TNS Astronomical Transient Report No. 259162 [ 2025TNSTR2286....1S ]

Date Received (UTC): 2025-06-19 16:52:02
Date made public:
Sender: BlackGEM_Bot1
Reporting Group: BlackGEM     Discovery Data Source: BlackGEM

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

IAU Designation: SN 2025obf
Discoverer internal name: BGEM J211243.02-230853.3
Coordinates (J2000): RA = 21:12:43.028 (318.179283) DEC = -23:08:53.32 (-23.148144)
Discovery date: 2025-06-19 07:37:28.000 (JD=2460845.8176852)



Photometry

Discovery (first detection):
Discovery date: 2025-06-19 07:37:28.000
Flux: 18.97 ABMag
Filter: BG-q-BlackGem
Instrument: BlackGEM-Cam3
Telescope: BlackGEM- 3

Last non-detection:
Last non-detection date: 2025-06-11 08:27:26
Limiting flux: 19.58 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/2025obf