Discovery certificate for object 2019wvf
TNS Astronomical Transient Report No. 54742 [ 2019TNSTR2620....1J ]

Date Received (UTC): 2019-12-16 16:40:09
Sender: Mr. Mi Zhang
Reporting Group: XOSS     Discovery Data Source: XOSS

Xinyu Jiang,Guoyou Sun, Mi Zhang and Xing Gao report/s the discovery of a new astronomical transient.

IAU Designation: AT 2019wvf
Discoverer internal name: PSP19G
Coordinates (J2000): RA = 00:42:20.500 (10.585417) DEC = +41:14:59.90 (41.249972)
Discovery date: 2019-12-16 15:32:12.000 (JD=2458834.1473611)

Potential host galaxy: M31

Remarks: Xinyu Jiang,Guoyou Sun, Mi Zhang and Xing Gao, report the discovery of a possible nova (mag approximately 17.4) on several 40-s survey images (limiting mag about 19.0) taken by Xing Gao in Xingming Observatory Sky Survey(C42) around Dec. 16.64736 UT using a unfiltered CCD ( + Celestron C14 Schmidt-Cassegrain telescope D=356-mm @f/6.9 ). The transient approximately located at R.A.=00h42m20.50s +41d14'59".9 (equinox 2000.0). Which is about 268.6" west and 68.6" south of the center of the NGC224(M31). Nothing is visible at this position on archival images taken on Dec. 13.52853 UT(limiting mag 19.0). NET USNO-A2.0 PSP19G C2019 12 16.64736 00 42 20.50 +41 14 59.9 17.4 V C42 All images can be seen from: http://xjltp.china-vo.org/PSP19G.html C42, Xingming Observatory, Mt. Nanshan. Observers Xinyu Jiang,Guoyou Sun, Mi Zhang and Xing Gao Measurer M.Zhang 0.36-m f/6.9 Schmidt-Cassegrain telescope and CCD.

Photometry

Discovery (first detection):
Discovery date: 2019-12-16 15:32:12.000
Flux: 17.4 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: 2019-12-13 12:41:05
Limiting flux: 19 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://www.wis-tns.org/object/2019wvf