Discovery certificate for object 2020nbb
TNS Astronomical Transient Report No. 74590 [ 2020TNSTR1849....1F ]

Date Received (UTC): 2020-06-19 22:29:39
Sender: ZTF (ALeRCE)
Reporting Group: ALeRCE     Discovery Data Source: ZTF

F. Forster, F.E. Bauer, L. Galbany, G. Pignata, E. Camacho, J. Silva-Farfan, J. Arredondo, G. Cabrera-Vives, R. Carrasco-Davis, P.A. Estevez, P. Huijse, E. Reyes, I. Reyes, P. Sanchez-Saez, C. Valenzuela, E. Castillo, D. Ruz-Mieres, D. Rodriguez-Mancini, F.E. Bauer, M. Catelan, S. Eyheramendy, M.J. Graham on behalf of the ALeRCE broker report/s the discovery of a new astronomical transient.

IAU Designation: SN 2020nbb
Discoverer internal name: ZTF20abgevcw
Coordinates (J2000): RA = 16:28:09.255 (247.0385635) DEC = +30:32:18.30 (30.5384153)
Discovery date: 2020-06-19 06:10:14.002 (JD=2459019.7571065)

Potential host galaxy: WISEA J162809.00+303216.7
Host redshift: 0.082549

Remarks: Early SN candidate (g-rise > 0.49+-0.07 mag/day) classified by ALeRCE using the public ZTF stream. Discovery image and light curve in http://alerce.online/object/ZTF20abgevcw

Photometry

Discovery (first detection):
Discovery date: 2020-06-19 06:10:14.002
Flux: 20.0299 ABMag
Filter: g-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Remarks: Data provided by ZTF

Last non-detection:
Last non-detection date: 2020-06-17 07:16:22
Limiting flux: 20.9913 ABMag
Filter: g-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Remarks: Data provided by ZTF

Details of the new object can be viewed here: https://www.wis-tns.org/object/2020nbb