Fields of Research
- Stellar structure and evolution
- Binary and multiple stars
- Close binary systems
- Radiative transfer in stellar atmospheres
- Supernovae and supernova remnants
- Planetary nebulae
- Interstellar medium
- Astrophysical spectroscopy
- Active galactic nuclei
- Celestial mechanics and astrodynamics
- Asteroids
- Theory of motion of artificial satellites
- Theory of Earth's rotation
- Ephemeris astronomy
- History of astronomy