TNS Astronomical Transient Report No. 272952 [ 2025TNSTR4066....1F ]
Date Received (UTC): 2025-10-11 23:59:59
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: SN 2025aaaa
Discoverer internal name: ZTF25abwjmwj
Coordinates (J2000): RA = 18:44:49.366 (281.205693) DEC = +58:04:13.71 (58.0704745)
Discovery date: 2025-10-11 05:13:40.002 (JD=2460959.7178241)
Potential host galaxy: GALEXASC J184449.82+580412.4
Remarks: Early SN candidate (g-rise > 0.34+-0.05 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/ZTF25abwjmwj
Photometry
Discovery (first detection):
Discovery date: 2025-10-11 05:13:40.002
Flux: 18.3361 ABMag
Filter: g-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin
Remarks: Data provided by ZTF
Last non-detection:
Last non-detection date: 2025-10-08 05:14:31
Limiting flux: 19.3511 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/2025aaaa
Date Received (UTC): 2025-10-11 23:59:59
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: SN 2025aaaa
Discoverer internal name: ZTF25abwjmwj
Coordinates (J2000): RA = 18:44:49.366 (281.205693) DEC = +58:04:13.71 (58.0704745)
Discovery date: 2025-10-11 05:13:40.002 (JD=2460959.7178241)
Potential host galaxy: GALEXASC J184449.82+580412.4
Remarks: Early SN candidate (g-rise > 0.34+-0.05 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/ZTF25abwjmwj
Photometry
Discovery (first detection):
Discovery date: 2025-10-11 05:13:40.002
Flux: 18.3361 ABMag
Filter: g-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin
Remarks: Data provided by ZTF
Last non-detection:
Last non-detection date: 2025-10-08 05:14:31
Limiting flux: 19.3511 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/2025aaaa