TNS Astronomical Transient Report No. 242019 [ 2025TNSTR.300....1G ]

Date Received (UTC): 2025-01-22 06:10:02
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: AT 2025zj
Discoverer internal name: BGEM J040808.37-612805.6
Coordinates (J2000): RA = 04:08:08.378 (62.034908) DEC = -61:28:05.62 (-61.468228)
Discovery date: 2025-01-22 01:39:43.000 (JD=2460697.5692477)



Photometry

Discovery (first detection):
Discovery date: 2025-01-22 01:39:43.000
Flux: 19.76 ABMag
Filter: BG-q-BlackGem
Instrument: BlackGEM-Cam4
Telescope: BlackGEM- 4

Last non-detection:
Last non-detection date: 2024-02-17 00:47:25
Limiting flux: 20.85 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/2025zj