See the section Popular culture below for novels and other popular culture related to the Midnight Sun. The midnight sun is a
phenomenon occurring in
latitudes north and nearby to the south of the
Arctic Circle and south and nearby to the north of the
Antarctic Circle where the
sun remains visible at the local midnight. Given fair weather, the sun is visible for a continuous 24 hours, mostly north of the Arctic circle and south of the Antarctic Circle. The number of days per year with potential midnight sun increases the further poleward one goes. There are no permanent human settlements south of the Antarctic Circle, the countries and territories whose population experiences it are limited to the ones crossed by the Arctic Circle, i.e.
Alaska,
Canada,
Greenland,
Norway,
Sweden,
Finland,
Russia, and extremities of
Iceland. A quarter of
Finland's territory lies north of the
Arctic Circle and at the country's northernmost point the sun does not set for 73 days during summer. In
Svalbard, Norway, the northernmost inhabited region of
Europe, there is no sunset from approximately April 19th to August 23rd. The extreme sites are the poles where the sun can be continuously visible for a half year.
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n. พระอาทิตย์เที่ยงคืน