Morning Civil twilight begins when:

Question

ATPL - Airline Transport Pilot license - General Navigation - Morning Civil twilight begins when:

QuizVDS · Accepted Answer

The centre of the Sun is 6° below the celestial horizon

QuizVDS · Answer

The Sun's upper edge is tangential to the celestial horizon

QuizVDS · Answer

The centre of the Sun is 18° below the celestial horizon

QuizVDS · Answer

The centre of the Sun is 12° below the celestial horizon

ATPL: Morning Civil twilight begins when: