TNS Astronomical Transient Report No. 274216 [ 2025TNSTR4230....1S ]

Date Received (UTC): 2025-10-21 13:40:00
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 2025abdk
Discoverer internal name: ZTF25abysqys
Coordinates (J2000): RA = 11:33:14.372 (173.309885) DEC = +42:04:31.63 (42.0754524)
Discovery date: 2025-10-21 11:55:16.003 (JD=2460969.996713)



Photometry

Discovery (first detection):
Discovery date: 2025-10-21 11:55:16.003
Flux: 20.0133 ABMag
Filter: g-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Last non-detection:
Archival info: Other
Remarks: No non-detections prior to first detection in ZTF Public+Partnership, ZTF Public alert streams

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