TNS Astronomical Transient Report No. 240388 [ 2025TNSTR..50....1R ]

Date Received (UTC): 2025-01-04 04:00:00
Date made public:
Sender: Fritz
Reporting Group: ZTF     Discovery Data Source: ZTF

Nabeel Rehemtulla (CIERA, NU), Christoffer Fremling (Caltech), Daniel Perley (LJMU), Theophile du Laz (Caltech) on behalf of ZTF report/s the discovery of a new astronomical transient.

IAU Designation: SN 2025ap
Discoverer internal name: ZTF25aaaauxw
Coordinates (J2000): RA = 00:32:17.557 (8.0731539) DEC = +43:43:59.29 (43.7331348)
Discovery date: 2025-01-02 03:26:41.000 (JD=2460677.6435301)


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: 2025-01-02 03:26:41.000
Flux: 19.028 ABMag
Filter: r-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Last non-detection:
Last non-detection date: 2024-12-31 05:20:56
Limiting flux: 20.3608 ABMag
Filter: g-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin


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