  CCD UBVRI photometry is presented for type IIb SN 2011dh for about 300 days.
The main photometric parameters are derived and the comparison with SNe of
similar types is reported. The light curves are similar to those for SN IIb
2008ax, but the initial flash is stronger and very short, and there are humps
on the light curves in U and B at the onset of linear decline. Preliminary
modeling is carried out, and the results are compared to the quasi-bolometric
light curve and to the light curves in UBVRI bands.

Solar and Stellar Astrophysics