If the earth tilts and the arctic cirlce?

Question

Gets many days of dark or sun light when the earth tilts. Does that mean that they have sunset or sunrise for a couple of days?

Answer 1

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well idk .

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Answer 2

CP – let’s get this straight – the Earth does not tilt.  It is permanently tilted 23.5 deg to the plane of its orbit, and it stays tilted like that (at least for your lifetime).

But obviously, if it has that tilt to its orbit, the N-S axis will lean towards the sun or away, depending on the time of year.  However, that axis will always generally point to the pole star.

In the other aspects of your question, you are correct.  Much of the early and late summer in the Arctic will feel like dusk or twilight, as the sun either grazes the horizon for long periods, or doesn’t quite rise for long periods.

The effects get more pronounced the nearer to the pole

Answer 3

You are correct, in the arctic circle, during summer, the Sun is up for many months at a time and during winter the sun won't rise for many months at a time.  Since the Sun moves so slowly in the sky, a sunset can skim along the horizon and take quite a long while to set.  The closer you are to the true north pole, the longer the sun takes to set.  (I'm assuming that we consider that this time is the time between the when the sun's bottom touches the horizon until when the sun completely disappears below the horizon)

The sun's angular size is half a degree, the length of a year is roughly 365 days while there are 360 degrees in a circle.  At the north pole, the Sun only sets because the Earth moves around the sun causing the Earth's axis to point away from the Sun.  

I estimate that the time the sun takes to set (top to bottom) at the North pole will be roughly a little over 12 hours, or half a day.  I used the following equation.

days to set= 365 days per year / 360 degrees per year * 0.5 degrees

The farther you are from the North Pole , the faster the Sun will set so this time length is an upper limit.

Answer 4

If you are sitting exactly on the pole, as winter comes you will see the sun circle around you getting lower and lower and finally go below the horizon to stay for 6 months.  However, if you are above the arctic circle but not on the pole, there will be a variable number of days when the sun rises and sets, after which it will stay below the horizon.

So if I understand your question, then you are correct for off-pole locations.

Answer 5

no but for periods just before full darkness the Sun never completely rises.  it will rise like half way then set again and as it slowly changes it get to a point where only a sliver will come up for a few miniutes then no sun at all