TNS Astronomical Transient Report No. 271763 [ 2025TNSTR3934....1S ]

Date Received (UTC): 2025-09-30 08:16:53
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 2025yxb
Discoverer internal name: ZTF25abtmtxr
Coordinates (J2000): RA = 17:48:08.442 (267.0351732) DEC = +66:02:16.82 (66.0380063)
Discovery date: 2025-09-25 04:26:13.001 (JD=2460943.6848727)



Photometry

Discovery (first detection):
Discovery date: 2025-09-25 04:26:13.001
Flux: 19.8837 ABMag
Filter: g-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Last non-detection:
Last non-detection date: 2025-09-24 04:20:57
Limiting flux: 21.4542 ABMag
Filter: r-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin


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