TNS Astronomical Transient Report No. 253851 [ 2025TNSTR1640....1F ]

Date Received (UTC): 2025-05-03 16:29:48
Date made public:
Sender: ALeRCE
Reporting Group: ALeRCE     Discovery Data Source: ZTF

F. Forster, F.E. Bauer, G. Pignata, A. Munoz-Arancibia, A. Mourao, L. Hernandez-Garcia, L. Galbany, J. Silva-Farfan, R. Dastidar, J.P. Brandt, A. Alvarez, G. Cabrera-Vives, R. Carrasco-Davis, P.A. Estevez, B. Gamboa, P. Huijse, H. Larranaga, C. Mansilla, K. Medina, D. Moreno, E. Munoz, E. Pizarro, 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: SN 2025joi
Discoverer internal name: ZTF25aapnvqx
Coordinates (J2000): RA = 21:42:25.089 (325.6045368) DEC = +23:01:47.75 (23.0299304)
Discovery date: 2025-05-03 10:41:42.000 (JD=2460798.945625)

Potential host galaxy: SDSS J214225.26+230147.1

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/ZTF25aapnvqx

Photometry

Discovery (first detection):
Discovery date: 2025-05-03 10:41:42.000
Flux: 19.4765 ABMag
Filter: r-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Remarks: Data provided by ZTF

Last non-detection:
Last non-detection date: 2025-04-30 11:28:05
Limiting flux: 20.4408 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/2025joi