- Jul 29, 2001
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Every once in a while I like to check out spaceweather.com to see what's going on above us. It seems as though the sun is still unusually quiet, and there still aren't any sunspots.
Normally the sun has an 11 year cycle of maximums and minimums in sunspot activity. We hit a minimum back in summer of '08 and were supposed to start seeing sunspots again at that time, but they still haven't shown themselves.
This phenomenon has happened in the past a few times where the sun has just gone quiet for a few cycles. Each time there has been a mini ice-age with longer, colder winters.
edit: Little update
April 1 update:
April 9 update:
slashdot has a story about this now too
Normally the sun has an 11 year cycle of maximums and minimums in sunspot activity. We hit a minimum back in summer of '08 and were supposed to start seeing sunspots again at that time, but they still haven't shown themselves.
This phenomenon has happened in the past a few times where the sun has just gone quiet for a few cycles. Each time there has been a mini ice-age with longer, colder winters.
edit: Little update
A LITTLE SOLAR ACTIVITY: The sun is in the pits of the deepest solar minimum in almost 100 years. At such a calm time, even a little solar activity is remarkable. Here it is. SOHO recorded the movie on March 16th; it shows a minor CME billowing away from the sun's eastern limb. When the sun is active, we see several such CMEs on a daily basis. Now, the rate is about one per month. That's very little solar activity.
April 1 update:
NO SUNSPOTS: As April begins, the sun has been spotless for 24 consecutive days. How long can the blank spell continue? The longest stretch of blank suns in the past 100 years was 92 days in April, May and June of 1913. To match that streak, today's sun must remain spotless until early June 2009. That's a lot of quiet; stay tuned!
April 9 update:
slashdot has a story about this now too
"The sunspot cycle is behaving a little like the stock market. Just when you think it has hit bottom, it goes even lower. The year 2008 was a bear. There were no sunspots observed on 266 of the year's 366 days (73 percent). To find a year with more blank suns, you have to go all the way back to 1913, which had 311 spotless days. Prompted by these numbers, some observers suggested that the solar cycle had hit bottom in 2008. Maybe not. Sunspot counts for 2009 have dropped even lower. As of March 31st, there were no sunspots on 78 of the year's 90 days (87 percent)..."
