Discovery certificate for object 2020cqi
TNS Astronomical Transient Report No. 61942 [ 2020TNSTR.509....1G ]

Date Received (UTC): 2020-02-15 16:56:43
Sender: Mr. Mi Zhang
Reporting Group: XOSS     Discovery Data Source: XOSS

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

IAU Designation: AT 2020cqi
Discoverer internal name: XM26MZ
Coordinates (J2000): RA = 00:42:48.820 (10.703417) DEC = +41:18:43.00 (41.311944)
Discovery date: 2020-02-15 13:09:36.000 (JD=2458895.0483333)

Potential host galaxy: M31

Remarks: Mi Zhang and Xing Gao, report the discovery of a possible nova (mag approximately 19.2) on several 300-s survey images (limiting mag about 21.5) taken by Xing Gao in Xingming Observatory Sky Survey(C42) around Feb. 15.54833 UT using a unfiltered CCD ( + 0.6-m f/8 Ritchey-Chretien telescope ). The transient approximately located at R.A.=00h42m48.82s +41d18'43".0 (equinox 2000.0). Which is about 50.7" east and 154.5" north of the center of the NGC224(M31). Nothing is visible at this position on archival images taken on Feb. 10.56487 UT(limiting mag 21.0).

Photometry

Discovery (first detection):
Discovery date: 2020-02-15 13:09:36.000
Flux: 19.2 VegaMag
Filter: Clear-
Instrument: Other
Telescope: Other

Remarks: using a unfiltered CCD ( + 0.6-m f/8 Ritchey-Chretien telescope ).

Last non-detection:
Last non-detection date: 2020-02-10 13:33:25
Limiting flux: 21 VegaMag
Filter: Clear-
Instrument: Other
Telescope: Other

Remarks: using a unfiltered CCD ( + 0.6-m f/8 Ritchey-Chretien telescope ).

Details of the new object can be viewed here: https://wis-tns.weizmann.ac.il/object/2020cqi