- 4 Ieșire Cetatea Histria
- 4. The passage of the stars through the first vertical. The culmination of the stars. The elongation of the stars
- 10. Horizontal coordinate systems
- 11. The equatorial coordinate system
- 12. The spherical triangle of position. Spherical trigonometry formulas
- 13. The history of astronomy in time and space. (part I)
- 14. The history of astronomy in time and space. (part II)
- 15. Starry sky. The appearance of the celestial vault.
- 16-17 sept.2022 Casian Monastery
- 16. Daytime movement, classification of stars. Particular cases.
- 17. Solar system. The laws of motion of the stars of the solar system.
- 18. Ecliptic. The consequences of the apparent movement of the sun.
- 19. The apparent motion of the moon. Age and phases of the moon. The apparent motion of the planets.