TNS Astronomical Transient Report No. 272218 [ 2025TNSTR3941....1M ]

Date Received (UTC): 2025-10-01 13:03:03
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 2025zir
Discoverer internal name: ZTF24abrvkml
Coordinates (J2000): RA = 05:02:47.917 (75.6996559) DEC = -23:54:02.31 (-23.9006408)
Discovery date: 2025-09-30 11:01:24.004 (JD=2460948.9593056)

Potential host galaxy: WISEA J050247.92-235402.3

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/ZTF24abrvkml

Photometry

Discovery (first detection):
Discovery date: 2025-09-30 11:01:24.004
Flux: 20.0001 ABMag
Filter: g-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/2025zir