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What conditions need to be just right to have the chance to see the Aurora Borealis?
Wiki User
∙ 9y ago
This depends mainly on your geographic location and how active the sun is at a given time: high latitude and high solar activity are not preconditions, but make Aurora sightings much more likely.
Northern or southern lights mainly can be seen after solar flares, huge eruptions on the surface of the sun, often followed by a coronal mass ejection, where high quantities of plasma (big swarms of electrons and protons) are expulsed. These solar flares can happen frequently when the sun is highly active.
In average, you have a solar activity maximum every 11 years. A couple of years with high solar activity is followed by years with low or almost none (a good indicator is the number of sun spots). At the moment (Jan 09), solar activity is very low, but it is of course expected to increase during the next couple of years.
If you are located at higher latitudes (close to the polar circles / poles), Auroras are much more frequent and can also be observed regularly during times of very low solar activity. During times of high solar activity, it's not so rare to see aurora also at mid latitudes (like central Europe or the more northern states of the USA). Rarely, it can also be watched in low latitude countries.
To get the newest data about the solar activity and polar lights, visit http://www.spaceweather.com
Wiki User
∙ 12y ago
Wiki User
∙ 9y agoBeing at higher latitudes make it easier and more likely that a person will see the Aurora Borealis. At times of high solar activity the Aurora Borealis is also more likely to be seen.
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Why are aurora borealis often seen in the northern latitudes of Canada?
It is because of the high altitude and usually clear skies since it is so close to the north pole. However, the Aurora Borealis is not seen every night. +++ It is not seen only from Alaska and Canada, and you mean latitude, not altitude. The A. Borealis (Northern Lights) is visible right round the world at high latitudes. Similarly with A. Australis (Southern Lights). The aurora are visible from high latitudes, North or South, because they form around the Earth's magnetic poles, which are fairly close to the axis Poles; not because the air is clear (although that will help!) They come and go depending on the vagaries of the streams of charged-particles emitted by the Sun, as their light is a result of the particles' reaction with the Earth's upper atmosphere and magnetic field.
How often do the Northern Lights or Aurora Borealis happen in Nova Scotia?
It is caused by the showers of particles spraying out of the sun and captured by the magnetic field of the earth. So it is not actually on a regular schedule, and actually is happening constantly, but is best seen at night. The brightness and extent is determined by how charged the particles are. The closer you are to the north magnetic pole the more often you will see it.
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The aurora borealis activity increases & decreases on an 11 year cyle, which next peaks in 2013. So, we are getting close to the peak even right now. See the related link for more detailed forecast information.
Why are aurora borealis often seen in the northern latitudes of Canada?
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