Basic of astronomy

Because astronomy is not regular subject in the school, this web page contain particular “on line” astronomical handbook. It is written at the level  preliminary university book and contain almost all fields of astronomy – from the spherical astronomy and celestial mechanics to the astrophysics and cosmology.

1. Historical development of astronomy
2. Spherical astronomy
3. Astronomical dictionary of celestial mechanics and spherical astronomy
4. Celestial mechanics
5. Planetary system
6. Sun
7. Stars
8. Cosmology