ИСТИНА

Photometric and polarimetric observations with telescopes AZT-8 and LX200 were performed for the three SNe: SN2012aw (type IIP), SN2013ej (type IIP), SN2014J (type Ia). As a result of observation treatment, a number of parameters were calculated: the mass of nickel ejected in the explosion, the mass of the ejected shell, the radius of the star-progenitor, the temperature and a photosphere radius distribution depending on the time, relative distribution of energy in the spectrum, the explosion energy. Polarimetric data have provided the information on explosion asymmetry. The parameters obtained were analyzed and compared with the data published in literature on these SNe and other SNe of the same type.