Zhijian Xu and Xing Gao, report the discovery of a possible nova (mag approximately 18.5) on severl 300-s survey images (limiting mag about 20.5) taken by Xing Gao in Xingming Observatory Sky Survey(C42) around Oct. 26.57558 UT using a unfiltered CCD ( + 0.6-m f/8 Ritchey-Chretien telescope). The transient approximately located at R.A.=00h42m54.96s +41d12’28”.8 (equinox 2000.0). Which is about 120.0″ east and 219.7″ south of the center of the NGC224(M31). Nothing is visible at this position on archival images taken on Oct. 13.76541 UT(limiting mag 21.0).
NET UCAC-4
XMr6ZX C2018 10 26.57558 00 42 54.96 +41 12 28.8 18.5V C42,All images can be seen from: http://www.xjltp.com/XOSS/XMr6ZX/XMr6ZX.htm , C42,Xingming Observatory – NEXT, Mt. Nanshan. Observers Z.Xu,X.Gao,Measurers Z.Xu, 0.6-m f/8 Ritchey-Chretien telescope and CCD.
TNS Link：
https://www.wis-tns.org/object/2018hoo
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Discovery image taken by C42 on Oct. 10.60145 UT,2018
Archival images
PS images