TNS Astronomical Transient Report No. 281000 [ 2025TNSTR5017....1R ]

Date Received (UTC): 2025-12-17 14:51:28
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 2025ahhb
Discoverer internal name: ZTF25achxmlx
Coordinates (J2000): RA = 14:46:28.604 (221.6191844) DEC = +14:22:30.73 (14.3752019)
Discovery date: 2025-12-15 13:30:44.003 (JD=2461025.0630093)


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: 2025-12-15 13:30:44.003
Flux: 17.7762 ABMag
Filter: r-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Last non-detection:
Last non-detection date: 2025-12-13 13:28:41
Limiting flux: 20.1516 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/2025ahhb