TNS Astronomical Transient Report No. 262401 [ 2025TNSTR2681....1R ]

Date Received (UTC): 2025-07-13 11:43:52
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 2025ran
Discoverer internal name: ZTF25abbedxh
Coordinates (J2000): RA = 00:08:20.900 (2.087082) DEC = -01:33:42.43 (-1.5617871)
Discovery date: 2025-07-13 09:16:33.997 (JD=2460869.8865046)


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: 2025-07-13 09:16:33.997
Flux: 16.9855 ABMag
Filter: i-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Last non-detection:
Last non-detection date: 2025-07-12 11:20:33
Limiting flux: 19.7471 ABMag
Filter: i-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin


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