These two circles on the world globe mark the latitude south of which -- the Arctic Circle, or north of which -- the Antarctic Circle, at least one sunrise and one sunset occurs in each 24-hour period.
South of the Antarctic Circle and North of the Arctic Circle, there is at least one 24-hour period without a sunrise or a sunset, depending on the season.
The Arctic Circle is important because it is what determines the maximum inclination of the sun during the summer months. It also marks the start of the area where, for at least one day each year, the sun does not set, and for at least another day each year, the sun does not rise.
No line of latitude on earth has a 'purpose'. They do, however, mark phenomenon about our planet that are important to understand.
These circles of latitude mark the locations north and south of the equator when there is at least one 24-hour period every year with no sunrise or sunset. Beyond these 'circles' the periods increase to the polar extent where the period is six months.
Technically, they are the latitudes farthest from the north and south poles that have a
continuous period of 24 hours without a sunset, and a similar period without a sunrise.
They're the boundaries of the areas around the poles where it's possible
for the sun to stay up (and down) for a full 24 hours or more.
Technically, they are the latitudes farthest from the north and south poles that have a
continuous period of 24 hours without a sunset, and a similar period without a sunrise.
The Arctic Circle.
It is south of the Arctic circle.
The Arctic Circle passes through the Arctic Ocean.
The Arctic Circle is at 66 degrees 32 minutes N latitude. Everything north of the Arctic circle is considered to be the Arctic.
A polar circle is either the Arctic Circle or the Antarctic Circle.
the Himalayas are south of the Arctic Circle
The Arctic Circle
No, the Arctic Circle is an imaginary line.
The arctic circle
Reindeer are only found in the far north near the Arctic Circle.
Arctic Circle
The region north of the Arctic Circle is known as the Arctic.