Discovery certificate for object 2019qcg
TNS Astronomical Transient Report No. 46918 [ 2019TNSTR1827....1G ]

Date Received (UTC): 2019-09-14 16:19:53
Sender: Mr. Mi Zhang
Source Group: XOSS

Mi Zhang and Xing Gao report/s the discovery of a new astronomical transient.

IAU Designation: AT 2019qcg
Discoverer internal name: XM15MZ
Coordinates (J2000): RA = 00:42:42.310 (10.676292) DEC = +41:17:45.60 (41.296)
Discovery date: 2019-09-14 15:52:14 (JD=2458741.1612731)

Potential host galaxy: M31

Remarks: Mi Zhang and Xing Gao, report the discovery of a possible nova (mag approximately 16.7) on severl 120-s survey images (limiting mag about 18.5) taken by Xing Gao in Xingming Observatory Sky Survey (XXX) around Sep. 14.66127 UT using a unfiltered CCD ( + 0.5-m f/4 reflector + CCD ). The transient approximately located at R.A.=00h42m42.31s +41d17'45".6 (equinox 2000.0). Which is about 22.7" west and 97.1" north of the center of the NGC224(M31). Nothing is visible at this position on archival images taken on Sep. 12.65343 UT(limiting mag 19.0). NET USNO-A2.0 XM15MZ C2019 09 14.66127 00 42 42.31 +41 17 45.6 16.7 V XXX COD XXX COM Long. 88 34 37.9 E, Lat. 43 31 20.6 N, Alt. 1795m CON Gaoyazi Observatory, Urumqi, Xinjiang, China

Photometry

Discovery (first detection):
Discovery date: 2019-09-14 15:52:14
Flux: 16.7 VegaMag
Filter: Clear-
Instrument: Other
Telescope: Other

Remarks: using a unfiltered CCD ( + 0.5-m f/4 reflector + CCD ).

Last non-detection:
Last non-detection date: 2019-09-12 15:40:56
Limiting flux: 19 VegaMag
Filter: Clear-
Instrument: Other
Telescope: Other

Remarks: using a unfiltered CCD ( + 0.5-m f/4 reflector + CCD ).

Details of the new object can be viewed here: https://wis-tns.weizmann.ac.il/object/2019qcg