Central Bureau for Astronomical Telegrams

CBAT "Transient Object Followup Reports"

PNV J00420058+4108483

PNV J00420058+4108483   2021 07 24.8772*  00 42 00.58 +41 08 48.3  20.1CV  493W 440S  M31       R 9

2021 07 24.8772

Mi Zhang, Xing Gao (Xingming Observatory), report the discovery of a possible nova (mag approximately 20.1 on several 300-s survey image (limiting mag about 20.5) taken by Xing Gao at Xingming Observatory #3 (N88) around July. 24.90322 UTC using a unfiltered CCD (+ 0.6-m f/8 Ritchey-Chretien telescope). The transient approximately located at R.A.=00h42m00.58s +41d08’48”.3 (equinox 2000.0). Which is about 493.2" west and 440.2" south of the center of the NGC224(M31). Nothing is visible at this position on archival images taken on July. 17.81882 (limiting mag 20.5) . Images can be found at: http://xjltp.china-vo.org/xm57mz.html