Discovery certificate for object 2020ahg
TNS Astronomical Transient Report No. 59210 [ 2020TNSTR.197....1P ]

Date Received (UTC): 2020-01-20 01:12:24
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 2020ahg
Discoverer internal name: ZTF20aagqrct
Coordinates (J2000): RA = 06:50:12.763 (102.553179) DEC = +60:48:41.83 (60.811619)
Discovery date: 2020-01-16 04:00:18.000 (JD=2458864.666875)

Potential host galaxy: NGC2273
Host redshift: 0.006138

Remarks: This possible SN is at about 127" from NGC2273. Data were provided by the Zwicky Transient Facility ( and processed through the Lasair (, ALeRCE (, ANTARES (, and MARS ( brokers.


Discovery (first detection):
Discovery date: 2020-01-16 04:00:18.000
Flux: 21.007 ABMag
Filter: g-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Last non-detection:
Last non-detection date: 2020-01-15 05:17:15
Limiting flux: 18.621 ABMag
Filter: r-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Details of the new object can be viewed here: