POSSIBLE NOVA IN M31 – XM35MZ

Mi Zhang and Xing Gao, report the discovery of a possible nova (mag approximately 17.2) on a 300-s survey image (limiting mag about 19.5) taken by Xing Gao at Xingming Observatory #3 (N88) around Sep. 24.70146 UTC using a unfiltered CCD (+ 0.6-m f/8 Ritchey-Chretien telescope). Confirmation was made by Zhuoxiao Wang on Sep. 24.75902 UTC using a CMOS with L filter (+ 0.2-m f/6.4 RC telescope ). The transient approximately located at R.A.=00h42m46.30s +41d13’35”.5 (equinox 2000.0). Which is about 22.4″ east and 153″ south of the center of the NGC224(M31). Nothing is visible at this position on archival images taken on Sep. 23.78736 (limiting mag 21.5) . Images can be found at: http://xjltp.china-vo.org/xm35mz.html

NET Gaia DR2
XM35MZ C2020 09 24.70146 00 42 46.30 +41 13 35.5 17.2 G N88
XM35MZ C2020 09 29.85657 00 42 46.26 +41 13 35.3 18.1 G N88
XM35MZ C2020 09 29.87784 00 42 46.26 +41 13 35.4 18.1 G N88
XM35MZ C2020 09 30.62062 00 42 46.23 +41 13 34.7 18.3 G N88
XM35MZ C2020 09 30.62440 00 42 46.23 +41 13 34.9 18.4 G N88
XM35MZ C2020 10 01.62524 00 42 46.26 +41 13 35.5 18.4 G N88
XM35MZ C2020 10 01.62898 00 42 46.26 +41 13 35.5 18.3 G N88
XM35MZ C2020 10 02.63066 00 42 46.26 +41 13 35.5 18.8 G N88
XM35MZ C2020 10 02.63442 00 42 46.27 +41 13 34.7 18.9 G N88
XM35MZ C2020 10 05.57144 00 42 46.26 +41 13 35.6 19.3 G N88
XM35MZ C2020 10 05.57522 00 42 46.25 +41 13 35.3 19.0 G N88
XM35MZ C2020 10 07.65027 00 42 46.26 +41 13 35.5 19.4 G N88
XM35MZ C2020 10 07.65402 00 42 46.27 +41 13 35.5 19.4 G N88
XM35MZ C2020 10 08.70795 00 42 46.23 +41 13 35.1 19.5 G N88
XM35MZ C2020 10 08.71172 00 42 46.27 +41 13 35.6 19.3 G N88
XM35MZ C2020 10 10.74074 00 42 45.85 +41 14 42.2 18.7 G N88
XM35MZ C2020 10 10.74449 00 42 45.86 +41 14 42.1 18.7 G N88

Discovery image taken by N88 on Sep. 24.70146 UTC,2020 Confirm image taken by Zhuoxiao Wang on Sep. 24.75902 UTC,2020
Archival image taken by N88 on Sep. 23.78736 UTC,2020 PS image

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