TNS Astronomical Transient Report No. 243511 [ 2025TNSTR.475....1T ]

Date Received (UTC): 2025-02-04 18:10:22
Date made public:
Sender: ATLAS_Bot1
Reporting Group: ATLAS     Discovery Data Source: ATLAS

J. Tonry, L. Denneau, H. Weiland, R. Siverd (IfA, University of Hawaii), N. Erasmus, W. Koorts (South African Astronomical Observatory), A. Jordan, V. Suc (UAI, Obstech), S. J. Smartt, K. W. Smith (Oxford/QUB), D. R. Young, M. Nicholl, M. Fulton, M. McCollum, T. Moore, J. Weston, X. Sheng, C. R. Angus, A. Wilson, A. Aamer, D. Magill (QUB), P. Ramsden (Birmingham/QUB), L. Shingles (GSI/QUB), S. Srivastav, J. H. Gillanders, H. Stevance, A. J. Cooper, F. Stoppa (Oxford), L. Rhodes (TSI/McGill), A. Rest (STScI), T.-W. Chen (NCU), C. Stubbs (Harvard), J. S. Sommer (LMU), B. P. Schmidt (ANU) report/s the discovery of a new astronomical transient.

IAU Designation: SN 2025axg
Discoverer internal name: ATLAS25bkg
Coordinates (J2000): RA = 13:26:06.518 (201.5271575) DEC = +24:43:34.77 (24.726325)
Discovery date: 2025-02-04 12:14:29.184 (JD=2460711.01006)



Photometry

Discovery (first detection):
Discovery date: 2025-02-04 12:14:29.184
Flux: 19.262 ABMag
Filter: cyan-ATLAS
Instrument: ATLAS-02
Telescope: ATLAS Haleakala

Last non-detection:
Last non-detection date: 2025-02-03 12:47:24
Limiting flux: 19.56 ABMag
Filter: cyan-ATLAS
Instrument: ATLAS-02
Telescope: ATLAS Haleakala


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