TNS Astronomical Transient Report No. 272734 [ 2025TNSTR4075....1R ]

Date Received (UTC): 2025-10-11 09:40:26
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: SN 2025zth
Discoverer internal name: ZTF25abwkieo
Coordinates (J2000): RA = 04:12:32.657 (63.1360699) DEC = -08:58:47.61 (-8.9798924)
Discovery date: 2025-10-11 08:32:54.003 (JD=2460959.8561806)


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: 2025-10-11 08:32:54.003
Flux: 17.6955 ABMag
Filter: r-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Last non-detection:
Last non-detection date: 2025-10-07 10:15:52
Limiting flux: 19.463 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/2025zth