Crimea. District Bakhchisaray. Village, towers Astrophysical Observatory USSR. Professor AB North and researcher EF Shaposhnikov preparing for filming of the prominences of the sun in the tower of solar coronagraph. At the tower reflective telescope Ph.D. in Physics and Mathematics LS Galkin adjusts the telescope at a star "Tau Cygni. Professor ER Mustel in the lab at work.