We observed supernova SN2007so and took CCD images of it 18/19.12.2007 night at THO. Observers: Veli-Pekka Hentunen and Markku Nissinen. SN2007so had been found 13.12.2007 by Lick Observatory Supernova Search program. It is about 17 mag type Ia supernova in galaxy NGC 1109.