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How often does the cycle of maximum and minimum activity repeat on the sun?
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Which solar phenomenon appears in 10- to 12- year cycles?
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.
What is a solar max?
Solar max (aka solar maximum) refers to period of greatest activity during the solar cycle of the Sun.
When was the last sunspot maximum?
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.
How often does the sunspot cycle repeat itself?
every 11 years
How might Earth be affected by the activity of sunspots on the surface of the sun?
We're not sure why, but when there are very few sunspots during the 11-year "sunspot cycle", or when that cycle slows down, we experience colder than usual weather here on Earth. We've only been tracking sunspots for about 400 years; before then, nobody knew to look for them, or were able to. The sunspot cycle which began last year is Cycle 24. There have been two extended periods of few or no sunspots; one was the Maunder Minimum, from 1645 to 1715, and the Dalton Minimum, from 1790 to 1830. The Maunder Minimum coincides with a period known as the "Little Ice Age", and during the Dalton Minimum the recorded temperatures were perhaps 2-3 degrees below normal. Periods of increased sunspot activities appear to be associated with slightly higher than normal temperatures.
Are the number of sunspots on the sun's surface always the same?
No, sunspot activity increases and decreases. Scientists have observed that the level of sunspot activity follows a cycle of about 11 years (11 years from maximum to maximum and 11 years from minimum to minimum).
What is the minimum speed of bqs blister pack machine?
minimum 5 cycle/min & maximum 45 cycle/min
When wil lthe next sunspot minimum and sunspot maximum occur after the maximum in 2001and the minimum in 2007?
The last sunspot cycle may have ended in December 2008 (Cycle 23). However, due to lack of sunspot activity, scientist are unsure whether cycle 23 has ended yet, or whether cycle 24 is just starting. A rough guess would place the timing around December 2009 but as with everything, nothing is certain, certainly not the sunspot cycle. (The 11 year cycle is a mean value and cannot be taken as precise). Given the approximate 11-year cycle, and assuming that cycle 24 started in January 2009, then the PEAK of sunspot activity should occur about 5 1/2 years from then, around summer 2014. See related links for more information
How does precession effect the minimum and maximum value of earths cycle?
Which Earth cycle are you referring to (there are many). If you want us to answer your questions you must be sure your question is as precise as possible.
What is the definition of pressure ratio?
ratio of maximum to minimum pressure only case of constant volume heat addition in engine cycle
Which solar phenomenon appears in 10- to 12- year cycles?
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.
What is a solar max?
Solar max (aka solar maximum) refers to period of greatest activity during the solar cycle of the Sun.
How do you find amplitude in trigonometry?
The amplitude of a sine (or cosine) curve is the difference between the maximum and minimum values of the curve, measured over a whole cycle.
Does The River Cycle Repeat?
of course!
What is The magnitude of an alternation which varies from zero is called its?
I will first answer this from an electrical viewpoint. The maximum positive excursion from zero would be the PEAK, or MAXIMUM portion of the cycle. From a magnetic point, it would be POSITIVE. The negative excursion of the electrical cycle (below zero) would be the MINIMUM. It would be NEGATIVE from a magnetic perspective.
What is the difference between a circle and a cycle?
A circle is complete and a cycle repeat
Are sunspots most common during a sunspot minimum?
Sunspots are most common during a sunspot (solar magnetic) maximum, this occurs periodically, on an 11 year cycle.
