What is a night flight

What is the night flight of a plane, flying high in the dark doesn’t affect the vision?

Let’s take a look.

The “night” in the night flight is not the time after midnight in the common sense, because the light time is different in different seasons.

So our “night” is actually determined by the sun.

Every day observatories around the world send standard sunrise and sunset times to local aviation authorities.

The “night” of night flight actually refers to the time from half an hour before sunset to half an hour after sunrise of the next day.

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