TNS Astronomical Transient Report No. 271299 [ 2025TNSTR3863....1R ]

Date Received (UTC): 2025-09-25 11:57:37
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 2025ynp
Discoverer internal name: ZTF25absxyyr
Coordinates (J2000): RA = 07:15:41.388 (108.9224514) DEC = +09:14:23.78 (9.2399402)
Discovery date: 2025-09-23 10:22:39.999 (JD=2460941.9324074)


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: 2025-09-23 10:22:39.999
Flux: 18.3799 ABMag
Filter: r-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Last non-detection:
Last non-detection date: 2025-09-07 12:20:10
Limiting flux: 19.4753 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/2025ynp