TNS Astronomical Transient Report No. 241217 [ 2025TNSTR.202....1M ]

Date Received (UTC): 2025-01-16 17:35:47
Date made public:
Sender: ALeRCE
Reporting Group: ALeRCE     Discovery Data Source: ZTF

A. Munoz-Arancibia, G. Pignata, F.E. Bauer, 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 2025oe
Discoverer internal name: ZTF25aacaqhy
Coordinates (J2000): RA = 13:21:26.418 (200.3600755) DEC = +61:33:22.56 (61.5562674)
Discovery date: 2025-01-16 09:44:23.004 (JD=2460691.9058218)

Potential host galaxy: SDSS J132126.23+613324.3
Host redshift: 0.1355425

Remarks: Early SN candidate (r-rise > 0.09+-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/ZTF25aacaqhy

Photometry

Discovery (first detection):
Discovery date: 2025-01-16 09:44:23.004
Flux: 19.5636 ABMag
Filter: r-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Remarks: Data provided by ZTF

Last non-detection:
Last non-detection date: 2025-01-16 09:41:36
Limiting flux: 19.5737 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/2025oe