Discovery certificate for object 2020apx
TNS Astronomical Transient Report No. 59667 [ 2020TNSTR.247....1S ]

Date Received (UTC): 2020-01-24 10:41:43
Sender: Dr. Ismael Perez-Fournon
Reporting Group: SGLF     Discovery Data Source: ZTF

R. Shirley, I. Perez-Fournon, C. Jimenez Angel, F. Poidevin, (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 2020apx
Discoverer internal name: ZTF20aahfcau
Coordinates (J2000): RA = 11:07:22.748 (166.844783) DEC = +59:41:28.43 (59.691231)
Discovery date: 2020-01-23 09:47:23.000 (JD=2458871.9079051)

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


Discovery (first detection):
Discovery date: 2020-01-23 09:47:23.000
Flux: 20.316 ABMag
Filter: g-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Last non-detection:
Last non-detection date: 2020-01-23 07:48:04
Limiting flux: 20.16 ABMag
Filter: r-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Details of the new object can be viewed here: