TNS Astronomical Transient Report No. 290078 [ 2026TNSTR.497....1M ]

Date Received (UTC): 2026-02-06 12:39:17
Date made public:
Sender: ALeRCE
Reporting Group: ALeRCE     Discovery Data Source: ZTF

A. Munoz-Arancibia, F.E. Bauer, G. Pignata, F. Forster, A. Mourao, J. Correa-Orellana, H. Bommireddy, 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: SN 2026cff
Discoverer internal name: ZTF26aaffpvx
Coordinates (J2000): RA = 11:23:31.644 (170.8818494) DEC = -08:39:15.02 (-8.6541726)
Discovery date: 2026-02-06 08:05:04.004 (JD=2461077.8368519)

Potential host galaxy: NGC 3660

Remarks: Early SN candidate (r-rise > 0.51+-0.01 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/ZTF26aaffpvx

Photometry

Discovery (first detection):
Discovery date: 2026-02-06 08:05:04.004
Flux: 17.0032 ABMag
Filter: r-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Remarks: Data provided by ZTF

Last non-detection:
Last non-detection date: 2026-02-02 10:41:17
Limiting flux: 18.9768 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/2026cff