TNS Astronomical Transient Report No. 240468 [ 2025TNSTR..46....1G ]

Date Received (UTC): 2025-01-04 20:34:02
Date made public:
Sender: BlackGEM_Bot1
Reporting Group: BlackGEM     Discovery Data Source: BlackGEM

P. Groot, H. Tranin, F. Stoppa, D. Pieterse, G. Ramsay, S. Faris, P. Vreeswijk, N. Blagorodnova, J. van Roestel, H. Wichern, S. Scaringi report/s the discovery of a new astronomical transient.

IAU Designation: SN 2025bu
Discoverer internal name: BGEM J032209.37-185224.3
Coordinates (J2000): RA = 03:22:09.373 (50.539054) DEC = -18:52:24.34 (-18.873428)
Discovery date: 2025-01-03 01:18:17.000 (JD=2460678.5543634)



Photometry

Discovery (first detection):
Discovery date: 2025-01-03 01:18:17.000
Flux: 20.23 ABMag
Filter: BG-q-BlackGem
Instrument: BlackGEM-Cam4
Telescope: BlackGEM- 4

Last non-detection:
Last non-detection date: 2025-01-02 01:22:24
Limiting flux: 21.32 ABMag
Filter: BG-q-BlackGem
Instrument: BlackGEM-Cam4
Telescope: BlackGEM- 4


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