Guoyou Sun(Wenzhou, Zhejiang, China) and Xing Gao (Urumqi, Xinjiang, China)report the discovery of a possible supernova (mag approximately 17.9) on several 40-s survey images (limiting mag about 19.0)taken by Xing Gao in Xingming Observatory Sky Survey(C42) around Oct 26.64963 UT using a unfiltered CCD ( + Celestron C14 Schmidt-Cassegrain telescope D=356-mm @f/6.9 ). The new object approximately located at R.A.=18h32m22s.32 Decl.=+66<53'46".6 (equinox 2000.0).Which is about 19.2" west and 3.6" north of the center of the PGC 2692384. Nothing is visible at this position on archival images taken on Oct.15 (limiting mag 19) and on the DSS(POSS2/UKSTU Red) from May. 19,1991(limiting mag about 19.8).


XM03GS C2011 10 26.64963 18 32 22.32 +66 53 46.6 17.9 V C42

All images can be seen from: http://www.xjltp.com/XOSS/XM03GS/XM03GS.htm

C42 Xingming Observatory, Mt. Nanshan. Observers G.Sun,X.Gao ,Measurers G.Sun. 0.356-m f/6.9 Schmidt-Cassegrain telescope and CCD.




 Discovery image taken by C42 on Oct.16.65 UT,2011LM=19.0,40S                     90S

             DSS IMAGE


archival image taken on Oct. 15