TNS Astronomical Transient Report No. 305065 [ 2026TNSTR2240....1S ]

Date Received (UTC): 2026-05-23 20:43:42
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: AT 2026nmo
Discoverer internal name: ASASSN-26dn
Coordinates (J2000): RA = 14:23:56.626 (215.98594) DEC = -58:37:46.74 (-58.62965)
Discovery date: 2026-05-20 00:14:24.000 (JD=2461180.51)


Remarks: Possible Nova close to the Galactic plane (l/b=314.734/2.103), likely highly dust obscured

Photometry

Discovery (first detection):
Discovery date: 2026-05-20 00:14:24.000
Flux: 14.9 ABMag
Filter: g-Sloan
Instrument: Cassius
Telescope: ASASSN-Cassius

Last non-detection:
Last non-detection date: 2026-05-19 04:04:48
Limiting flux: 17 ABMag
Filter: g-Sloan
Instrument: Paczynski
Telescope: ASASSN-Paczynski


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