TNS Astronomical Transient Report No. 289891 [ 2026TNSTR.474....1R ]

Date Received (UTC): 2026-02-04 02:56:34
Date made public:
Sender: BTSbot_bot
Reporting Group: ZTF     Discovery Data Source: ZTF

Nabeel Rehemtulla (CIERA, NU), Wynn Jacobson-Galán (Caltech), Theophile du Laz (Caltech) on behalf of ZTF report/s the discovery of a new astronomical transient.

IAU Designation: SN 2026cbj
Discoverer internal name: ZTF26aaemsud
Coordinates (J2000): RA = 03:08:03.818 (47.0159085) DEC = -13:22:13.46 (-13.3704067)
Discovery date: 2026-02-01 03:33:23.002 (JD=2461072.6481829)


Remarks: Bright (m_peak <= 18.5) transient candidate identified autonomously by BTSbot (Rehemtulla et al. 2024; arXiv:2401.15167).

Photometry

Discovery (first detection):
Discovery date: 2026-02-01 03:33:23.002
Flux: 19.053 ABMag
Filter: r-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Last non-detection:
Last non-detection date: 2026-01-30 03:59:45
Limiting flux: 18.6372 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/2026cbj