TNS Astronomical Transient Report No. 260637 [ 2025TNSTR2486....1T ]

Date Received (UTC): 2025-06-30 10:37:34
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, J. Tweddle (Oxford), L. Rhodes (TSI/McGill), A. Rest (STScI), T.-W. Chen (NCU), C. Stubbs (Harvard), J. S. Sommer (LMU), B. P. Schmidt (ANU), C. Kukuckova, N. Keenan (Belfast High School), E. Boyd (Glenlola Collegiate) report/s the discovery of a new astronomical transient.

IAU Designation: AT 2025pkw
Discoverer internal name: ATLAS25gqi
Coordinates (J2000): RA = 12:33:14.965 (188.312353333) DEC = -14:10:12.08 (-14.1700233333)
Discovery date: 2025-06-29 19:06:25.632 (JD=2460856.29613)



Photometry

Discovery (first detection):
Discovery date: 2025-06-29 19:06:25.632
Flux: 19.098 ABMag
Filter: cyan-ATLAS
Instrument: ATLAS-03
Telescope: ATLAS Sutherland

Last non-detection:
Last non-detection date: 2025-06-24 20:54:30
Limiting flux: 18.11 ABMag
Filter: cyan-ATLAS
Instrument: ATLAS-03
Telescope: ATLAS Sutherland


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