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How many sunspots per year?
It varies between the years - on an approximate 11 year cycle. It will range from almost zero to 250 sunspots per year. See related link for the numbers counted since 1750.
How do you describe the sunspots cycle?
Over a span of about 11 years, the face of the Sun changes. At the low point of the cycle, the Sun may have no sunspots (dark, somewhat cooler areas on the surface of the Sun) or a few sunspots. As the cycle progresses, more sunspots, and larger more active sunspots will appear, until the "Solar Max" at which time the Sun has many, sometimes dozens of spots. The Sun is likely to be more active with more and stronger solar flares. Then the Sun begins to quiet down, and back to being "blank". The whole cycle generally takes about 11 years, but it can be as little as 9 or as long as 13 years. There have been speculations that the sunspot cycle may be associated with changes in the climate, that when sunspots are abundant, the weather is a bit warmer, and that when sunspots are rare, the climate is cooler. The extremes of this phenomenon so far have been two extended periods (70 and 40 years) with almost no sunspots at all. From 1645 to 1715 (back at the dawn of sunspot observation) astronomers observed very few sunspots. In the 1880's, two astronomers named Maunder correlated the period of very few sunspots with a period of unusually cold weather, and later scientists named this period the Maunder Minimum. A later period of very low sunspot numbers called the Dalton Minimum (1790-1830) is correlated with unusually cold weather as well. We're not sure what the connection is between cool weather and low sunspot numbers, or even if this is really a "connection"; "Once is happenstance, twice is coincidence, three times is enemy action", goes the old saying. There has not yet been a third period of low sunspots AND cold weather to correllate.
How long is the solar cycle?
Our star, the Sun, flips its magnetic N and S poles roughly once every 11 years making a complete cycle (back to the start position) a 22 year event. After the poles flip, the Sun enters a "quiet" phase during which there are very few sunspots (called a solar Minimum), while during the time the poles are flipping the number of sunspots increases (called a solar Maximum). More on the process is obtainable form the related link below.
How many sunspots will there be in 2014?
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.
How many years is the sunspot cycle?
The sunspot cycle is about 11 years in length.
The number of sunspots varies in a cycle that lasts how many years?
11 years, on average.11 years, on average.11 years, on average.11 years, on average.
How many sunspots per year?
It varies between the years - on an approximate 11 year cycle. It will range from almost zero to 250 sunspots per year. See related link for the numbers counted since 1750.
How many sun spots are in the sun?
It changes, because sunspots are not permanent and can come and go on a cycle.
What is a sunspot and the pattern that exists in the number of sunspots that are observed?
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.
How do you describe the sunspots cycle?
Over a span of about 11 years, the face of the Sun changes. At the low point of the cycle, the Sun may have no sunspots (dark, somewhat cooler areas on the surface of the Sun) or a few sunspots. As the cycle progresses, more sunspots, and larger more active sunspots will appear, until the "Solar Max" at which time the Sun has many, sometimes dozens of spots. The Sun is likely to be more active with more and stronger solar flares. Then the Sun begins to quiet down, and back to being "blank". The whole cycle generally takes about 11 years, but it can be as little as 9 or as long as 13 years. There have been speculations that the sunspot cycle may be associated with changes in the climate, that when sunspots are abundant, the weather is a bit warmer, and that when sunspots are rare, the climate is cooler. The extremes of this phenomenon so far have been two extended periods (70 and 40 years) with almost no sunspots at all. From 1645 to 1715 (back at the dawn of sunspot observation) astronomers observed very few sunspots. In the 1880's, two astronomers named Maunder correlated the period of very few sunspots with a period of unusually cold weather, and later scientists named this period the Maunder Minimum. A later period of very low sunspot numbers called the Dalton Minimum (1790-1830) is correlated with unusually cold weather as well. We're not sure what the connection is between cool weather and low sunspot numbers, or even if this is really a "connection"; "Once is happenstance, twice is coincidence, three times is enemy action", goes the old saying. There has not yet been a third period of low sunspots AND cold weather to correllate.
How long is the solar cycle?
Our star, the Sun, flips its magnetic N and S poles roughly once every 11 years making a complete cycle (back to the start position) a 22 year event. After the poles flip, the Sun enters a "quiet" phase during which there are very few sunspots (called a solar Minimum), while during the time the poles are flipping the number of sunspots increases (called a solar Maximum). More on the process is obtainable form the related link below.
How many sunspots will there be in 2014?
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.
How many years is the period of the sunspot?
Individual sunspots can appear and disappear in a single day, or even in just a few hours. On the other hand, some sunspots that disappear as the Sun spins will re-appear 15 days later when the spot becomes visible again. The "sunspot cycle" is typically about 11 years long from peak to peak, but the pattern isn't especially constant. Some cycles take as little as 8 to 9 years, while some stretch out for 15-17 years.
How many years is the sunspot cycle?
The sunspot cycle is about 11 years in length.
How many years will satin sheets last?
How many years satin sheets last varies according to wear and rather you follow the manufacturers recommendations for care. They will last many years if you treat them with care and wash them on the gentle cycle with a mild soap such as Woolite.
What do scientists think Causes sunspots?
Astronomers have known for many years that sunspots are "storms" on the sun's surface, and also that solar prominences seen flaring from the sun during an eclipse probably come from sunspots. what they do not know - yet - is why the sunspots occur in farily regular cycles of many, gradually diminishing to few, and then rising again to many. Times of high sunspot activity are usually also times of high Northern Lights activity and radio interference on earth.
Do solar eruptions have a pattern?
Yes. There is a cycle about 11 years long from the "Solar Minimum" to the "Solar Maximum" to the "Solar Minimum" again. During the minimums, there are few sunspots and not many big flares and eruptions. In 2008, for example, there were 300 days with ZERO sunspots. Today (January 28, 2009) the sunspot number is 11, but for the last week it has been 0. In 5 years or so, we expect the Sun to be very speckled, with sunspot numbers of 300 or more.
