TNS Astronomical Transient Report No. 240456 [ 2025TNSTR..43....1F ]
Date Received (UTC): 2025-01-04 18:58:31
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 2025bn
Discoverer internal name: ZTF25aaaktmc
Coordinates (J2000): RA = 00:04:00.235 (1.0009793) DEC = +34:19:43.19 (34.3286635)
Discovery date: 2025-01-04 03:47:11.000 (JD=2460679.6577662)
Potential host galaxy: SDSS J000400.18+341944.6
Host redshift: 0.08989208
Remarks: Early SN candidate (r-rise > 0.53+-0.06 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/ZTF25aaaktmc
Photometry
Discovery (first detection):
Discovery date: 2025-01-04 03:47:11.000
Flux: 19.4485 ABMag
Filter: r-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin
Remarks: Data provided by ZTF
Last non-detection:
Last non-detection date: 2025-01-02 03:13:33
Limiting flux: 20.5171 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/2025bn
Date Received (UTC): 2025-01-04 18:58:31
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 2025bn
Discoverer internal name: ZTF25aaaktmc
Coordinates (J2000): RA = 00:04:00.235 (1.0009793) DEC = +34:19:43.19 (34.3286635)
Discovery date: 2025-01-04 03:47:11.000 (JD=2460679.6577662)
Potential host galaxy: SDSS J000400.18+341944.6
Host redshift: 0.08989208
Remarks: Early SN candidate (r-rise > 0.53+-0.06 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/ZTF25aaaktmc
Photometry
Discovery (first detection):
Discovery date: 2025-01-04 03:47:11.000
Flux: 19.4485 ABMag
Filter: r-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin
Remarks: Data provided by ZTF
Last non-detection:
Last non-detection date: 2025-01-02 03:13:33
Limiting flux: 20.5171 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/2025bn