TNS Astronomical Transient Report No. 241103 [ 2025TNSTR.190....1M ]

Date Received (UTC): 2025-01-15 12:16:55
Date made public:
Sender: ALeRCE
Reporting Group: ALeRCE     Discovery Data Source: ZTF

A. Munoz-Arancibia, A. Mourao, F. Forster, F.E. Bauer, G. Pignata, 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: SN 2025mg
Discoverer internal name: ZTF25aabxywm
Coordinates (J2000): RA = 07:16:54.240 (109.2259983) DEC = +67:06:31.88 (67.1088547)
Discovery date: 2025-01-15 07:48:51.002 (JD=2460690.8255903)

Potential host galaxy: SDSS J071652.72+670640.0

Remarks: Early SN candidate (r-rise > 0.32+-0.03 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/ZTF25aabxywm

Photometry

Discovery (first detection):
Discovery date: 2025-01-15 07:48:51.002
Flux: 18.4328 ABMag
Filter: r-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Remarks: Data provided by ZTF

Last non-detection:
Last non-detection date: 2025-01-13 10:17:40
Limiting flux: 18.8183 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/2025mg