TNS Astronomical Transient Report No. 271423 [ 2025TNSTR3880....1R ]

Date Received (UTC): 2025-09-26 08:41:04
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: AT 2025yqr
Discoverer internal name: ZTF25abthhzy
Coordinates (J2000): RA = 02:28:04.557 (37.0189887) DEC = +76:56:19.36 (76.9387106)
Discovery date: 2025-09-24 07:15:52.001 (JD=2460942.8026852)


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: 2025-09-24 07:15:52.001
Flux: 20.6983 ABMag
Filter: r-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Last non-detection:
Last non-detection date: 2025-09-21 09:19:05
Limiting flux: 20.5331 ABMag
Filter: r-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin


Details of the new object can be viewed here: https://sandbox.wis-tns.org/object/2025yqr