TNS Astronomical Transient Report No. 293300

Date Received (UTC): 2026-02-28 08:00:38
Date made public:
Sender: Julien Peloton
Reporting Group: Fink     Discovery Data Source: Rubin

Julien Peloton, Anais Moller, Emille E. O. Ishida on behalf of the Fink Collaboration report/s the discovery of a new astronomical transient.

IAU Designation: SN 2026eqf
Discoverer internal name: LSST-AP-DO-313994139532263447
Coordinates (J2000): RA = 03:33:00.327 (53.251362) DEC = -27:51:39.74 (-27.861039)
Discovery date: 2026-01-16 02:50:50.653 (JD=2461056.6186418)


Remarks: SNe candidate classified by Fink using the public Rubin LSST stream. Object data at https://lsst.fink-portal.org/313994139532263447. Now at magnitude 19.4, and peak not yet reached. Two nearby sources within 5 arcseconds reported decades ago: AT 2023aefc & SN 1999gu (SN II).

Photometry

Discovery (first detection):
Discovery date: 2026-01-16 02:50:50.653
Flux: 23.0505 ABMag
Filter: r-LSST
Instrument: LSSTCam
Telescope: Rubin Observatory - Simonyi Survey Telescope

Remarks: Data provided by LSST, classified by Fink

Last non-detection:
Archival info: Other
Remarks: LSST. Two nearby sources reported decades ago: AT 2023aefc & SN 1999gu

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