TNS Astronomical Transient Report No. 246714 [ 2025TNSTR.884....1C ]
Date Received (UTC): 2025-03-04 22:54:16
Date made public:
Sender: Flavio Castellani
Reporting Group: None Discovery Data Source: None
Flavio Castellani report/s the discovery of a new astronomical transient.
IAU Designation: AT 2025dih
Coordinates (J2000): RA = 09:55:43.430 (148.930958) DEC = +69:05:15.40 (69.087611)
Discovery date: 2025-03-04 20:50:43.000 (JD=2460739.3685532)
Potential host galaxy: M81
Remarks: Flavio Castellani report the discovery by F.Castellani, V.Andreoli, R.Belligoli of a PNV on a co-added 24*180 images (Mag.19.2R +-0.2 - USNOB1 catalogue) in the host galaxy M81 at Monte Baldo Observatory, Ferrara di Monte Baldo, Verona, Italy (A99), in the course of Italian Supernovae Search Project using a 0.40m f/7 Dall-Kirkham telescope (+ Moravian G4-9000 KAF CCD unfiltered CCD camera). No stellar source is visible at the position of the transient in our past images including reference image dated 2025/02/20.89375
Photometry
Discovery (first detection):
Discovery date: 2025-03-04 20:50:43.000
Flux: 19.2 ABMag
Filter: Clear-
Instrument: Other
Telescope: Other
Remarks: 0.40m f/7 Dall-Kirkham telescope (+ Moravian G4-9000 KAF CCD unfiltered CCD camera)
Last non-detection:
Last non-detection date: 2025-02-20 21:27:01
Limiting flux: 20.5 ABMag
Filter: Clear-
Instrument: Other
Telescope: Other
Remarks: 0.40m f/7 Dall-Kirkham telescope (+ Moravian G4-9000 KAF CCD unfiltered CCD camera)
Details of the new object can be viewed here: https://www.wis-tns.org/object/2025dih
Date Received (UTC): 2025-03-04 22:54:16
Date made public:
Sender: Flavio Castellani
Reporting Group: None Discovery Data Source: None
Flavio Castellani report/s the discovery of a new astronomical transient.
IAU Designation: AT 2025dih
Coordinates (J2000): RA = 09:55:43.430 (148.930958) DEC = +69:05:15.40 (69.087611)
Discovery date: 2025-03-04 20:50:43.000 (JD=2460739.3685532)
Potential host galaxy: M81
Remarks: Flavio Castellani report the discovery by F.Castellani, V.Andreoli, R.Belligoli of a PNV on a co-added 24*180 images (Mag.19.2R +-0.2 - USNOB1 catalogue) in the host galaxy M81 at Monte Baldo Observatory, Ferrara di Monte Baldo, Verona, Italy (A99), in the course of Italian Supernovae Search Project using a 0.40m f/7 Dall-Kirkham telescope (+ Moravian G4-9000 KAF CCD unfiltered CCD camera). No stellar source is visible at the position of the transient in our past images including reference image dated 2025/02/20.89375
Photometry
Discovery (first detection):
Discovery date: 2025-03-04 20:50:43.000
Flux: 19.2 ABMag
Filter: Clear-
Instrument: Other
Telescope: Other
Remarks: 0.40m f/7 Dall-Kirkham telescope (+ Moravian G4-9000 KAF CCD unfiltered CCD camera)
Last non-detection:
Last non-detection date: 2025-02-20 21:27:01
Limiting flux: 20.5 ABMag
Filter: Clear-
Instrument: Other
Telescope: Other
Remarks: 0.40m f/7 Dall-Kirkham telescope (+ Moravian G4-9000 KAF CCD unfiltered CCD camera)
Details of the new object can be viewed here: https://www.wis-tns.org/object/2025dih