All the time. Visible mostly in winter because that is when the sky is darkest.
Canada, in the north. (i know you can see them in the Yukon in the spring)
I'm think you are referring to the big solar flare of 1859.
The Northern Lights, or Aurora Borealis, are glowing bands, circles and streams of colored lights that sometimes appear in the northern latitudes.pretty much there lights that apear in the sky at a pecific time of year.
Aurora Borealis occurs in the northern hemisphere, and its companion, Aurora Australis in the Southern hemisphere.Both are caused by a torrent of charged particles from our Sun, and which are directed by the earth's magnetic poles towards those poles.This occurrence is most common during solar storms and sunspot activity, which occurs in an 11-year (or 22-yeaar) cycle.In intense solar storms, they may even be seen as far south in the USA as Texas, but very rarely. Under these conditions, the excess of charged particles can damage electrical and telephone wiring (and transformers), by causing large currents to flow.
Aurora Borealis for the northern lights and aurora australis for the southern lights. They can be red, blue, green, even violet. They occur in the winter. ADDED: Actually they occur at any time of year. They are not seasonal, but are much more likely to be visible in Winter simply because the skies are darker and for longer each day. I have been lucky enough to see them, while on holiday in Norway, and that in late August.
Mostly during winter (skies are darkest then).
It hapens once a year in Alaska.
Canada, in the north. (i know you can see them in the Yukon in the spring)
One effect is the aurora borealis or Northern lights which are very beautiful this time of year. High electro magnetic activity.
I don't will ever appear in the U.S. It only happens once a year in Alaska.
I'm think you are referring to the big solar flare of 1859.
The Aurora Borealis (Northern lights) and the Aurora Australis (Southern lights) both "shine" all year round. They are caused by energized particles from the sun striking the Earth's Magnetosphere.
The Northern Lights, or Aurora Borealis, are glowing bands, circles and streams of colored lights that sometimes appear in the northern latitudes.pretty much there lights that apear in the sky at a pecific time of year.
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.
Aurora Borealis occurs in the northern hemisphere, and its companion, Aurora Australis in the Southern hemisphere.Both are caused by a torrent of charged particles from our Sun, and which are directed by the earth's magnetic poles towards those poles.This occurrence is most common during solar storms and sunspot activity, which occurs in an 11-year (or 22-yeaar) cycle.In intense solar storms, they may even be seen as far south in the USA as Texas, but very rarely. Under these conditions, the excess of charged particles can damage electrical and telephone wiring (and transformers), by causing large currents to flow.
Aurora Borealis for the northern lights and aurora australis for the southern lights. They can be red, blue, green, even violet. They occur in the winter. ADDED: Actually they occur at any time of year. They are not seasonal, but are much more likely to be visible in Winter simply because the skies are darker and for longer each day. I have been lucky enough to see them, while on holiday in Norway, and that in late August.
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.