TNS Astronomical Transient Report No. 313040 [ 2026TNSTR2825....1S ]

Date Received (UTC): 2026-07-07 08:13:04
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 2026sel
Discoverer internal name: LSST-AP-DO-170591522485960965
Coordinates (J2000): RA = 21:07:07.633 (316.78180281241) DEC = -19:55:16.98 (-19.921382797179)
Discovery date: 2026-07-07 07:47:34.944 (JD=2461228.82471)



Photometry

Discovery (first detection):
Discovery date: 2026-07-07 07:47:34.944
Flux: 21.7246 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/2026sel