9/20/2023 0 Comments Twilight zone midnight sunIn Svalbard, Norway, there is no sunset from April 19 th and August 23 rd, and this is the most inhabited region in Europe. In Hammerfest, May 16th and July 27th are the best time to experience the midnight sun phenomenon. Other places where one can watch the midnight sun is Longyearbyen between April 20th and August 20th. The North Cape of Norway is the northernmost point in Europe and the midnight goes for 76 days. Norway is the best places to watch the midnight sun phenomenon. At the far most North Pole, the sun does not set for six months (March to September). At the northernmost parts of Finland the sun remains up for sixty days. These white night festivals are marked by a spectacular show of fireworks which marks the end of school year.Īlthough there is no settlement south of the Antarctic, there are several countries which cross the Arctic Circle, and which experience midnight sun: Norway, Alaska, Sweden, Greenland, Iceland, Finland, and Canada. Petersburg, Russia hold white night festivals. The White night is a name given to places of high latitudes where the sun sets at 10:00 pm and the rest of the night is never dark. During white nights, art festivals are held throughout the night in many cities in the summer. On white nights, daytime activities are possible since the light is sufficient without artificial lighting. By this time, the sun is less than six or seven degrees below the horizon. White nights occur when areas around the Antarctic experience midday twilight instead of the midnight sun. During the time, the sun must go below twelve to eighteen degrees below the horizon when the polar twilight happens. The astronomical polar night is experienced when the night is continuous, and there is no trace of light. The sun is twelve degrees lower below the horizon during a nautical twilight. The nautical polar night is experienced when no trace of light is seen apart from around midday. During civil twilight, the sun is between zero and six degrees below the horizon. Civil polar night produces a faint glow of light which is seen at midday. Normal outdoor activities may be carried out because there’s light scattering due to atmospheric refraction. Polar twilight happens when the sun goes below the horizon all day in areas located in the borders of the polar circle. There are four types of polar nights: polar twilight, civil polar night, nautical polar night, and astronomical polar night. Areas affected by the polar nights are smaller than that which experience the midnight sun. Polar nights are the opposite of polar days, and occur mostly during the winter, and only within the polar circles. Atmospheric refraction also causes the midnight sun to last a bit longer than six months. A good example is Iceland though not all of it experiences the midnight sun. Atmospheric refraction causes midnight sun to be experienced by some parts of a country that is closer to the poles. A process where light and other electromagnetic waves from a straight-line pass through the atmosphere with air density variation which as a function of height is called atmospheric refraction. The sun is a disc and because of that, the midnight sun might be seen at latitudes below the polar circle. When an equinox occurs, the day and night are almost equal. An equinox occurs when the earth’s equator passes through the sun’s disc. An equinox is experienced when the sun rises once and sets once per year. During an equinox, the sun is at the highest point. The midnight sun phenomena comes about when the sun reaches its highest point during the summer solstice (June 21st in the Northern Hemisphere and December 22nd in the Southern Hemisphere) in either the Northern or Southern hemisphere. Midnight sun can last for days to several months, where days and nights are alike. During this time, the sun remains visible at local midnight. It occurs in some parts north of the Arctic Circle and south of the Antarctic Circle. The midnight sun phenomena, also known as the polar day, where the sun is fully visible day and night.
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