POSSIBLE SUPERNOVA IN NGC 5337
Zhangwei Jin(Ningbo, Zhejiang, China) and Xing Gao (Urumqi, Xinjiang, China), report the discovery of a possible supernova (mag approximately 16.9) on three 40-s survey images (limiting mag about 19.2)taken by Xing Gao in Xingming ObservationSky Survey(C42) around Jan. 09.89694; Jan. 14.94532 and 14.94601 UT,2014. using an unfiltered CCD ( + Celestron C14 Schmidt-Cassegrain telescope D=350-mm @f/6.9 ).the new object approximately located at R.A. =13h 52m 24s.11 Decl.=+39 41 28.2(equinox 2000.0). Which is about 12.2" east and 14.1" north of the center of the NGC 5337.
Nothing is visible at this position on archival images taken on Jan.07,2015. (limiting mag 19.5) or on the DSS(POSS2/UKSTU Red) from Apr. 24,1995(limiting mag about 19.8)
NET USNO-A2.0
XM50ZJ C2015 01 09.89694 13 52 24.11 +39 41 28.6 18.1 V C42
XM50ZJ C2015 01 14.94532 13 52 23.99 +39 41 28.6 17.1 V C42
XM50ZJ C2015 01 14.94601 13 52 24.11 +39 41 28.2 16.9 V C42
All images can be seen from: http://www.xjltp.com/XOSS/XM50ZJ/XM50ZJ.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 Jan.09 (1,2)& Jan.14 (3,4) ,2015

DSS IMAGE

archival image