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• 1 Излизане на открито - Манастир Колилия
• 1. The spherical coordinates of the stars

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• 2 Излизане на открито - Манастир Касиан
• 2. Practical applications of the spherical coordinates of the stars

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• 3 Излизане на открито - Търгушор
• 3. The diurnal movement of the stars

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• 4 Излизане на открито - Крепост Хистрия
• 4. The passage of the stars through the first vertical. The culmination of the stars. The elongation of the stars

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• 5. Particular cases of diurnal movement

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• 6. The apparent annual movement of the sun

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• 7. Consequences of the apparent annual motion of the Sun

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• 8. The characteristic of the apparent diurnal motion of the Sun at different latitudes

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• 9. The celestial sphere. The elements of the celestial sphere

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• 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 Касиев манастир
• 16. Daytime movement, classification of stars. Particular cases.
• 17. Solar system. The laws of motion of the stars of the solar system.
• 18.07-19.07.2022 Касиев манастир
• 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.

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• 20-21.08.2021 Манастир Хория, Сеймени
• 20. Time. Astronomical time and sidereal time.
• 21. Time. Board time. Measurement of time on board the ship.
• 22. Nautical ephemeris. Calculation of the meridian angle and the declination of the stars.
• 23. The sextant. Sextant control and adjustment.