TNS Astronomical Transient Report No. 313038 [ 2026TNSTR2825....1S ]

Date Received (UTC): 2026-07-07 08:09:37
Date made public:
Sender: LVRA
Reporting Group: Lasair     Discovery Data Source: Rubin

H. F. Stevance, K. W. Smith, S. J. Smartt (Oxford/QUB), R. D. Williams, G. P. Francis (Edinburgh), D. R. Young (QUB), A. Lawrence, T. M. Sloan (Edinburgh) report/s the discovery of a new astronomical transient.

IAU Designation: AT 2026sej
Discoverer internal name: LSST-AP-DO-170591522029830285
Coordinates (J2000): RA = 20:47:25.878 (311.85782412644) DEC = -22:02:44.88 (-22.045800141084)
Discovery date: 2026-07-07 07:44:49.056 (JD=2461228.82279)



Photometry

Discovery (first detection):
Discovery date: 2026-07-07 07:44:49.056
Flux: 22.0769 ABMag
Filter: i-LSST
Instrument: LSSTCam
Telescope: Rubin Observatory - Simonyi Survey Telescope

Last non-detection:
Archival info: DSS

Details of the new object can be viewed here: https://www.wis-tns.org/object/2026sej