TNS Astronomical Transient Report No. 265050 [ 2025TNSTR3087....1R ]

Date Received (UTC): 2025-08-05 05:41:16
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 2025tfv
Discoverer internal name: ZTF25abhfslz
Coordinates (J2000): RA = 18:42:31.185 (280.6299364) DEC = +17:47:33.22 (17.7925625)
Discovery date: 2025-08-03 08:46:46.001 (JD=2460890.8658102)


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: 2025-08-03 08:46:46.001
Flux: 20.3723 ABMag
Filter: r-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Last non-detection:
Last non-detection date: 2025-08-03 07:54:09
Limiting flux: 20.4858 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/2025tfv