TNS Astronomical Transient Report No. 269767 [ 2025TNSTR3654....1B ]

Date Received (UTC): 2025-09-11 20:59:55
Date made public:
Sender: Alan Briseno
Reporting Group: None     Discovery Data Source: None

Alan Briseno (ETAMU), Wenlei Chen (OSU) report/s the discovery of a new astronomical transient.

IAU Designation: AT 2022aezl
Coordinates (J2000): RA = 01:37:23.390 (24.347458) DEC = -08:28:38.17 (-8.47727)
Discovery date: 2022-07-30 00:00:00.000 (JD=2459790.5)


Remarks: We report the detection of a possible supernova in the JWST NIRCam imaging of the galaxy cluster WHL0137-08. (GO 2282, PI: Coe Dan). The supernova was discovered in the data from the JWST GO 2282 program, which was designed to directly observe the lensed star Earendel (z = 6.2). The supernova is no longer detected in the data from the VENUS program (GO 6882, PI: Fujimoto Seiji).

Photometry

Discovery (first detection):
Discovery date: 2022-07-30 00:00:00.000
Flux: 26.94 ABMag
Filter: F150W-JWST
Instrument: NIRCam
Telescope: James Webb Space Telescope

Last non-detection:
Archival info: Other
Remarks: Hubble Space Telescope RELICS in 2016

Details of the new object can be viewed here: https://sandbox.wis-tns.org/object/2022aezl