POSSIBLE SUPERNOVA IN UGC 11975

Zhangwei Jin(Ningbo, Zhejiang, China) and Xing Gao (Urumqi, Xinjiang, China), report the discovery of a possible supernova (mag approximately 16.8) on a 60-s survey image (limiting mag about 19.0)taken by Xing Gao in Xingming ObservationSky Survey(C42) around Sep. 15.76927 UT,2011. using a unfilled CCD ( + Celestron C14 Schmidt-Cassegrain telescope D=350-mm @f/6.9 ).the new object approximately located at R.A. =22h 17m 19s.52 Decl.=+35<34'50".0 (equinox 2000.0). Which is about 2.0" west and 34" north of the center of the UGC 11975.
Nothing is visible at this position on archival images taken on Aug. 24 (limiting mag 19.5) , or on the DSS(POSS2/UKSTU Red) from Sep. 26,1986(limiting mag about 19.8).
NET UCAC-3
XM23ZJ C2011 09 15.76927 22 17 19.52 +35 34 50.0 16.8 V C42
All images can be seen from:
http://www.xjltp.com/XOSS/XM23ZJ/XM23ZJ.htm

C42,Xingming Observatory, Mt. Nanshan. Observers Z.Jin, X.Gao ,Measurers Z.Jin 0.35-m f/6.9 Schmidt-Cassegrain telescope and CCD.

 

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 Discovery image taken by C42 on Sep. 15.76927 UT,2011LM=19.0,60S 

             DSS IMAGE

                   

archival image taken on Aug. 24