TNS Astronomical Transient Report No. 271200 [ 2025TNSTR3850....1S ]

Date Received (UTC): 2025-09-24 12:55:40
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 2025ykw
Discoverer internal name: ZTF25abtkder
Coordinates (J2000): RA = 09:06:04.890 (136.520376) DEC = +17:02:35.09 (17.0430806)
Discovery date: 2025-09-24 12:23:11.999 (JD=2460943.0161111)



Photometry

Discovery (first detection):
Discovery date: 2025-09-24 12:23:11.999
Flux: 19.7288 ABMag
Filter: r-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Last non-detection:
Last non-detection date: 2025-09-20 12:50:11
Limiting flux: 17.736 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/2025ykw