Stars of this type are characterized by changes of several dozen percent of the brightness on an average of half an hour (between 20-40 minutes). A detailed analysis of the observation results confirms that BLAP objects have a temperature of about 30,000 °C, and the cause for the changes in brightness is pulsation. The construction model is similar to giant star models - 96% of the mass is concentrated in a core of only 20% of the radius of the entire star. The rest of the mass is a slightly ruffled envelope that pulsates at rapid rhythm - hence the large amplitude of the glare.
