It has been suggested that this article or section be merged with Schwabe-Wolf cycle. (Discuss)

20 years of merged irradiance data from satellite

Wolfer number since 1750.

The Schwabe solar cycle is the eleven-year cycle of solar activity of the sun. Wikipedia does not have an article with this exact name. ... It has been suggested that this article or section be merged with Solar cycle. ... Image File history File links Pic of 20 years of solar output data. ... Image File history File links Pic of 20 years of solar output data. ... Image File history File links International sunspot number since 1750. ... Image File history File links International sunspot number since 1750. ... The Wolfer number (also known as the International sunspot number, relative sunspot number, Wolf number, or Zürich number) is a quantity which measures both the number and size of sunspots. ... Events March 2 - Small earthquake in London, England April 4 - Small earthquake in Warrington, England August 23 - Small earthquake in Spalding, England September 30 - Small earthquake in Northampton, England November 16 – Westminster Bridge officially opened Jonas Hanway is the first Englishman to use an umbrella James Gray reveals her sex... Samuel Heinrich Schwabe (October 25, 1789–April 11, 1875) was a German astronomer. ... The Sun is the star at the center of our Solar system. ...

At periods of highest activity, known as solar maximum or solar max, sunspots appear. Periods of lowest activity are known as solar minimum. The last solar maximum was in 2001. The solar cycle is not strictly 11 years; it has been as short as 9 years and as long as 14 years in recent years. Solar maximum or solar max is the period of greatest solar activity in the solar cycle of the sun. ... A sunspot is a region on the Suns surface (photosphere) that is marked by a lower temperature than its surroundings and intense magnetic activity. ... Solar minimum is the period of least solar activity in the solar cycle of the sun. ... 2001: A Space Odyssey. ...

As the image shows, the solar constant has varied by about 0.1% or 1 w/m² from its mean value of approximately 1366 w/m² over the last two solar cycles. Solar irradiance spectrum at top of atmosphere. ...

The Babcock Model explains the 11 and 22 year cycles as being due to a shedding of entangled magnetic fields. The Babcock Model describes a mechanism which can explain magnetic and sunspot patterns observed on the Sun. ...

For more details on solar cycles, see the solar variation article. 20 years of solar irradiance data from satellites Solar variations are fluctuations in the amount of energy emitted by the Sun. ...