星明天文台

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王彬 XM11BW ? 超新星

POSSIBLE SUPERNOVA IN IC 5145
Bin Wang(Shaoxing, Zhejiang, China) and Xing Gao
(Urumqi,Xinjiang,China), report the discovery of a possible
supernova(mag approximately 18.2) on a 40-s survey image (limiting mag
about 19.5) taken by Xing Gao in Xingming ObservationSky Survey(C42)
around May 10.87282 UT. using an unfiltered CCD ( + Celestron C14
Schmidt-Cassegrain telescope D=350-mm @f/6.9 ).The new object
approximately located at R.A. =21h 54m 23s.53
Decl.=+15°09”23″.7(equinox 2000.0). Which is about 5.3″ east and 0.9″
south of the center of the IC 5145.. Nothing is visible at this
position on archival images taken on May.7 (limiting mag 19.5 )or on
the DSS from Oct. 4,1989(limiting mag about 19.8).

NET USNO-A2.0
XM11BW   C2014 05 10.87282 21 54 23.59 +15 09 22.4          18.2 V      C42
XM11BW   C2014 05 13.87022 21 54 23.53 +15 09 23.7          17.5 V      C42
XM11BW   C2014 05 17.87536 21 54 23.62 +15 09 22.4          17.8 V      C42

All images can be seen from: http://www.xjltp.com/XOSS/XM11BW/XM11BW.htm

C42,Xingming Observatory,Mt. Nanshan. Observers B.Wang,X.Gao,Measurers
B.Wang 0.36-m f/6.9 Schmidt-Cassegrain telescope and CCD

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