TNS Astronomical Transient Report No. 263510 [ 2025TNSTR2844....1M ]

Date Received (UTC): 2025-07-23 16:43:34
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 2025rye
Discoverer internal name: ZTF25abdegtq
Coordinates (J2000): RA = 17:49:10.989 (267.2957865) DEC = +59:55:41.59 (59.9282186)
Discovery date: 2025-07-23 06:43:22.999 (JD=2460879.7801273)

Potential host galaxy: WISEA J174911.18+595543.0

Remarks: Early SN candidate (g-rise > 0.22+-0.09 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/ZTF25abdegtq

Photometry

Discovery (first detection):
Discovery date: 2025-07-23 06:43:22.999
Flux: 20.2079 ABMag
Filter: g-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Remarks: Data provided by ZTF

Last non-detection:
Last non-detection date: 2025-07-23 05:42:45
Limiting flux: 20.3859 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/2025rye