Discovery certificate for object 2020bty
TNS Astronomical Transient Report No. 61028 [ 2020TNSTR.374....1P ]

Date Received (UTC): 2020-02-03 20:31:00
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 2020bty
Discoverer internal name: ZTF20aalixda
Coordinates (J2000): RA = 11:07:35.481 (166.897838) DEC = +59:41:49.19 (59.696997)
Discovery date: 2020-01-29 09:12:37.000 (JD=2458877.8837616)

Potential host galaxy: SDSS J110735.02+594154.8
Host redshift: 0.07039

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


Discovery (first detection):
Discovery date: 2020-01-29 09:12:37.000
Flux: 20.769 ABMag
Filter: g-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Last non-detection:
Last non-detection date: 2020-01-29 07:40:56
Limiting flux: 20.242 ABMag
Filter: r-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Details of the new object can be viewed here: