of Finnmark (about 70°) in Norway will get a darker "day". On the Canadian territory of Pond Inlet, Nunavut, however, civil polar night lasts from about 16 December until 26 December. Nautical polar night During the nautical polar night period, there is no trace of daylight, except around midday. It happens when there is no nautical twilight and only astronomical twilight occurs at the solar culmination. Nautical twilight happens when the Sun is between six and twelve degrees below the horizon. There is a location at the horizon around midday with more light than others because of refraction. During nautical night, the Sun is lower than 12° below the horizon, so nautical polar night is limited to latitudes above 78° 34', which is exactly 12° within the polar circle, or 11.5° from the pole. The Norwegian territory of Svalbard Ny-Ålesund experiences this from December 12 to 30. Its antipode () experiences this from June 12 to July 1. The Canadian territory of Eureka, Nunavut, experiences this from December 1 to January 10. Its antipode () experiences this from June 1 to July 11. The Russian territory of Franz Josef Land experiences this from November 27 to January 15. Its antipode () experiences this from May 25 to July 17. Alert, Nunavut, the northernmost settlement in Canada and the world, experiences this from November 19 to January 22. Its antipode () experiences this from May 19 to July 25. Oodaaq, a gravel bank at the northern tip of Greenland and a disputed northernmost point of land, experiences this from November 15 to January 27. Its antipode () experiences this from May 13 to July 31. Astronomical polar night The astronomical polar night is a period of continuous night where no astronomical twilight occurs. Astronomical twilight happens when the Sun is between twelve and eighteen degrees below the horizon and astronomical night when it is lower than that. Thus, the astronomical polar night is limited to latitudes above 84° 34', which is exactly 18° within the polar circle, or five and a half degrees from the pole. The only permanent settlement on Earth above this latitude is Amundsen–Scott South Pole Station, the South Pole scientific research station, whose winter personnel are completely isolated from mid-February to late October. During the astronomical polar night, stars of the sixth magnitude, which are the dimmest stars visible to the naked eye, will be visible throughout