POSSIBLE NOVA IN M31
Mi Zhang and Xing Gao, report the discovery of a possible nova (mag approximately 17.0) on several 300-s survey images (limiting mag about 20.0) taken by Xing Gao in Xingming Observatory Sky Survey(C42) around Jan. 28.54455 UT using a unfiltered CCD ( + 0.6-m f/8 Ritchey-Chretien telescope ). The transient approximately located at R.A.=00h42m52.32s +41d16’12”.8 (equinox 2000.0). Which is about 90.2″ east and 4.3″ north of the center of the NGC224(M31). Nothing is visible at this position on archival images taken on Jan. 27.67588 UT(limiting mag 19.0). It was suspected the recurrent nova RN M31N 1926-07c.
NET UCAC-4
XM24MZ C2020 01 28.54455 00 42 52.32 +41 16 12.8 17.0R C42
All images can be seen from: http://xjltp.china-vo.org/XM24MZ.html
C42,Xingming Observatory – NEXT, Mt. Nanshan. Observers M.Zhang,X.Gao,Measurers M.Zhang, 0.6-m f/8 Ritchey-Chretien telescope and CCD.
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