Discovery certificate for object 2019gby
TNS Astronomical Transient Report No. 35948 [ 2019TNSTR.874....1N ]

Date Received (UTC): 2019-05-29 10:35:02
Sender: ZTF (ZTF_AMPEL_NEW)
Source Group: 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 2019gby
Discoverer internal name: ZTF18abvgqqn
Coordinates (J2000): RA = 18:22:32.063 (275.6335947) DEC = +19:57:18.39 (19.9551089)
Discovery date: 2019-05-29 07:34:39 (JD=2458632.8157292)


Remarks: See arXiv:1904.05922 for selection criteria.

Photometry

Discovery (first detection):
Discovery date: 2019-05-29 07:34:39
Flux: 19.49 ABMag
Filter: r-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Last non-detection:
Last non-detection date: 2019-05-24 11:02:47
Limiting flux: 20.2617 ABMag
Filter: g-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/2019gby