Qiang Yin and Xing Gao, report the discovery of a possible nova (mag approximately 18.2) on severl 300-s survey images (limiting mag about 21.0) taken by Xing Gao in Xingming Observatory Sky Survey(C42) around Oct. 10.60145 UT using a unfiltered CCD ( + 0.6-m f/8 Ritchey-Chretien telescope). The transient approximately located at R.A.=00h42m49.84s +41d23’35”.0 (equinox 2000.0). Which is about 62.2″ east and 446.5″ north of the center of the NGC224(M31). Nothing is visible at this position on archival images taken on Oct. 09.54888 UT(limiting mag 21.0).
NET UCAC-4
XM145QY C2018 10 10.60145 00 42 49.84 +41 23 35.0 18.20V C42
All images can be seen from: http://www.xjltp.com/XOSS/XM146QY/XM146QY.htm ,
C42,Xingming Observatory – NEXT, Mt. Nanshan. Observers Q.Yin,X.Gao,Measurers Q.Yin, 0.6-m f/8 Ritchey-Chretien telescope and CCD.
TNS Link：
https://www.wis-tns.org/object/2018hfs
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Discovery image taken by C42 on Oct. 10.60145 UT,2018
Archival images
PS images