TNS Astronomical Transient Report No. 216617 [ 2024TNSTR2192....1S ]

Date Received (UTC): 2024-07-01 22:35:23
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 2024nnu
Discoverer internal name: ASASSN-24ei
Coordinates (J2000): RA = 01:35:02.388 (23.75995) DEC = +41:14:53.99 (41.24833)
Discovery date: 2024-07-01 12:43:12.000 (JD=2460493.03)

Potential host galaxy: NGC 0605
Host redshift: 0.017048

Remarks: Bright transient discovered after a season break, nuclear source, so could also be a TDE

Photometry

Discovery (first detection):
Discovery date: 2024-07-01 12:43:12.000
Flux: 15.6 ABMag
Filter: g-Sloan
Instrument: Brutus
Telescope: ASASSN-Brutus

Last non-detection:
Last non-detection date: 2024-02-27 02:09:36
Limiting flux: 17.4 ABMag
Filter: g-Sloan
Instrument: Leavitt
Telescope: ASASSN-Leavitt


Details of the new object can be viewed here: https://www.wis-tns.org/object/2024nnu