TNS Astronomical Transient Report No. 259798 [ 2025TNSTR2364....1S ]

Date Received (UTC): 2025-06-23 06:18:20
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 2025osc
Discoverer internal name: ZTF25aavgrsk
Coordinates (J2000): RA = 14:12:22.026 (213.0917761) DEC = -21:10:44.99 (-21.179163)
Discovery date: 2025-06-16 05:31:56.003 (JD=2460842.7305093)



Photometry

Discovery (first detection):
Discovery date: 2025-06-16 05:31:56.003
Flux: 19.6924 ABMag
Filter: g-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Last non-detection:
Last non-detection date: 2025-06-10 06:25:38
Limiting flux: 18.2264 ABMag
Filter: g-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin


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