TNS Astronomical Transient Report No. 270815 [ 2025TNSTR3798....1S ]
Date Received (UTC): 2025-09-21 06:00:10
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 2025ydf
Discoverer internal name: ZTF25abrdnms
Coordinates (J2000): RA = 13:40:53.160 (205.2215003) DEC = +43:29:13.98 (43.4872154)
Discovery date: 2025-09-20 02:38:05.000 (JD=2460938.6097801)
Photometry
Discovery (first detection):
Discovery date: 2025-09-20 02:38:05.000
Flux: 18.9243 ABMag
Filter: r-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, ZTF Public+Partnership alert streams
Details of the new object can be viewed here: https://www.wis-tns.org/object/2025ydf
Date Received (UTC): 2025-09-21 06:00:10
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 2025ydf
Discoverer internal name: ZTF25abrdnms
Coordinates (J2000): RA = 13:40:53.160 (205.2215003) DEC = +43:29:13.98 (43.4872154)
Discovery date: 2025-09-20 02:38:05.000 (JD=2460938.6097801)
Photometry
Discovery (first detection):
Discovery date: 2025-09-20 02:38:05.000
Flux: 18.9243 ABMag
Filter: r-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, ZTF Public+Partnership alert streams
Details of the new object can be viewed here: https://www.wis-tns.org/object/2025ydf