Structural changes in solar corona during total solar eclipses

VUTBR Brno, Czech Republicemail: druckmuller@vutbr.czAbstract. Total solar eclipses observed on the long baseline allow to obtain the pictures ofwhite-light solar corona with the long temporal distance. New mathematical methods of coronalpictureprocessingallowvisualizationofveryfaintcoronalstructuresandenabletocomparetheirposition in corona with very high accuracy. We can detect the moving of these faint structuresby comparing of pictures obtained on the different places during the same total solar eclipse.Some techniques and results are described in this paper.Keywords. Sun, corona, atmospheric motions