ATPL: What is the definition of "morning civil twilight"?
Domanda 420, General Navigation - ATPL - Airline Transport Pilot license
| Morning civil twilight is the period in the morning from the centre of the Sun is 6° below the horizon until the upper limb of the Sun appears at the horizon. |
| The period of semi-darkness in morning. |
| The period when the Sun, in the morning, has its centre between 6° under the horizon and the horizon. |
| The period in the morning, just before sunrise. |
