TNS Astronomical Transient Report No. 271891 [ 2025TNSTR3934....1S ]

Date Received (UTC): 2025-09-30 16:59:02
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 2025yyk
Discoverer internal name: ZTF25abuoqaa
Coordinates (J2000): RA = 07:16:24.106 (109.1004406) DEC = +44:46:12.04 (44.7700122)
Discovery date: 2025-09-30 10:54:16.997 (JD=2460948.9543634)



Photometry

Discovery (first detection):
Discovery date: 2025-09-30 10:54:16.997
Flux: 20.1873 ABMag
Filter: g-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Last non-detection:
Last non-detection date: 2025-09-05 12:18:23
Limiting flux: 20.7642 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/2025yyk