TNS Classification Report No. 22263 [ 2025TNSCR4231....1V ]
Date Received (UTC): 2025-10-21 13:33:49 Sender: Tuomas Kangas
Group: None
Jouni Valkjärvi, Emma Johtela, Emily Sageser, Uliana Pylypenko, Tuomas Kangas, Christina Humina, Erkki Kankare (University of Turku), Niko Pyykkinen (NOT) report/s a classification of object: SN 2025aadr
Type: SN IaRedshift: 0.07
Remarks: Classification was done using SNID (Blondin & Tonry 2007 2007ApJ...666.1024B) as part of a remote observing course at the University of Turku. AT 2025aadr is matched by a normal SN Ia around peak. The redshift of AT 2025aadr is based on the SNID fit, as no host galaxy lines are clear in the spectrum.
The following Classification spectrum was provided:
Obsdate: 2025-10-21 03:20:27
Instrument: ALFOSC
Telescope: Nordic Optical Telescope
Details of the object and its spectra can be viewed here: https://www.wis-tns.org/object/2025aadr
Date Received (UTC): 2025-10-21 13:33:49 Sender: Tuomas Kangas
Group: None
Jouni Valkjärvi, Emma Johtela, Emily Sageser, Uliana Pylypenko, Tuomas Kangas, Christina Humina, Erkki Kankare (University of Turku), Niko Pyykkinen (NOT) report/s a classification of object: SN 2025aadr
Type: SN IaRedshift: 0.07
Remarks: Classification was done using SNID (Blondin & Tonry 2007 2007ApJ...666.1024B) as part of a remote observing course at the University of Turku. AT 2025aadr is matched by a normal SN Ia around peak. The redshift of AT 2025aadr is based on the SNID fit, as no host galaxy lines are clear in the spectrum.
The following Classification spectrum was provided:
Obsdate: 2025-10-21 03:20:27
Instrument: ALFOSC
Telescope: Nordic Optical Telescope
Details of the object and its spectra can be viewed here: https://www.wis-tns.org/object/2025aadr