TNS Classification Report No. 22276 [ 2025TNSCR4263....1P ]

Date Received (UTC): 2025-10-23 12:42:15
Sender: Christina Humina
Group: None

Uliana Pylypenko, Emily Sageser, Jouni Valkjärvi, Emma Johtela, Christina Humina, Tuomas Kangas, Erkki Kankare (University of Turku), Niko Pyykkinen (NOT) report/s a classification of object: SN 2025aasv

Type: SN Ia
Redshift: 0.069

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 2025aasv is best matched with type Ia. Redshift is calculated from the Na ID line clearly visible in the spectra. The spectrum looks reddened consistent with the strong Na ID line.

The following Classification spectrum was provided:

Obsdate: 2025-10-22 20:46:03
Instrument: ALFOSC
Telescope: Nordic Optical Telescope

Details of the object and its spectra can be viewed here: https://sandbox.wis-tns.org/object/2025aasv