Several instruments are used daily for various kinds of observations, e.g. 2-m stellar telescope, photometric telescope, multichannel solar flare spectrograph, solar magnetograph, solar telescope, solar radiospectrographs, meteor radar, photographic zenith tube, photographic European fireball network, etc.

The work of the Astronomical Institute provides a good example of international collaboration. Through the computer network we not only distribute our observations to world data centers, but also we obtain information from other ground-based observatories as well as from instruments operating on satellites.

The received data are analyzed and compared with physical models. Several processes in the above mentioned fields are numerically simulated on computers, e.g. the solar flare shock propagation in the heliosphere.