TNS Astronomical Transient Report No. 263649 [ 2025TNSTR2887....1T ]

Date Received (UTC): 2025-07-25 08:04:03
Date made public:
Sender: BlackGEM_Bot1
Reporting Group: BlackGEM     Discovery Data Source: BlackGEM

H. Tranin, F. Stoppa, 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 2025sbs
Discoverer internal name: BGEM J043050.76-054750.1
Coordinates (J2000): RA = 04:30:50.765 (67.711521) DEC = -05:47:50.19 (-5.797275)
Discovery date: 2025-07-22 09:59:21.000 (JD=2460878.9162153)



Photometry

Discovery (first detection):
Discovery date: 2025-07-22 09:59:21.000
Flux: 17.96 ABMag
Filter: BG-q-BlackGem
Instrument: BlackGEM-Cam4
Telescope: BlackGEM- 4

Last non-detection:
Last non-detection date: 2025-02-04 01:06:18
Limiting flux: 20.54 ABMag
Filter: BG-q-BlackGem
Instrument: BlackGEM-Cam3
Telescope: BlackGEM- 3


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