TNS Astronomical Transient Report No. 272173 [ 2025TNSTR3941....1M ]
Date Received (UTC): 2025-10-01 12:45:45
Date made public:
Sender: ALeRCE
Reporting Group: ALeRCE Discovery Data Source: ZTF
A. Munoz-Arancibia, F.E. Bauer, G. Pignata, F. Forster, A. Mourao, 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: AT 2025zhn
Discoverer internal name: ZTF25abugauj
Coordinates (J2000): RA = 17:45:29.565 (266.37318894016) DEC = +54:08:09.30 (54.135916049563)
Discovery date: 2025-09-30 03:48:59.000 (JD=2460948.6590162)
Potential host galaxy: SDSS J174529.81+540809.1
Remarks: SN candidate 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/ZTF25abugauj
Photometry
Discovery (first detection):
Discovery date: 2025-09-30 03:48:59.000
Flux: 19.7986 ABMag
Filter: r-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin
Remarks: Data provided by ZTF
Last non-detection:
Last non-detection date: 2025-09-16 04:53:44
Limiting flux: 20.5024 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://sandbox.wis-tns.org/object/2025zhn
Date Received (UTC): 2025-10-01 12:45:45
Date made public:
Sender: ALeRCE
Reporting Group: ALeRCE Discovery Data Source: ZTF
A. Munoz-Arancibia, F.E. Bauer, G. Pignata, F. Forster, A. Mourao, 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: AT 2025zhn
Discoverer internal name: ZTF25abugauj
Coordinates (J2000): RA = 17:45:29.565 (266.37318894016) DEC = +54:08:09.30 (54.135916049563)
Discovery date: 2025-09-30 03:48:59.000 (JD=2460948.6590162)
Potential host galaxy: SDSS J174529.81+540809.1
Remarks: SN candidate 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/ZTF25abugauj
Photometry
Discovery (first detection):
Discovery date: 2025-09-30 03:48:59.000
Flux: 19.7986 ABMag
Filter: r-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin
Remarks: Data provided by ZTF
Last non-detection:
Last non-detection date: 2025-09-16 04:53:44
Limiting flux: 20.5024 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://sandbox.wis-tns.org/object/2025zhn