TNS Astronomical Transient Report No. 269318 [ 2025TNSTR3548....1M ]

Date Received (UTC): 2025-09-04 20:10:23
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 2025www
Discoverer internal name: ZTF25abnkhgc
Coordinates (J2000): RA = 08:53:59.659 (133.49857845019) DEC = +29:05:04.19 (29.08449755)
Discovery date: 2025-08-30 12:23:37.997 (JD=2460918.016412)

Potential host galaxy: SDSS J085359.66+290504.1
Host redshift: 0.08912301

Remarks: SN candidate 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/ZTF25abnkhgc

Photometry

Discovery (first detection):
Discovery date: 2025-08-30 12:23:37.997
Flux: 18.5769 ABMag
Filter: r-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Remarks: Data provided by ZTF

Last non-detection:
Archival info: Other
Remarks: ZTF non-detection limits not available

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