TNS Astronomical Transient Report No. 256107 [ 2025TNSTR1911....1S ]

Date Received (UTC): 2025-05-23 15:12:48
Date made public:
Sender: Krzysztof Stanek
Reporting Group: ASAS-SN     Discovery Data Source: ASAS-SN

K. Z. Stanek, J. Callahan, for the ASAS-SN team report/s the discovery of a new astronomical transient.

IAU Designation: AT 2025lkr
Discoverer internal name: ASASSN-25bz
Coordinates (J2000): RA = 16:36:54.235 (249.225979) DEC = -50:20:34.80 (-50.343)
Discovery date: 2025-05-20 02:24:00.000 (JD=2460815.6)


Remarks: Possible Galactic Nova, close to the Galactic plane in a region of high dust extinction

Photometry

Discovery (first detection):
Discovery date: 2025-05-20 02:24:00.000
Flux: 14.8 ABMag
Filter: g-Sloan
Instrument: Payne-Gaposchkin
Telescope: ASASSN-Payne-Gaposchkin

Last non-detection:
Last non-detection date: 2025-05-17 06:14:24
Limiting flux: 17.7 ABMag
Filter: g-Sloan
Instrument: Payne-Gaposchkin
Telescope: ASASSN-Payne-Gaposchkin


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