TNS Astronomical Transient Report No. 271192 [ 2025TNSTR3849....1P ]

Date Received (UTC): 2025-09-24 12:47:49
Date made public:
Sender: Fritz
Reporting Group: ZTF     Discovery Data Source: ZTF

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

IAU Designation: AT 2025yko
Discoverer internal name: ZTF25absbnhz
Coordinates (J2000): RA = 15:53:44.584 (238.4357687) DEC = +65:34:17.61 (65.5715589)
Discovery date: 2025-09-20 03:28:38.997 (JD=2460938.6448958)



Photometry

Discovery (first detection):
Discovery date: 2025-09-20 03:28:38.997
Flux: 20.049 ABMag
Filter: g-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Last non-detection:
Last non-detection date: 2025-09-16 04:18:36
Limiting flux: 20.1867 ABMag
Filter: r-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin


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