Why is twilight longer at higher latitudes?

Answer 1

The sun sets in a more slanted/diagonal direction at high latitude locations throughout the year (which is why twilight at these locations can be more than two whole hours), whereas at tropical latitudes the sun sets in a near vertical direction so the twilight period can only be 45-50 minutes.

Answer 2

Twilight is longer at higher latitudes because the Sun's rays hit the Earth at a shallower angle, causing the light to scatter and stay visible for a longer period. This effect is more pronounced at higher latitudes where the Sun's path across the sky is more oblique.

Answer 3

Twilight is the light of the sun below the horizon bouncing off the atmosphere above us. The twilight band is equal width around the world. However, points nearer the north pole or south pole move through the band slower than points nearer the equator, so they remain in the twilight band longer. They move slower because they have less distance to complete the shorter 24-hour latitudinal circle just like the equator has 24 hours to complete it.

Answer 4

The sun sets in a more slanted/diagonal direction at high latitude locations throughout the year (which is why twilight at these locations can be more than two whole hours), whereas at tropical latitudes the sun sets in a near vertical direction so the twilight period can only be 45-50 minutes.