TNS Astronomical Transient Report No. 196933 [ 2023TNSTR3317....1G ]

Date Received (UTC): 2023-12-19 09:15:02
Date made public:
Sender: Paul Groot
Reporting Group: BlackGEM     Discovery Data Source: BlackGEM

Paul Groot (Radboud/UCT/SAAO), Fiore Stoppa (Radboud), Gavin Ramsay (Armagh), Jan van Roestel (UvA), Nadia Blagorodnova (UBarcelona) report/s the discovery of a new astronomical transient.

IAU Designation: AT 2023aand
Discoverer internal name: BGEM J095941.33-263034.2
Coordinates (J2000): RA = 09:59:41.323 (149.92218) DEC = -26:30:34.20 (-26.5095)
Discovery date: 2023-12-18 05:46:39.000 (JD=2460296.7407292)

Potential host galaxy: WISExSuperCOSMOSJ095941.30-263033.4
Host redshift: 0.07409


Photometry

Discovery (first detection):
Discovery date: 2023-12-18 05:46:39.000
Flux: 19.66 ABMag
Filter: BG-q-BlackGem
Instrument: BlackGEM-Cam4
Telescope: BlackGEM- 4

Remarks: Host-subtracted magnitude

Last non-detection:
Last non-detection date: 2023-12-16 06:49:58
Limiting flux: 20.8 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/2023aand