TNS Astronomical Transient Report No. 266936 [ 2025TNSTR3303....1S ]

Date Received (UTC): 2025-08-21 13:14:22
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 2025uun
Discoverer internal name: ZTF25abkivbd
Coordinates (J2000): RA = 00:42:38.871 (10.6619629) DEC = +40:16:48.31 (40.2800866)
Discovery date: 2025-08-21 09:28:06.000 (JD=2460908.8945139)



Photometry

Discovery (first detection):
Discovery date: 2025-08-21 09:28:06.000
Flux: 19.6774 ABMag
Filter: i-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Last non-detection:
Last non-detection date: 2025-08-17 07:13:27
Limiting flux: 20.4938 ABMag
Filter: g-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin


Details of the new object can be viewed here: https://sandbox.wis-tns.org/object/2025uun