POSSIBLE NOVA IN M31

Shenwei Zhang,Jingyuan Zhao,Di Hu,Xiaowei Zhang,Wei Shi,Guoyou Sun and Xing Gao, report the discovery of a possible nova (mag approximately 18.6) on several 40s survey images (limiting mag about 19.5) taken by Xing Gao in Xingming Observatory Sky Survey(C42) around Sep 07.77510 UT using a unfiltered CCD ( + Celestron C14 Schmidt-Cassegrain telescope D=356mm @f/6.9 ). the new object approximately located at R.A.=00h44m08s.72 Decl.=+41 43 36.7 (equinox 2000.0). Which is about 951.6" east and 1648.2" north of the center of the NGC224(M31). Nothing is visible at this position on archival images taken on Aug 15.7 (limiting mag 19.5) and on the DSS(POSS2/UKSTU Red) from Nov 27,1986(limiting mag about 19.8).

NET
UCAC-4
  PSP17C C2017 09 01.77510 00 44 08.72 +41 43 36.7 18.6 V C42

All images can be seen from: http://www.xjltp.com/XOSS/PSP17C/PSP17C.htm
C42 Xingming Observatory, Mt. Nanshan. Observers S.
Zhang,J.Zhao,D.Hu,X.Zhang,W.Shi, G.Sun, X.Gao , Measurer G.Sun. 0.36-m f/6.9 Schmidt-Cassegrain telescope and CCD. 

--------------------------

Discovery image taken by C42 on Sep.09.77510 UT,2017

Confirm image taken by C42 on Sep.03.70603 UT,2017

DSS image

Archival images taken by C42 on Aug.15 UT,2017