TNS Astronomical Transient Report No. 271269 [ 2025TNSTR3862....1S ]

Date Received (UTC): 2025-09-25 07:20:37
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: SN 2025ymu
Discoverer internal name: ZTF25abtoptp
Coordinates (J2000): RA = 23:52:04.906 (358.020443) DEC = -20:41:37.26 (-20.6936823)
Discovery date: 2025-09-23 07:31:22.995 (JD=2460941.8134606)



Photometry

Discovery (first detection):
Discovery date: 2025-09-23 07:31:22.995
Flux: 20.4577 ABMag
Filter: g-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Last non-detection:
Last non-detection date: 2025-09-23 05:47:55
Limiting flux: 19.8413 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/2025ymu