Discovery certificate for object 2020byy
TNS Astronomical Transient Report No. 61237 [ 2020TNSTR.418....1N ]

Date Received (UTC): 2020-02-07 05:33:57
Sender: ZTF (ZTF_AMPEL_NEW)
Reporting Group: ZTF     Discovery Data Source: ZTF

J. Nordin, V. Brinnel, M. Giomi, J. van Santen (HU Berlin), A. Gal-Yam, O. Yaron, S. Schulze (Weizmann) on behalf of ZTF report/s the discovery of a new astronomical transient.

IAU Designation: AT 2020byy
Discoverer internal name: ZTF20aaldmmo
Coordinates (J2000): RA = 09:40:38.988 (145.16244854) DEC = +78:06:17.93 (78.10498016)
Discovery date: 2020-02-01 06:17:24.000 (JD=2458880.7620949)


Remarks: See arXiv:1904.05922 for selection criteria.

Photometry

Discovery (first detection):
Discovery date: 2020-02-01 06:17:24.000
Flux: 20.18 ABMag
Filter: g-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Last non-detection:
Last non-detection date: 2020-02-01 05:21:01
Limiting flux: 20.2694 ABMag
Filter: r-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin


Details of the new object can be viewed here: https://wis-tns.weizmann.ac.il/object/2020byy