Aug 1

Solar activity

At an early stage of existence of the Department of Astronomy systematic researches concerning solar physics were made by A. Bonov. Besides, some of the first solar physic researches were devoted to the behaviour of the green coronal line 5303 A , as well as of the monochromatic solar corona. When “Sun” division had been […]

Aug 1

Total Solar Eclipses

The Bulgarian scientists showed a strong interest in the total solar eclipse on August 11, 1999. The preparation for the eclipse and the eclipse observations were coordinated by the National Eclipse Committee with a chairman acad. D. Mishev and a secretary prof. V. Dermenjiev. The Committee’s main purpose was a selection and including into the […]

Aug 1

Theoretical Researches

The theoretical researches are devoted by the following problems: • The effects of magnetic energy increasing in a region of a quite strong magnetic field have been researched by means of 2D-hydromagnetic computer simulation for increasing of the magnetic energy in a homogeneous plasma medium (Dermendjiev and Buyukliev, 1987). • The nature of elementary eruptive […]