TNS Astronomical Transient Report No. 320644 [ 2026TNSTR3341....1C ]
Date Received (UTC): 2026-08-17 14:31:45
Date made public:
Sender: Fabrizio Ciabattari
Reporting Group: ISSP Discovery Data Source: ISSP
F. Ciabattari, S. Donati, E. Mazzoni, M. Rossi on behalf of ISSP collaboration report/s the discovery of a new astronomical transient.
IAU Designation: AT 2026zcl
Coordinates (J2000): RA = 23:27:56.200 (351.984167) DEC = +08:46:45.90 (8.779417)
Discovery date: 2026-08-13 23:45:36.000 (JD=2461266.49)
Potential host galaxy: NGC7674
Photometry
Discovery (first detection):
Discovery date: 2026-08-13 23:45:36.000
Flux: 18.9 VegaMag
Filter: Clear-
Instrument: Other
Telescope: Other
Remarks: 0.5m Newtonian telescope + CCD FLI Proline 4710 camera; Monte Agliale Observatory - Borgo a Mozzano - Italy - Italian Supernovae Search Project. The transient was discovered on the night of August 13 blended with a spiral arm of NGC 7674 (scale 1.2 arcsec/pixel) and subsequently confirmed in multiple co-added frames over the following nights. Although the transient is at the detection threshold of our setup its presence was confirmed by cross-referencing with stacked images of the target taken from July 9 to August 3, 2026.
Last non-detection:
Archival info: SDSS
Details of the new object can be viewed here: https://www.wis-tns.org/object/2026zcl
Date Received (UTC): 2026-08-17 14:31:45
Date made public:
Sender: Fabrizio Ciabattari
Reporting Group: ISSP Discovery Data Source: ISSP
F. Ciabattari, S. Donati, E. Mazzoni, M. Rossi on behalf of ISSP collaboration report/s the discovery of a new astronomical transient.
IAU Designation: AT 2026zcl
Coordinates (J2000): RA = 23:27:56.200 (351.984167) DEC = +08:46:45.90 (8.779417)
Discovery date: 2026-08-13 23:45:36.000 (JD=2461266.49)
Potential host galaxy: NGC7674
Photometry
Discovery (first detection):
Discovery date: 2026-08-13 23:45:36.000
Flux: 18.9 VegaMag
Filter: Clear-
Instrument: Other
Telescope: Other
Remarks: 0.5m Newtonian telescope + CCD FLI Proline 4710 camera; Monte Agliale Observatory - Borgo a Mozzano - Italy - Italian Supernovae Search Project. The transient was discovered on the night of August 13 blended with a spiral arm of NGC 7674 (scale 1.2 arcsec/pixel) and subsequently confirmed in multiple co-added frames over the following nights. Although the transient is at the detection threshold of our setup its presence was confirmed by cross-referencing with stacked images of the target taken from July 9 to August 3, 2026.
Last non-detection:
Archival info: SDSS
Details of the new object can be viewed here: https://www.wis-tns.org/object/2026zcl