TNS Astronomical Transient Report No. 261916 [ 2025TNSTR2625....1M ]

Date Received (UTC): 2025-07-09 15:43:54
Date made public:
Sender: ALeRCE
Reporting Group: ALeRCE     Discovery Data Source: ZTF

A. Munoz-Arancibia, F.E. Bauer, G. Pignata, F. Forster, A. Mourao, S. Jurado, L. Hernandez-Garcia, L. Galbany, J. Silva-Farfan, R. Dastidar, J.P. Brandt, A. Alvarez, F. Andrades, G. Cabrera-Vives, R. Carrasco-Davis, P.A. Estevez, P. Huijse, H. Larranaga, C. Mansilla, K. Medina, D. Moreno, E. Munoz, I. Reyes, P. Sanchez-Saez, D. Rodriguez-Mancini, M. Catelan, S. Eyheramendy, M.J. Graham on behalf of the ALeRCE broker report/s the discovery of a new astronomical transient.

IAU Designation: AT 2025qra
Discoverer internal name: ZTF25abanvbn
Coordinates (J2000): RA = 17:50:14.962 (267.56234368826) DEC = +31:36:31.69 (31.608801883671)
Discovery date: 2025-07-05 09:52:08.000 (JD=2460861.9112037)

Potential host galaxy: LEDA 1955399

Remarks: Early SN candidate (r-rise > 0.19+-0.04 mag/day) classified using ALeRCE's stamp classifier (Carrasco-Davis et al. 2021) and the public ZTF stream. Discovery image and light curve in http://alerce.online/object/ZTF25abanvbn

Photometry

Discovery (first detection):
Discovery date: 2025-07-05 09:52:08.000
Flux: 20.6264 ABMag
Filter: g-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Remarks: Data provided by ZTF

Last non-detection:
Last non-detection date: 2025-07-05 08:10:44
Limiting flux: 20.5895 ABMag
Filter: r-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Remarks: Data provided by ZTF

Details of the new object can be viewed here: https://www.wis-tns.org/object/2025qra