Twilight
Joined: Feb 2002
Posts: 247
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From: oxford
From the 7th October till the 4th Mar, there is 24 hour a day darkness at North Pole.
From the 18th March till the 24th September, there is 24 hour a day daylight at the North pole.
But between the 5th -17th March, and then again, from 25th Sep to 6th October, you get 24 hour a day twilight at the North Pole, ie, the Sun is permanently below the horizon, but never lower than 6º depression angle.
From the 18th March till the 24th September, there is 24 hour a day daylight at the North pole.
But between the 5th -17th March, and then again, from 25th Sep to 6th October, you get 24 hour a day twilight at the North Pole, ie, the Sun is permanently below the horizon, but never lower than 6º depression angle.
