TNS Astronomical Transient Report No. 270431 [ 2025TNSTR3737....1O ]
Date Received (UTC): 2025-09-17 09:37:19
Date made public:
Sender: GOTO_bot
Reporting Group: GOTO Discovery Data Source: GOTO
D. O'Neill, K. Ackley, M. Dyer, J. Lyman, K. Ulaczyk, D. Steeghs, D. Galloway, V. Dhillon, P. O'Brien, G. Ramsay, K. Noysena, R. Kotak, R. Breton, J. Casares, L. Nuttall, B. Godson, T. Killestein, A. Kumar, M. Pursiainen, on behalf of GOTO collaboration report/s the discovery of a new astronomical transient.
IAU Designation: AT 2025xtz
Discoverer internal name: GOTO25heh
Coordinates (J2000): RA = 02:32:33.734 (38.140557) DEC = +40:44:41.86 (40.74496)
Discovery date: 2025-09-17 03:28:49.728 (JD=2460935.645025)
Remarks: This transient was discovered with the assistance of the GOTO Kilonova Seekers Citizen Scientists on Zooniverse. The candidate was flagged by volunteers: Íris Eduarda Forcel Roncada, M.T. Mazzucato, Mayahuel Torres Guerrero, Rosemary Billington, Antonio Pasqua
Photometry
Discovery (first detection):
Discovery date: 2025-09-17 03:28:49.728
Flux: 19.41 ABMag
Filter: L-GOTO
Instrument: GOTO-1
Telescope: GOTO-North
Last non-detection:
Last non-detection date: 2025-07-17 03:19:25
Limiting flux: 18.4 ABMag
Filter: L-GOTO
Instrument: GOTO-1
Telescope: GOTO-North
Details of the new object can be viewed here: https://www.wis-tns.org/object/2025xtz
Date Received (UTC): 2025-09-17 09:37:19
Date made public:
Sender: GOTO_bot
Reporting Group: GOTO Discovery Data Source: GOTO
D. O'Neill, K. Ackley, M. Dyer, J. Lyman, K. Ulaczyk, D. Steeghs, D. Galloway, V. Dhillon, P. O'Brien, G. Ramsay, K. Noysena, R. Kotak, R. Breton, J. Casares, L. Nuttall, B. Godson, T. Killestein, A. Kumar, M. Pursiainen, on behalf of GOTO collaboration report/s the discovery of a new astronomical transient.
IAU Designation: AT 2025xtz
Discoverer internal name: GOTO25heh
Coordinates (J2000): RA = 02:32:33.734 (38.140557) DEC = +40:44:41.86 (40.74496)
Discovery date: 2025-09-17 03:28:49.728 (JD=2460935.645025)
Remarks: This transient was discovered with the assistance of the GOTO Kilonova Seekers Citizen Scientists on Zooniverse. The candidate was flagged by volunteers: Íris Eduarda Forcel Roncada, M.T. Mazzucato, Mayahuel Torres Guerrero, Rosemary Billington, Antonio Pasqua
Photometry
Discovery (first detection):
Discovery date: 2025-09-17 03:28:49.728
Flux: 19.41 ABMag
Filter: L-GOTO
Instrument: GOTO-1
Telescope: GOTO-North
Last non-detection:
Last non-detection date: 2025-07-17 03:19:25
Limiting flux: 18.4 ABMag
Filter: L-GOTO
Instrument: GOTO-1
Telescope: GOTO-North
Details of the new object can be viewed here: https://www.wis-tns.org/object/2025xtz