POSSIBLE SUPERNOVA IN NGC 6824

Wei Gao, Yanxi Li, Zhijian Xu, Ang Li and Xing Gao report the discovery of a possible supernova in NGC 6824. The transient (mag approximately 14.5) on one 40-s survey image (limiting mag about 19.5) taken by Xing Gao in Xingming Observatory Sky Survey(C42) around Sep. 03.70174, 2017, using a unfiltered CCD ( + Celestron C14 Schmidt-Cassegrain telescope D=356-mm @f/6.9 ). The new object approximately located at R.A.=19h43m40.29s +56d06'36".3 (equinox 2000.0). Which is about 3.2" west and 2.3" north of the center of the NGC 6824. Nothing is visible at this position on archival image taken on Aug 22.72028, 2017 (limiting mag 19.5). All images can be seen from: http://www.xjltp.com/XOSS/PSP17B/PSP17B.htm

NET UCAC-4
PSP17B C2017 09 03.70174 19 43 40.29 +56 06 36.3 14.5 V C42

 

--------------------------

Discovery image taken by C42 on Sep.03.70174,2017 UT

DSS IMAGE

Archival images taken by C42 on Aug.22 ,2017 UT