Discovery certificate for object 2020tjs
TNS Astronomical Transient Report No. 82274 [ 2020TNSTR2820....1S ]

Date Received (UTC): 2020-09-16 00:51:25
Sender: Dr. Ismael Perez-Fournon
Reporting Group: SGLF     Discovery Data Source: ZTF

R. Shirley (Univ. of Southampton), 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 NOIRLab), S. Chakrabarti, P. Craig, and B. Alamiri (RIT) report/s the discovery of a new astronomical transient.

IAU Designation: AT 2020tjs
Discoverer internal name: ZTF20abyhhjg
Coordinates (J2000): RA = 16:55:28.213 (253.867554) DEC = +38:07:56.98 (38.132494)
Discovery date: 2020-09-02 04:47:34.000 (JD=2459094.6996991)

Potential host galaxy: SDSS J165527.79+380754.8
Host redshift: 0.115331

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


Discovery (first detection):
Discovery date: 2020-09-02 04:47:34.000
Flux: 19.731 ABMag
Filter: g-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Last non-detection:
Last non-detection date: 2020-08-26 03:22:05
Limiting flux: 20.034 ABMag
Filter: r-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Details of the new object can be viewed here: