TNS Astronomical Transient Report No. 274052 [ 2025TNSTR4212....1R ]

Date Received (UTC): 2025-10-20 11:42:59
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 2025aazk
Discoverer internal name: ZTF25abxqlem
Coordinates (J2000): RA = 07:23:12.974 (110.804058) DEC = +15:26:56.13 (15.4489249)
Discovery date: 2025-10-18 10:39:58.000 (JD=2460966.9444213)


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: 2025-10-18 10:39:58.000
Flux: 19.351 ABMag
Filter: r-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Last non-detection:
Last non-detection date: 2025-10-18 10:39:17
Limiting flux: 20.0634 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/2025aazk