2012/02/19日晚，徐智坚在查看00~01 30~50目录里的M31图片时发现一颗18等可疑新星。经查证确认是未知目标后上报。
POSSIBLE NOVA IN M31
Zhijian Xu(Nanjing,Jiangsu,China) and Xing Gao (Urumqi,Xinjiang,China), report the discovery of a possible nova (mag approximately 18.0) on two 40-s survey images (limiting mag about 19.2)taken by Xing Gao in Xingming ObservationSky Survey(C42) around Feb .19.55821 UT. using an unfiltered CCD( + Celestron C14 Schmidt-Cassegrain telescope D=356-mm @f/6.9 ). The new object approximately located at R.A. =00h 43m 24s.07 Decl.=+41°19’23”.7(equinox 2000.0). Which is about 447.7″ east and 195.2″ north of the center of the M31.Nothing is visible at this position on archival images taken on Feb. 14 (limiting mag 19.2) and the DSS(POSS2/UKSTU Red) from Nov. 27,1986(limiting mag about 19.8)
NET USNO-A2.0
XM47ZX C2012 02 18.57804 00 43 24.30 +41 19 24.5 18.9 V C42
XM47ZX C2012 02 19.55821 00 43 24.07 +41 19 23.7 18.0 V C42
XM47ZX C2012 02 19.60465 00 43 24.14 +41 19 24.6 17.9 V C42
All images can be seen from: http://www.xjltp.com/XOSS/XM47ZX/XM47ZX.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.