TNS Astronomical Transient Report No. 274901 [ 2025TNSTR4297....1F ]
Date Received (UTC): 2025-10-26 15:57:21
Date made public:
Sender: ALeRCE
Reporting Group: ALeRCE Discovery Data Source: ZTF
F. Forster, F.E. Bauer, G. Pignata, A. Munoz-Arancibia, 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, E. Pizarro, 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 2025abru
Discoverer internal name: ZTF25acajccj
Coordinates (J2000): RA = 23:41:11.748 (355.29895028256) DEC = +42:35:38.24 (42.593955602675)
Discovery date: 2025-10-24 06:50:21.002 (JD=2460972.7849653)
Potential host galaxy: SDSS J234111.76+423539.1
Remarks: Early SN candidate (g-rise > 0.15+-0.09 mag/day, r-rise > 0.09+-0.04 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/ZTF25acajccj
Photometry
Discovery (first detection):
Discovery date: 2025-10-24 06:50:21.002
Flux: 20.2442 ABMag
Filter: g-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin
Remarks: Data provided by ZTF
Last non-detection:
Last non-detection date: 2025-10-24 05:00:12
Limiting flux: 20.2313 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/2025abru
Date Received (UTC): 2025-10-26 15:57:21
Date made public:
Sender: ALeRCE
Reporting Group: ALeRCE Discovery Data Source: ZTF
F. Forster, F.E. Bauer, G. Pignata, A. Munoz-Arancibia, 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, E. Pizarro, 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 2025abru
Discoverer internal name: ZTF25acajccj
Coordinates (J2000): RA = 23:41:11.748 (355.29895028256) DEC = +42:35:38.24 (42.593955602675)
Discovery date: 2025-10-24 06:50:21.002 (JD=2460972.7849653)
Potential host galaxy: SDSS J234111.76+423539.1
Remarks: Early SN candidate (g-rise > 0.15+-0.09 mag/day, r-rise > 0.09+-0.04 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/ZTF25acajccj
Photometry
Discovery (first detection):
Discovery date: 2025-10-24 06:50:21.002
Flux: 20.2442 ABMag
Filter: g-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin
Remarks: Data provided by ZTF
Last non-detection:
Last non-detection date: 2025-10-24 05:00:12
Limiting flux: 20.2313 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/2025abru