TNS Astronomical Transient Report No. 258161 [ 2025TNSTR2177....1M ]
Date Received (UTC): 2025-06-11 14:06:41
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 2025nfx
Discoverer internal name: ZTF25aaumydy
Coordinates (J2000): RA = 14:44:08.806 (221.0366928) DEC = +42:12:34.22 (42.2095058)
Discovery date: 2025-06-11 05:15:51.002 (JD=2460837.7193403)
Potential host galaxy: SDSS J144408.64+421235.5
Host redshift: 0.063288
Remarks: Early SN candidate (g-rise > 0.20+-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/ZTF25aaumydy
Photometry
Discovery (first detection):
Discovery date: 2025-06-11 05:15:51.002
Flux: 19.4738 ABMag
Filter: g-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin
Remarks: Data provided by ZTF
Last non-detection:
Last non-detection date: 2025-06-09 09:41:05
Limiting flux: 19.2838 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/2025nfx
Date Received (UTC): 2025-06-11 14:06:41
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 2025nfx
Discoverer internal name: ZTF25aaumydy
Coordinates (J2000): RA = 14:44:08.806 (221.0366928) DEC = +42:12:34.22 (42.2095058)
Discovery date: 2025-06-11 05:15:51.002 (JD=2460837.7193403)
Potential host galaxy: SDSS J144408.64+421235.5
Host redshift: 0.063288
Remarks: Early SN candidate (g-rise > 0.20+-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/ZTF25aaumydy
Photometry
Discovery (first detection):
Discovery date: 2025-06-11 05:15:51.002
Flux: 19.4738 ABMag
Filter: g-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin
Remarks: Data provided by ZTF
Last non-detection:
Last non-detection date: 2025-06-09 09:41:05
Limiting flux: 19.2838 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/2025nfx