TNS Astronomical Transient Report No. 270188 [ 2025TNSTR3707....1S ]
Date Received (UTC): 2025-09-15 12:03:02
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: AT 2025xpu
Discoverer internal name: BGEM J180740.07-691737.5
Coordinates (J2000): RA = 18:07:40.075 (271.916979) DEC = -69:17:37.48 (-69.293744)
Discovery date: 2025-09-10 00:19:16.000 (JD=2460928.5133796)
Photometry
Discovery (first detection):
Discovery date: 2025-09-10 00:19:16.000
Flux: 19.64 ABMag
Filter: BG-q-BlackGem
Instrument: BlackGEM-Cam4
Telescope: BlackGEM- 4
Last non-detection:
Last non-detection date: 2025-09-02 23:55:57
Limiting flux: 19.34 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/2025xpu
Date Received (UTC): 2025-09-15 12:03:02
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: AT 2025xpu
Discoverer internal name: BGEM J180740.07-691737.5
Coordinates (J2000): RA = 18:07:40.075 (271.916979) DEC = -69:17:37.48 (-69.293744)
Discovery date: 2025-09-10 00:19:16.000 (JD=2460928.5133796)
Photometry
Discovery (first detection):
Discovery date: 2025-09-10 00:19:16.000
Flux: 19.64 ABMag
Filter: BG-q-BlackGem
Instrument: BlackGEM-Cam4
Telescope: BlackGEM- 4
Last non-detection:
Last non-detection date: 2025-09-02 23:55:57
Limiting flux: 19.34 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/2025xpu