TNS Astronomical Transient Report No. 307451 [ 2026TNSTR2398....1S ]

Date Received (UTC): 2026-06-08 09:21:01
Date made public:
Sender: Fritz
Reporting Group: ZTF     Discovery Data Source: ZTF

Jesper Sollerman (SU), Christoffer Fremling (Caltech), Daniel Perley (LJMU), Theophile du Laz (Caltech) on behalf of ZTF report/s the discovery of a new astronomical transient.

IAU Designation: AT 2026oni
Discoverer internal name: ZTF26abacchu
Coordinates (J2000): RA = 17:57:26.437 (269.3601533) DEC = +28:26:28.58 (28.4412709)
Discovery date: 2026-06-03 08:53:27.000 (JD=2461194.8704514)



Photometry

Discovery (first detection):
Discovery date: 2026-06-03 08:53:27.000
Flux: 20.4266 ABMag
Filter: r-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Last non-detection:
Last non-detection date: 2026-06-01 09:52:03
Limiting flux: 19.835 ABMag
Filter: g-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin


Details of the new object can be viewed here: https://www.wis-tns.org/object/2026oni