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POSSIBLE NOVA IN M31 – XM55MZ

Mi Zhang, Xing Gao (Xingming Observatory), report the discovery of a possible nova (mag approximately 17.1 CV) on several 30-s survey image (limiting mag about 19.0) taken by Xing Gao at Xingming Observatory #2 (N89) around Jul. 04.81404 UTC using a unfiltered CCD (0.5-m f/4 reflector). The transient approximately located at R.A.=00h42m47.20s +41d18’17”.5 (equinox 2000.0). Which is about 32.5″ east and 129″ north of the center of the NGC224(M31). Nothing is visible at this position on archival images taken on Jul. 02.75912 (limiting mag 19.0). Images can be found at: http://xjltp.china-vo.org/xm55mz.html

Discovery image taken by N89 on Jul. 04.81404 UTC,2021 Archival image taken by N89 on Jul. 02.75912 UTC,2021 PS Image

 

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