TNS Astronomical Transient Report No. 299145 [ 2026TNSTR1462....1S ]

Date Received (UTC): 2026-04-07 20:19:58
Date made public:
Sender: Krzysztof Stanek
Reporting Group: ASAS-SN     Discovery Data Source: ASAS-SN

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

IAU Designation: SN 2026iur
Discoverer internal name: ASASSN-26cn
Coordinates (J2000): RA = 09:54:32.050 (148.63354) DEC = -01:17:25.84 (-1.29051)
Discovery date: 2026-04-07 00:14:24.000 (JD=2461137.51)

Potential host galaxy: NGC 3047A
Host redshift: 0.020531

Remarks: Present in multiple epochs, on the rise. Nuclear source, so could also be a TDE or AGN activity.

Photometry

Discovery (first detection):
Discovery date: 2026-04-07 00:14:24.000
Flux: 15.9 ABMag
Filter: g-Sloan
Instrument: Cassius
Telescope: ASASSN-Cassius

Last non-detection:
Last non-detection date: 2026-03-28 00:00:00
Limiting flux: 17.2 ABMag
Filter: g-Sloan
Instrument: Paczynski
Telescope: ASASSN-Paczynski


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