gaia DR2
XM34MZ C2020 09 22.90595 04 29 16.44 +50 26 22.6 18.4 G N88
XM34MZ C2020 09 23.77546 04 29 16.43 +50 26 22.5 18.5 G N88
XM34MZ C2020 09 23.77679 04 29 16.43 +50 26 22.6 18.5 G N88