TNS Astronomical Transient Report No. 265529 [ 2025TNSTR3159....1G ]

Date Received (UTC): 2025-08-12 08:40:19
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 2025tpu
Discoverer internal name: BGEM J184740.50-630939.4
Coordinates (J2000): RA = 18:47:40.504 (281.918767) DEC = -63:09:39.50 (-63.160972)
Discovery date: 2025-08-12 00:34:44.000 (JD=2460899.5241204)



Photometry

Discovery (first detection):
Discovery date: 2025-08-12 00:34:44.000
Flux: 19.25 ABMag
Filter: BG-q-BlackGem
Instrument: BlackGEM-Cam4
Telescope: BlackGEM- 4

Last non-detection:
Last non-detection date: 2025-08-11 03:36:42
Limiting flux: 19.94 ABMag
Filter: BG-q-BlackGem
Instrument: BlackGEM-Cam2
Telescope: BlackGEM- 2


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