TNS Astronomical Transient Report No. 259850 [ 2025TNSTR2372....1R ]

Date Received (UTC): 2025-06-24 06:46:02
Date made public:
Sender: BlackGEM_Bot1
Reporting Group: BlackGEM     Discovery Data Source: BlackGEM

G. Ramsay, H. Tranin, F. Stoppa, D. Pieterse, 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 2025otl
Discoverer internal name: BGEM J144701.56+134010.1
Coordinates (J2000): RA = 14:47:01.566 (221.756525) DEC = +13:40:10.16 (13.669489)
Discovery date: 2025-06-24 00:54:07.000 (JD=2460850.537581)



Photometry

Discovery (first detection):
Discovery date: 2025-06-24 00:54:07.000
Flux: 18.87 ABMag
Filter: BG-q-BlackGem
Instrument: BlackGEM-Cam3
Telescope: BlackGEM- 3

Last non-detection:
Last non-detection date: 2025-06-10 01:14:10
Limiting flux: 19.38 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/2025otl