POSSIBLE NOVA IN M33Jiangao Ruan(Fangchenggang, Guangxi, China) and Xing Gao (Urumqi, Xinjiang, China)，report the discovery of a possible nova (mag approximately 18.6) on several 60-s survey images (limiting mag about 19.5) taken by Xing Gao in Xingming Observatory Sky Survey(C42) around Nov. 27.52970 UT using a unfilled CCD ( + Celestron C14 Schmidt-Cassegrain telescope D=356-mm @f/6.9 ). the new object approximately located at R.A.=01h33m27s.59 Decl.=+30°17’28”.7 (equinox 2000.0). Nothing is visible at this position on archival images taken on Nov. 25 (limiting mag 19.5) and Nov.26(limiting mag 19.5) or on the DSS(POSS-II N) from 1989-12-04 (limiting red mag 20.8).
All images can be seen from: http://www.xjltp.com/XOSS/XM10BH/XM10BH.htm
NET USNO-B1.0
XM10BH C2010 11 27.52970 01 33 27.59 +30 17 28.7 18.6 V C42
C42 Xingming Observatory, Mt. Nanshan. Observers J.Ruan,X.Gao ,Measurers J.Ruan. 0.36-m f/6.9 Schmidt-Cassegrain telescope and CCD.
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Discovery image taken by C42 on Nov. 27.52970（LM=19.5,60S） taken on Nov.27.58919(120S)
DSS IMAGE RED(LM=20.8)
archival images taken on Nov.25 Nov.26