TNS Astronomical Transient Report No. 293921 [ 2026TNSTR.965....1P ]
Date Received (UTC): 2026-03-08 18:15:26
Date made public:
Sender: Ismael Perez-Fournon
Reporting Group: SGLF Discovery Data Source: Rubin
I. Pérez-Fournon (IAC and ULL), D. Cano-Morales, I. Correa-Plasencia, A.E. Hernández-Díaz, E. Lekaroz-Urriza, M. Quintana-Ansaldo (ULL), F. Poidevin (IAC and ULL), C. Jiménez Ángel (GRANTECAN), R. Shirley (MPE), R. Marques-Chaves (Univ. of Geneva), and S. Geier (GRANTECAN & IAC) on behalf of SGLF report/s the discovery of a new astronomical transient.
IAU Designation: SN 2026fca
Discoverer internal name: LSST-AP-DO-170028526740701203
Coordinates (J2000): RA = 12:27:38.427 (186.910112) DEC = +08:00:53.45 (8.014847)
Discovery date: 2026-02-19 05:57:46.000 (JD=2461090.7484491)
Potential host galaxy: LEDA 1336770
Remarks: Rubin SN candidate discovered using the public LSST alerts, the LSST brokers, and our SGLF filters. LSST light curve available at the LSST brokers, e.g.: https://lasair.lsst.ac.uk/objects/170028526740701203/
Photometry
Discovery (first detection):
Discovery date: 2026-02-19 05:57:46.000
Flux: 20.57 ABMag
Filter: i-LSST
Instrument: LSSTCam
Telescope: Rubin Observatory - Simonyi Survey Telescope
Last non-detection:
Archival info: SDSS
Details of the new object can be viewed here: https://sandbox.wis-tns.org/object/2026fca
Date Received (UTC): 2026-03-08 18:15:26
Date made public:
Sender: Ismael Perez-Fournon
Reporting Group: SGLF Discovery Data Source: Rubin
I. Pérez-Fournon (IAC and ULL), D. Cano-Morales, I. Correa-Plasencia, A.E. Hernández-Díaz, E. Lekaroz-Urriza, M. Quintana-Ansaldo (ULL), F. Poidevin (IAC and ULL), C. Jiménez Ángel (GRANTECAN), R. Shirley (MPE), R. Marques-Chaves (Univ. of Geneva), and S. Geier (GRANTECAN & IAC) on behalf of SGLF report/s the discovery of a new astronomical transient.
IAU Designation: SN 2026fca
Discoverer internal name: LSST-AP-DO-170028526740701203
Coordinates (J2000): RA = 12:27:38.427 (186.910112) DEC = +08:00:53.45 (8.014847)
Discovery date: 2026-02-19 05:57:46.000 (JD=2461090.7484491)
Potential host galaxy: LEDA 1336770
Remarks: Rubin SN candidate discovered using the public LSST alerts, the LSST brokers, and our SGLF filters. LSST light curve available at the LSST brokers, e.g.: https://lasair.lsst.ac.uk/objects/170028526740701203/
Photometry
Discovery (first detection):
Discovery date: 2026-02-19 05:57:46.000
Flux: 20.57 ABMag
Filter: i-LSST
Instrument: LSSTCam
Telescope: Rubin Observatory - Simonyi Survey Telescope
Last non-detection:
Archival info: SDSS
Details of the new object can be viewed here: https://sandbox.wis-tns.org/object/2026fca