Discovery certificate for object 2017glx
TNS Astronomical Transient Report No. 13372 [ 2017TNSTR.963....1G ]

Date Received (UTC): 2017-09-03 17:47:08
Sender: Mr. Zhijian Xu
Source Group: XOSS

Wei Gao, Yanxi Li, Zhijian Xu, Ang Li, Xing Gao report/s the discovery of a new astronomical transient.

IAU Designation: SN 2017glx
Discoverer internal name: PSP17B
Coordinates (J2000): RA = 19:43:40.290 (295.917875) DEC = +56:06:36.30 (56.110083)
Discovery date: 2017-09-03 16:50:30 (JD=2458000.2017361)

Potential host galaxy: NGC 6824
Host redshift: 0.011294

Remarks: 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.

Photometry

Discovery (first detection):
Discovery date: 2017-09-03 16:50:30
Flux: 14.5 VegaMag
Filter: Clear-
Instrument: Other
Telescope: Other

Remarks: Using a unfiltered CCD + Celestron C14 Schmidt-Cassegrain telescope D=356-mm @f/6.9.

Last non-detection:
Last non-detection date: 2017-08-22 17:17:12
Limiting flux: 19.5 VegaMag
Filter: Clear-
Instrument: Other
Telescope: Other

Remarks: Using a unfiltered CCD + Celestron C14 Schmidt-Cassegrain telescope D=356-mm @f/6.9.

Details of the new object can be viewed here: https://wis-tns.weizmann.ac.il/object/2017glx