TNS Astronomical Transient Report No. 243065 [ 2025TNSTR.425....1M ]

Date Received (UTC): 2025-01-31 22:53:03
Date made public:
Sender: ALeRCE
Reporting Group: ALeRCE     Discovery Data Source: ZTF

A. Munoz-Arancibia, F.E. Bauer, G. Pignata, F. Forster, A. Mourao, 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, 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 2025aok
Discoverer internal name: ZTF25aadiczi
Coordinates (J2000): RA = 00:55:51.385 (13.9641036) DEC = +44:41:33.67 (44.6926865)
Discovery date: 2025-01-31 03:52:10.004 (JD=2460706.6612269)

Potential host galaxy: SDSS J005551.20+444134.2

Remarks: Early SN candidate (r-rise > 0.10+-0.02 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/ZTF25aadiczi

Photometry

Discovery (first detection):
Discovery date: 2025-01-31 03:52:10.004
Flux: 20.401 ABMag
Filter: r-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Remarks: Data provided by ZTF

Last non-detection:
Last non-detection date: 2025-01-24 03:14:15
Limiting flux: 21.1348 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/2025aok