TNS Astronomical Transient Report No. 286143 [ 2026TNSTR..78....1P ]

Date Received (UTC): 2026-01-09 10:50:57
Date made public:
Sender: Ismael Perez-Fournon
Reporting Group: SGLF     Discovery Data Source: ZTF

I. Pérez-Fournon (IAC and ULL), D. Cano-Morales, I. Correa-Plasencia, A.E. Hernández-Díaz, M. Quintana-Ansaldo, E. Lekaroz-Urriza (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: AT 2026hr
Discoverer internal name: ZTF26aaadhqn
Coordinates (J2000): RA = 10:25:51.364 (156.464017) DEC = +18:32:20.58 (18.53905)
Discovery date: 2026-01-09 10:04:03.000 (JD=2461049.9194792)

Potential host galaxy: SDSS J102551.26+183220.6
Host redshift: 0.08063646

Remarks: SN candidate in the starburst galaxy SDSS J102551.26+183220.6 discovered using the public ZTF alerts, the LSST/ZTF brokers, and our SGLF filters. ZTF light curve available at the LSST/ZTF brokers, e.g.: https://lasair-ztf.lsst.ac.uk/objects/ZTF26aaadhqn/ https://alerce.online/object/ZTF26aaadhqn

Photometry

Discovery (first detection):
Discovery date: 2026-01-09 10:04:03.000
Flux: 18.916 ABMag
Filter: g-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Last non-detection:
Last non-detection date: 2025-12-28 10:59:21
Limiting flux: 19.67 ABMag
Filter: r-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin


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