POSSIBLE SUPERNOVA IN PGC 9714

Zhijian Xu(Nanjing,Jiangsu,China) and Xing Gao (Urumqi,Xinjiang,China), report the discovery of a possible supernova (mag approximately 17.2) on one 40-s survey image (limiting mag about 18.0) taken by Xing Gao in Xingming Observation Sky Survey(C42) around Mar.15.58012 UT. using an unfiltered CCD ( + Celestron C14 Schmidt-Cassegrain telescope D=356-mm @f/6.9 ). The new object approximately located at R.A.=02h 33m 04s.80 Decl.=+35o30'39".6(equinox 2000.0). Which is about 7.4" east and 11.4" north of the center of the PGC 9714. Nothing is visible at this position on archival images taken on Feb.27(limiting mag 18.3), Mar.01(limiting mag 18.0),Mar.03(limiting mag 17.3), or on the DSS from Nov.27,1986(limiting mag about 19.6).

NET USNO-A2.0
XM70ZX C2015 03 15.58012 02 33 04.80 +35 30 39.6 17.2 V C42
All images can be seen from: http://www.xjltp.com/XOSS/XM70ZX/XM70ZX.htm
C42,Xingming Observatory,Mt. Nanshan. Observers Z.Xu,X.Gao,Measurers Z.Xu 0.36-m f/6.9 Schmidt-Cassegrain telescope and CCD.

J.-j. Zhang, Y.-F. Fan, LiJiang Observatory, confirmed this object on one 90-s survey image (limiting mag about 20.0) taken by Yufeng Fan around Mar 17.5131 UT using a R-band CCD with 2.4-m telescope (+ YFOSC) at the LiJiang Observatory of YNAO.

NET USNO-A2.0
XM70ZX C2015 03 17.51319 02 33 04.75 +35 30 40.2 17.0 R C42

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Discovery image taken by C42 on Mar.15.58012 UT,2015

DSS IMAGE

archival image