TNS Astronomical Transient Report No. 245971 [ 2025TNSTR.769....1J ]

Date Received (UTC): 2025-02-25 19:07:53
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 2025csr
Discoverer internal name: ZTF25aahmcwz
Coordinates (J2000): RA = 17:01:56.738 (255.48640769551) DEC = +23:41:12.58 (23.686828156223)
Discovery date: 2025-02-21 12:05:06.996 (JD=2460728.0035532)

Potential host galaxy: SDSS J170156.73+234112.4

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/ZTF25aahmcwz

Photometry

Discovery (first detection):
Discovery date: 2025-02-21 12:05:06.996
Flux: 20.2351 ABMag
Filter: r-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Remarks: Data provided by ZTF

Last non-detection:
Last non-detection date: 2025-02-19 12:08:25
Limiting flux: 20.18 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://www.wis-tns.org/object/2025csr