TNS Astronomical Transient Report No. 270884 [ 2025TNSTR3789....1J ]
Date Received (UTC): 2025-09-21 15:29:43
Date made public:
Sender: ALeRCE
Reporting Group: ALeRCE Discovery Data Source: ZTF
S. Jurado, F.E. Bauer, F. Forster, 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 2025yez
Discoverer internal name: ZTF25absbqwc
Coordinates (J2000): RA = 18:38:40.671 (279.6694609) DEC = +39:11:27.71 (39.1910311)
Discovery date: 2025-09-20 04:13:27.998 (JD=2460938.6760185)
Potential host galaxy: WISEA J183841.27+391129.0
Remarks: Early SN candidate (r-rise > 0.50+-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/ZTF25absbqwc
Photometry
Discovery (first detection):
Discovery date: 2025-09-20 04:13:27.998
Flux: 18.6564 ABMag
Filter: r-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin
Remarks: Data provided by ZTF
Last non-detection:
Last non-detection date: 2025-09-20 03:25:52
Limiting flux: 20.5961 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/2025yez
Date Received (UTC): 2025-09-21 15:29:43
Date made public:
Sender: ALeRCE
Reporting Group: ALeRCE Discovery Data Source: ZTF
S. Jurado, F.E. Bauer, F. Forster, 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 2025yez
Discoverer internal name: ZTF25absbqwc
Coordinates (J2000): RA = 18:38:40.671 (279.6694609) DEC = +39:11:27.71 (39.1910311)
Discovery date: 2025-09-20 04:13:27.998 (JD=2460938.6760185)
Potential host galaxy: WISEA J183841.27+391129.0
Remarks: Early SN candidate (r-rise > 0.50+-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/ZTF25absbqwc
Photometry
Discovery (first detection):
Discovery date: 2025-09-20 04:13:27.998
Flux: 18.6564 ABMag
Filter: r-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin
Remarks: Data provided by ZTF
Last non-detection:
Last non-detection date: 2025-09-20 03:25:52
Limiting flux: 20.5961 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/2025yez