Discovery certificate for object 2019zun
TNS Astronomical Transient Report No. 58395 [ 2020TNSTR..85....1P ]

Date Received (UTC): 2020-01-09 12:34:00
Sender: Dr. Ismael Perez-Fournon
Reporting Group: SGLF     Discovery Data Source: ZTF

I. Perez-Fournon, C. Jimenez Angel, F. Poidevin, R. Shirley (IAC & ULL), R. Marques-Chaves (CAB), S. Geier (GRANTECAN & IAC), Y. Shu (IoA), S. Rodney, J. Roberts-Pierel (Univ. of South Carolina), A. Bolton (NSF's OIR Lab), S. Chakrabarti, P. Craig, and B. Alamiri (RIT) report/s the discovery of a new astronomical transient.

IAU Designation: AT 2019zun
Discoverer internal name: ZTF19achcecb
Coordinates (J2000): RA = 22:39:39.195 (339.913313) DEC = +31:40:07.24 (31.668678)
Discovery date: 2019-10-23 04:30:27.000 (JD=2458779.6878125)

Remarks: Data were provided by the Zwicky Transient Facility ( and processed through the Lasair (, ALeRCE (, ANTARES (, and MARS ( brokers.


Discovery (first detection):
Discovery date: 2019-10-23 04:30:27.000
Flux: 20.181 ABMag
Filter: g-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Last non-detection:
Last non-detection date: 2019-10-20 04:41:18
Limiting flux: 20.168 ABMag
Filter: r-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Details of the new object can be viewed here: