Granules(:
granules... :)
http://en.wikipedia.org/wiki/Sunspot_cycle The definition for sunspot cycle is "the recurring increase and decrease in the number of sunspots over a period averaging about eleven years."
The sunspot cycle is about 11 years long. This can vary somewhat; the current cycle has had an extended minimum with very few sunspots for about 3 years, and even now the sunspot numbers are very low for this point in the cycle.
Present indications are that the current Sunspot Cycle is a fairly quiet one, but this is a very variable measure. The number of sunspots is difficult to predict.The sunspot number is not a simple count of individual spots, and the Wolf Number is conventionally used.The expected maximum will probably be a little delayed, based on predictions.The current cycle is known as number 24.By convention, the cycle is considered to repeat every 11 years, but the cycle may be a 22 year one in fact.The spots drift in general, towards the Sun's Equator, or away from it, depending on the latitude (N or S) from the Sun's equator. Sunspots seldom occur beyond 30o from the Equator.
The last Solar Maximum was in 2002. The Sun is currently at the minimum of the sunspot cycle, perhaps just at the beginning of the new Cycle 24. So far, the Sunspot Number for February is Zero - no sunspots at all this month so far (as of February 8, 2009). You can check the sunspot number, and see fascinating things about things in space each day at www.spaceweather.com. It is currently focusing on photos of Comet Lulin, the Green Comet. _________________________________ The problem with WikiAnswers is that if you ask a question that is time-related, such as "When was the last sunspot maximum?", the answer becomes less and less useful as time goes by. The answer above was from February, 2009; today is April 10, 2014, five years later. The "last sunspot maximum" answer now would be "last month", since we're at or near the Solar Max. It's been a long time coming; the last solar cycle dawdled for a year longer than it should have, and this cycle looks like it's going to be well below the average of previous solar cycles. But the spaceweather.com website, linked below, is still the best resource for questions like this.
granules... :)
http://en.wikipedia.org/wiki/Sunspot_cycle The definition for sunspot cycle is "the recurring increase and decrease in the number of sunspots over a period averaging about eleven years."
They are not expected to grow in number on the contrary the are expected to decrease in number as the number of humans increase.
On July 14, 2007, the Sunspot number was 38. This was late in Solar Cycle 23. You can see the daily sunspot number and interesting astronomical phenomena at spaceweather.com.
They expected an increase in the number of Catholics.
The expected number of older Americans during the period of 2010--2030 will increase dramatically.
11 years
It will increase dramatically.
You shouldn't be posting your homework questions on WikiAnswers; especially not when the question does not include the relevant information. You can see the daily sunspot numbers on http://www.spaceweather.com.
The number of sunspots on the Sun seems to fluctuate in an 11-year cycle. When the sunspot cycle is at its maximum, the Sun is typically covered with sunspots. The last "Solar Max" occurred in 2002.We are currently at the "Solar Minimum"; there are very few sunspots. Strangely, the cycle was expected to start rising a year ago, but the Sun seems to be in an extended calm period. In fact, for over 200 days so far this year, there have been no sunspots at all!You can keep track of the sunspot number and see daily photos of the Sun at spaceweather.com.
Sunspots are a cyclical phenomena. The lowest would be zero.
A sunspot is a dark spot on the sun.The number of sunspots changes in cycles of about 11 years.sometimes there are many, and sometimes there are few.