TNS Astronomical Transient Report No. 269098 [ 2025TNSTR3525....1R ]

Date Received (UTC): 2025-09-02 12:45:54
Date made public:
Sender: BTSbot_bot
Reporting Group: ZTF     Discovery Data Source: ZTF

Nabeel Rehemtulla (CIERA, NU), Wynn Jacobson-Galán (Caltech), Theophile du Laz (Caltech) on behalf of ZTF report/s the discovery of a new astronomical transient.

IAU Designation: AT 2025wsb
Discoverer internal name: ZTF25abohhnj
Coordinates (J2000): RA = 03:50:00.618 (57.5025769) DEC = +44:05:36.83 (44.0935634)
Discovery date: 2025-09-02 10:50:55.996 (JD=2460920.952037)


Remarks: Bright (m_peak <= 18.5) transient candidate identified autonomously by BTSbot (Rehemtulla et al. 2024; arXiv:2401.15167).

Photometry

Discovery (first detection):
Discovery date: 2025-09-02 10:50:55.996
Flux: 18.8448 ABMag
Filter: r-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Last non-detection:
Last non-detection date: 2025-09-01 09:19:21
Limiting flux: 20.394 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/2025wsb