TNS Astronomical Transient Report No. 301187 [ 2026TNSTR1776....1M ]

Date Received (UTC): 2026-04-23 18:10:30
Date made public:
Sender: ALeRCE
Reporting Group: ALeRCE     Discovery Data Source: ZTF

A. Munoz-Arancibia, F.E. Bauer, G. Pignata, F. Forster, S. Jurado, A. Mourao, A. Alvarez, F. Andrades, A. Bayo, G. Cabrera-Vives, M. Catelan, P.A. Estevez, S. Eyheramendy, B. Galindo, L. Hernandez-Garcia, H. Larranaga, K. Medina, D. Moreno-Cartagena, E. Munoz, I. Reyes, P. Sanchez-Saez, D. Rodriguez-Mancini, on behalf of the ALeRCE broker report/s the discovery of a new astronomical transient.

IAU Designation: AT 2026kmw
Discoverer internal name: ZTF26aatyapy
Coordinates (J2000): RA = 15:24:39.195 (231.1633114) DEC = +09:57:18.07 (9.9550187)
Discovery date: 2026-04-23 09:25:20.001 (JD=2461153.8925926)

Potential host galaxy: DESI J231.1628+09.9500
Host redshift: 0.0774511125

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/ZTF26aatyapy

Photometry

Discovery (first detection):
Discovery date: 2026-04-23 09:25:20.001
Flux: 20.1274 ABMag
Filter: r-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Remarks: Data provided by ZTF

Last non-detection:
Last non-detection date: 2026-04-23 08:52:26
Limiting flux: 20.0511 ABMag
Filter: i-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/2026kmw