TNS Astronomical Transient Report No. 281610 [ 2025TNSTR5093....1R ]

Date Received (UTC): 2025-12-20 14:05:35
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 2025ahsa
Discoverer internal name: ZTF25acjpvvr
Coordinates (J2000): RA = 14:35:00.212 (218.7508816) DEC = +00:59:10.43 (0.9862294)
Discovery date: 2025-12-20 12:06:08.003 (JD=2461030.0042593)


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: 2025-12-20 12:06:08.003
Flux: 14.9301 ABMag
Filter: g-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Last non-detection:
Last non-detection date: 2025-12-08 13:35:38
Limiting flux: 18.9826 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/2025ahsa