TNS Astronomical Transient Report No. 258401 [ 2025TNSTR2201....1M ]

Date Received (UTC): 2025-06-13 18:54:53
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 2025nll
Discoverer internal name: ZTF25aauverq
Coordinates (J2000): RA = 13:06:43.270 (196.68029323493) DEC = +29:10:38.25 (29.177291997381)
Discovery date: 2025-06-13 04:41:29.999 (JD=2460839.6954861)

Potential host galaxy: SDSS J130643.18+291037.4

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/ZTF25aauverq

Photometry

Discovery (first detection):
Discovery date: 2025-06-13 04:41:29.999
Flux: 20.3223 ABMag
Filter: g-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Remarks: Data provided by ZTF

Last non-detection:
Last non-detection date: 2025-06-11 05:39:58
Limiting flux: 19.688 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/2025nll