TNS Astronomical Transient Report No. 248647 [ 2025TNSTR1018....1R ]

Date Received (UTC): 2025-03-17 08:20:51
Date made public:
Sender: Fritz
Reporting Group: ZTF     Discovery Data Source: ZTF

Nabeel Rehemtulla (CIERA, NU), Christoffer Fremling (Caltech), Daniel Perley (LJMU), Theophile du Laz (Caltech) on behalf of ZTF report/s the discovery of a new astronomical transient.

IAU Designation: SN 2025erh
Discoverer internal name: ZTF25aajcusp
Coordinates (J2000): RA = 09:37:19.237 (144.3301555) DEC = +39:46:42.12 (39.7783661)
Discovery date: 2025-03-17 06:11:51.002 (JD=2460751.7582292)


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: 2025-03-17 06:11:51.002
Flux: 18.0744 ABMag
Filter: r-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Last non-detection:
Last non-detection date: 2025-03-10 07:09:14
Limiting flux: 19.371 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/2025erh