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people who study the sun said that solar flares happens approximately every 11 years. some are small. 93 million miles away... an angry sun vents its rage. Dark regions, called sunspots, appeared unexpectedly on its surface... a sign of rising tension within. It had been three and a half years since the sun last erupted in fury...at the peak of an 11-year cycle of solar flare-ups.
A solar eruption in 1859 was so powerful it set fire to telegraph offices... several people got nasty electric shocks, simply because they were working with metal objects... and for the next few nights, auroras were reportedly bright enough to read by.
This 11 year cycle is part of a larger 22 year magnetic cycle in the sun where the polarity of magnetic field lines switch causing the flares. It is said every 11 years because that is when the North and South poles of the sun switch, but it takes another 11 years on top of that before they revert back.
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∙ 12y ago
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What changes in 11-year cycles?
Solar flares and sun spots cycle every 11 years. i.e. Every 11 years solar flares are at a maximum before repeating the cycle.
When are Auroras most likely to occur?
During the most active times of the Sun's 11-year cycle of emissions, so every 11 years. I think this year is one such.
Why do sunspots move across the face of the sun?
It's due to magnetic activity, every 11 years the sunspots explode and begin to form elsewhere.
Sun spots increase and decrease on a cycle of how many years?
11 years
What did the Apollo 11 do?
Apollo 11 brought up the sun in the morning and took it down every night
What are sun spots on the sun?
the sun spots like black little spots on the sun that explode every 11 years
Every 11 years there is a peak in the number of them?
sunspots (apex)
What changes in 11-year cycles?
Solar flares and sun spots cycle every 11 years. i.e. Every 11 years solar flares are at a maximum before repeating the cycle.
What are facts about on the sun?
The age of the Sun is estimated to be: 4.6 billion years. Every 11 years sunspots 'explode. 100,000,000,000 tons of TNT' would have to be exploded almost every second to match the energy produced by the Sun every second.
Every years the suns activity increases?
Every 11 years (or thereabouts, it varies a little) the sun's activity peaks with a sunspot solar maxima.
What wold a solar flare do if it reached earth?
It would wipe out all electricity. a solar flare occurs every 11 years.
What happens every 823 years?
There is an internet hoax going around claiming that certain occurrences of five days in a month occur every 823 years. For examples, in October 2010, there were five Fridays, Saturdays, and Sundays. However, this occurrence occurs at the most every 11 years. The next time five Fridays, Saturdays, and Sundays occurs in a month is March 2013. The next time it occurs in October is October 2021.
When are Auroras most likely to occur?
During the most active times of the Sun's 11-year cycle of emissions, so every 11 years. I think this year is one such.
Why do sunspots move across the face of the sun?
It's due to magnetic activity, every 11 years the sunspots explode and begin to form elsewhere.
How often does a sun spot occur?
about 11 years
Sun spots increase and decrease on a cycle of how many years?
11 years
How may sun spots does the sun have?
Sunspots are not permanent features on the sun but rather areas of dark on the surface due to magnetic activity. The sun goes through phases of solar maximum where sunspot activity is higher to solar minimum where there are less sun spots. It is not uncommon to see 200+ sunspots a year at solar maximum. Solar maxima occurs every 11-12 years. The last one in 2001 and the next estimated in 2013. Interestingly scientist believe that the level of solar activity is greater now than at any time for the last 1000 years.
