TNS Astronomical Transient Report No. 307636 [ 2026TNSTR2384....1F ]

Date Received (UTC): 2026-06-08 14:29:04
Date made public:
Sender: ALeRCE
Reporting Group: ALeRCE     Discovery Data Source: Rubin

F. Forster, F.E. Bauer, G. Pignata, A. Munoz-Arancibia, 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 2026oqh
Discoverer internal name: LSST-AP-DO-170494726522274634
Coordinates (J2000): RA = 16:45:44.546 (251.43560824568) DEC = -14:11:45.66 (-14.196016069132)
Discovery date: 2026-06-05 04:54:25.822 (JD=2461196.7044655)

Potential host galaxy: WISEA J164544.40-141145.6

Remarks: SN candidate classified using ALeRCE's stamp classifier and the public Rubin/LSST stream. Discovery image and light curve in https://lsst.alerce.online/object/170494726522274634?survey=lsst

Photometry

Discovery (first detection):
Discovery date: 2026-06-05 04:54:25.822
Flux: 22.6223 ABMag
Filter: z-LSST
Instrument: LSSTCam
Telescope: Rubin Observatory - Simonyi Survey Telescope

Remarks: Data provided by Rubin/LSST

Last non-detection:
Archival info: Other
Remarks: LSST non-detection limits not available

Details of the new object can be viewed here: https://www.wis-tns.org/object/2026oqh