Aurora borealis (or the northern lights) most often occur from September to October and from March to April. Best conditions are clear moonless skies and cold temperatures. ... Read more about the Northern Lights here. ...
http://www.360cities.net/image/northern-lights-at-ingve...
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How high up are the Northern Lights? Most aurorae occur between 90 and 130 km above sea level, but some, particularly the ray-like forms, extend to several hundred kilometers up.
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www.tgo.uit.no/articl/nord_eng.html
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It depends on many factors, but mainly on how close you are to one of the Earth's magnetic poles (the north magnetic pole is in the eastern Canadian arctic) and where we are in the 11 year cycle of solar activity. At present we are just pas...
http://answers.yahoo.com/question/index?qid=20080412191...
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The aurora borealis (the Northern Lights) and the aurora australis (the Southern Lights) have always fascinated mankind, and people even travel thousands of miles just to see the brilliant light shows in the earth's atmosphere. ... Sunspot activity follows an 11-year cycle. The next peak will occur in 2011 and 2012,
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www.howstuffworks.com/question471.htm
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The northern and southern lights occur whenever sunspot activity is high, but the degree of sunspot activity is erratic. It is difficult to pinpoint exactly when they will occur. One can usually notice increased sunspot activity when radio ...
http://www.arcamax.com/trivia/s-346624-538316
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The aurora borealis, or northern lights, occur when the weather is cold and the sky clear. Sometimes they are a milky white, sometimes they are all the colours of the rainbow. They are a phenomenon associated with the north and so it should be no surprise that the Inuit have a legend to explain them.
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www.umanitoba.ca/cm/cmarchive/vol22no1/revnorthernlight...
www.umanitoba.ca/cm/cmarchive/vol22no1/revnorthernlights.html
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In the upper atmosphere usually in latitudes above 50 degrees.
http://wiki.answers.com/Q/Where_do_the_Northern_Lights_...
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Northern Lights Continue to Impress Lucky Viewers; By Robert Roy Britt; Senior Science Writer posted: 07:00 am ET; 17 September 2002; ... He said some of the most powerful solar eruptions, and therefore strong aurora, often occur during this second peak, but no one knows why.
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www.space.com/scienceastronomy/planetearth/aurora_watch...
www.space.com/scienceastronomy/planetearth/aurora_watching_020917-1.html
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~How the Northern Lights Occur~ ... These collisions give off energy we see as colored lights. Some scientists, studying the south , believe, and are almost certain the Aurora Australis (Southern Lights) are caused by sun reflections on jagged ice...
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www.asij.ac.jp/elementary/projects/5-m/light/maeganl/oc...
www.asij.ac.jp/elementary/projects/5-m/light/maeganl/occur.htm
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