TNS Astronomical Transient Report No. 264438 [ 2025TNSTR3000....1M ]

Date Received (UTC): 2025-07-31 12:31:19
Date made public:
Sender: Isaac McMahon
Reporting Group: DESGW     Discovery Data Source: DESGW

Isaac McMahon report/s the discovery of a new astronomical transient.

IAU Designation: AT 2025ssi
Coordinates (J2000): RA = 06:36:35.172 (99.146548) DEC = -37:29:56.63 (-37.499065)
Discovery date: 2025-07-29 09:48:57.600 (JD=2460885.909)

Potential host galaxy: Quaia 1070591
Host redshift: 0.241995


Photometry

Discovery (first detection):
Discovery date: 2025-07-29 09:48:57.600
Flux: 19.68 ABMag
Filter: i-Sloan
Instrument: DECAM
Telescope: CTIO - 4-m Victor M. Blanco Telescope

Last non-detection:
Archival info: SDSS

Details of the new object can be viewed here: https://www.wis-tns.org/object/2025ssi