TNS Astronomical Transient Report No. 276249 [ 2025TNSTR4504....1M ]

Date Received (UTC): 2025-11-10 18:06:42
Date made public:
Sender: ALeRCE
Reporting Group: ALeRCE     Discovery Data Source: ZTF

A. Munoz-Arancibia, G. Pignata, F.E. Bauer, F. Forster, A. Mourao, J. Correa-Orellana, 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 2025acyc
Discoverer internal name: ZTF25acdinfk
Coordinates (J2000): RA = 22:15:03.153 (333.7631382) DEC = -04:55:34.93 (-4.9263696)
Discovery date: 2025-11-09 04:03:06.998 (JD=2460988.668831)

Potential host galaxy: SDSS J221503.11-045533.5

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/ZTF25acdinfk

Photometry

Discovery (first detection):
Discovery date: 2025-11-09 04:03:06.998
Flux: 19.7084 ABMag
Filter: g-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Remarks: Data provided by ZTF

Last non-detection:
Last non-detection date: 2025-11-07 06:08:58
Limiting flux: 18.9875 ABMag
Filter: g-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/2025acyc