星明天文台独立发现，且该新星是M31N 1957-10b 的再发。
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可惜晚了0.4天，再接再厉。
2010年12月1日晚，阮建高在SNSP适时搜索中，在M31发现一个可疑目标，后经过补拍验证，认为是新星可疑目标，测量后上报。
POSSIBLE NOVA IN M31
Jiangao Ruan(Fangchenggang, Guangxi, China) and Xing Gao (Urumqi, Xinjiang, China)，report the discovery of a possible nova (mag approximately 16.3) on two 60-s survey images (limiting mag about 19.5) taken by Xing Gao in Xingming Observatory Sky Survey(C42) around Dec. 01.52049 UT using a unfilled CCD ( + Celestron C14 Schmidt-Cassegrain telescope D=356-mm @f/6.9 ). the new object approximately located at R.A.=00h40m24s.38 Decl.=+41°04’03”.6 (equinox 2000.0). Nothing is visible at this position on archival images taken on Nov.29(limiting mag 19.5) and Nov.28 (limiting mag 19.5) or DSS(POSS-II Red) images from 1993-10-21 (limiting red mag 20.8).
All images can be seen from: http://www.xjltp.com/XOSS/XM02JR/XM02JR.htm
NET USNO-B1.0
XM02JR C2010 12 01.52049 00 40 24.38 +41 04 03.6 16.3 V C42
XM02JR C2010 12 01.54296 00 40 24.37 +41 04 03.7 16.1 V C42
XM02JR C2010 12 04.55447 00 40 24.36 +41 04 03.3 16.0 V C42
XM02JR C2010 12 05.51669 00 40 24.37 +41 04 03.5 16.0 V C42
XM02JR C2010 12 06.53218 00 40 24.37 +41 04 03.4 16.2 V C42
XM02JR C2010 12 07.52448 00 40 24.37 +41 04 03.4 16.3 V C42
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C42 Xingming Observatory, Mt. Nanshan. Observers J.Ruan,X.Gao ,Measurers J.Ruan. 0.36-m f/6.9 Schmidt-Cassegrain telescope and CCD.
APPARENT NOVA IN M31: M31N 2010-12a
W. Zheng, A. Romadan, and N. Whallon, University of Michigan; J. Vinko,
University of Szeged; R. Quimby, California Institute of Technology; S. B.
Pandey, F. Yuan, and C. Akerlof, University of Michigan; P. Pasque and M.
Verkinderen, Cousino High School; and J. C. Wheeler and E. Chatzopoulos,
University of Texas, on behalf of the ROTSE collaboration, report the
discovery of an optical transient in M31, located at R.A. = 0h40m24s.39, Decl.
= +41o04’03”.9 (equinox 2000.0; uncertainty < 1″), which is 26′.3 west and
12′.1 south from the core of M31, that was detected in unfiltered CCD images
taken by the ROTSE-IIIb telescope at McDonald Observatory on Dec. 1.15 UT,
both in co-added image and in four individual images at mag about 16.7. The
object, designated 2010-12a, was not detected to a limiting magnitude of
about 18.5 before and on Nov. 28. The quoted ROTSE magnitudes are calibrated
relative to the USNO-B1.0 catalogue. A finding chart can be found at website
URL http://www.rotse.net/rsvp/j004024.4+410404/ROTSE3-J004024.4+410404.jpg.
Jiangao Ruan, Fangchenggang, Guangxi, China; and Xing Gao, Urumqi, Xinjiang,
China, report their independent discovery of M31N 2010-12a at mag approximately
16.3 on two unfiltered 60-s survey CCD images (limiting mag about 19.5) taken
by Xing Gao in the course of the Xingming Observatory Sky Survey around Dec.
1.5205 UT using a Celestron C14 Schmidt-Cassegrain telescope at Mt. Nanshan;
they provide position end figures 24s.37 +/- 0s.01, 03″.5 +/- 0″.2. Additional
magnitudes for M31N 2010-12a from Ruan and Ga 1993 Oct. 21, [20.8 (Palomar
Sky Survey, red N plate); 2010 Nov. 28, [19.5; 29, [19.5; Dec. 1.543, 16.1;
4.554, 16.0; 5.517, 16.0; 6.532, 16.2; 17.524, 16.3. Ruan and Gao have
posted their images at website URL http://www.xjltp.com/XOSS/XM02JR/XM02JR.htm.