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POSSIBLE NOVA IN M31 – PSP21H

Mi Zhang, Chunpeng Bi, Shuai Huang, Xing Gao (Xingming Observatory), report the discovery of a possible nova (mag approximately 17.0 on several 300-s survey image (limiting mag about 20.5) taken by Xing Gao at Xingming Observatory #3 (N88) around Sep. 11.60153 UTC using a unfiltered CCD (+ 0.6-m f/8 Ritchey-Chretien telescope). The transient approximately located at R.A.=00h42m42.97s +41d17’57”.4 (equinox 2000.0). Which is about 15.2″ west and 108.9″ north of the center of the NGC224(M31). Nothing is visible at this position on archival images taken on Sep. 08.94443 (limiting mag 20.5) . Images can be found at: http://xjltp.china-vo.org/psp21h.html

NET Gaia DR2
PSP21H C2021 09 11.60153 00 42 42.97 +41 17 57.4 17.0 G N88
PSP21H C2021 09 11.60525 00 42 42.99 +41 17 57.3 17.0 G N88

Discovery image taken by N88 on Sep. 11.60153 UTC,2021 Archival image taken by N88 on Sep. 08.94443 UTC,2021 PS Image

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